Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records
Area code 937 prefixes
781 of the 786 possible NXX blocks are assigned in area code 937 (99.4% of capacity), spread across 123 rate centers and 48 holders. The largest holders are OHIO BELL TEL CO (157 blocks, 20.1%), NEW CINGULAR WIRELESS PCS, LLC - IL (73 blocks, 9.3%), T-MOBILE USA, INC. (64 blocks, 8.2%). Grouped by brand, AT&T accounts for 244 blocks; brand-attributable holders cover 95% of the code, and the rest are CLECs, VoIP wholesalers and regional carriers that trade under their own names. The assignment records here run from 2001-01-24 to 2026-10-12, with 50 blocks handed out in 2001 alone. 545 blocks (70%) are in thousands-block pooling, meaning the block is shared between carriers in 1,000-number lots rather than held whole – which is why a single NXX can serve several carriers at once. 1 assigned block (937) is not yet in service: assigned to a carrier but not open for calls, so a caller ID from one is spoofed. 112 were growth assignments – additional blocks to a carrier that had already filled its earlier ones.
781 assigned blocks of 786
123 rate centers
48 holders of record
70% in thousands-block pooling
Largest holders in 937
| Holder of record, as NANPA names it | Brand | Blocks | Share |
|---|---|---|---|
| OHIO BELL TEL CO | AT&T | 157 | 20.1% |
| NEW CINGULAR WIRELESS PCS, LLC - IL | AT&T | 73 | 9.3% |
| T-MOBILE USA, INC. | T-Mobile | 64 | 8.2% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | Verizon | 61 | 7.8% |
| BRIGHTSPEED OF NORTHWEST OHIO, INC. | Brightspeed | 55 | 7% |
| LEVEL 3 COMMUNICATIONS, LLC - OH | Lumen | 54 | 6.9% |
| FRONTIER NORTH, INC. - OH | Frontier | 53 | 6.8% |
| TWC IP ENABLED SERVICES, LLC | Charter | 32 | 4.1% |
| PAETEC ITEL, LLC | Windstream | 25 | 3.2% |
| ONVOY, LLC - OH | Onvoy | 20 | 2.6% |
| BANDWIDTH.COM CLEC, LLC - OH | Bandwidth | 17 | 2.2% |
| SPOK, INC. | Spok | 15 | 1.9% |
Names are printed as they appear in the assignment records, which is the legal entity rather than the brand. Holding a block is not the same as serving the numbers in it: portability moves numbers between carriers and pooling splits a block between several.
Rate centers with their own page
Rate centers where at least three blocks are assigned, excluding the numbered metro zone codes. The remainder are in the full table below.
DAYTON 251SPRINGFLD 42BEAVERCREK 19XENIA 19BELLEFNTAN 18MARYSVILLE 17WILMINGTON 17SIDNEY 17FAIRBORN 15PIQUA 15GREENVILLE 15TROY 13MSBGWCRLTN 12VANDALIA 12HILLSBORO 11NEWCARLISL 11GEORGETOWN 9ENON 9FRANKLIN 9EATON 8URBANA 7TROTWOOD 6TIPP CITY 6WEST UNION 5CENTERVLLE 5ENGLEWOOD 5UNION CITY 5CLARKSVL 4SPRING VLY 4YLSPGCLFTN 4JACKSONCTR 4RUSSELLSPT 4BOTKINS 4CEDARVILLE 4GREENFIELD 4MILFORDCTR 3BELLE CTR 3FT LORAMIE 3BELLBROOK 3ROSSBURG 3WMANSFIELD 3ANNA 3W LIBERTY 3COVINGTON 3VERSAILLES 3HUNTSVILLE 3ARCANUM 3ST PARIS 3WESTMILTON 3SOUTHSOLON 3GERMANTOWN 3
All 781 assigned blocks
One row per NXX. “Pooled” means carriers draw 1,000-number lots from the block rather than holding all 10,000, so a pooled prefix can belong to several carriers at once. “Not in service” means assigned but not yet open for calls – a caller ID from one of those is necessarily spoofed. The holder column gives the brand where the legal entity maps to one; the full legal names are in the holders table above, exactly as NANPA records them.
| Prefix | Holder of record | Rate center | Assigned | Pooled | In service |
|---|---|---|---|---|---|
| 937-200 | AT&T | FAIRBORN | 2016-12-19 | yes | yes |
| 937-201 | Spok | DAYTON | – | – | yes |
| 937-202 | Lumen | HOLLANSBG | 2002-06-25 | yes | yes |
| 937-203 | Verizon | DAYTON | 2001-05-15 | yes | yes |
| 937-204 | AT&T | DAYTON | 2012-03-12 | yes | yes |
| 937-205 | Verizon | HILLSBORO | – | – | yes |
| 937-206 | Verizon | SPRINGFLD | – | – | yes |
| 937-207 | Verizon | SPRINGFLD | – | – | yes |
| 937-208 | AT&T | DAYTON | – | – | yes |
| 937-209 | T-Mobile | MARYSVILLE | – | yes | yes |
| 937-210 | AT&T | BELLEFNTAN | – | yes | yes |
| 937-212 | AT&T | DAYTON | – | yes | yes |
| 937-213 | AT&T | GEORGETOWN | – | yes | yes |
| 937-214 | AT&T | PIQUA | – | yes | yes |
| 937-215 | AT&T | SPRINGFLD | – | – | yes |
| 937-216 | AT&T | TROY | – | – | yes |
| 937-217 | AT&T | WEST UNION | – | yes | yes |
| 937-218 | AT&T | WILMINGTON | – | yes | yes |
| 937-219 | T-Mobile | DAYTON | – | yes | yes |
| 937-220 | AT&T | DAYTON | – | – | yes |
| 937-221 | AT&T | DAYTON | – | yes | yes |
| 937-222 | AT&T | DAYTON | – | – | yes |
| 937-223 | AT&T | DAYTON | – | – | yes |
| 937-224 | AT&T | DAYTON | – | – | yes |
| 937-225 | AT&T | DAYTON | – | yes | yes |
| 937-226 | AT&T | DAYTON | – | yes | yes |
| 937-227 | AT&T | DAYTON | – | – | yes |
| 937-228 | AT&T | DAYTON | – | yes | yes |
| 937-229 | AT&T | DAYTON | – | yes | yes |
| 937-230 | Onvoy | MILFORDCTR | 2016-04-07 | yes | yes |
| 937-231 | AT&T | DAYTON | – | – | yes |
| 937-232 | AT&T | DAYTON | – | – | yes |
| 937-233 | AT&T | DAYTON | – | – | yes |
| 937-234 | AT&T | DAYTON | – | yes | yes |
| 937-235 | AT&T | DAYTON | – | – | yes |
| 937-236 | AT&T | DAYTON | – | – | yes |
| 937-237 | AT&T | DAYTON | – | – | yes |
| 937-238 | AT&T | DAYTON | – | – | yes |
| 937-239 | AT&T | DAYTON | – | – | yes |
| 937-240 | Bandwidth | BELLE CTR | 2011-10-21 | yes | yes |
| 937-241 | T-Mobile | DAYTON | – | yes | yes |
| 937-242 | AT&T | DAYTON | – | yes | yes |
| 937-243 | Verizon | MARYSVILLE | – | – | yes |
| 937-244 | AT&T | SPRINGFLD | – | yes | yes |
| 937-245 | AT&T | DAYTON | – | yes | yes |
| 937-246 | Brightspeed | RAYMOND | – | yes | yes |
| 937-247 | Altafiber | MSBGWCRLTN | 2002-09-11 | yes | yes |
| 937-248 | T-Mobile | TROTWOOD | – | yes | yes |
| 937-249 | AT&T | ABERDEEN | 2009-12-08 | yes | yes |
| 937-250 | Altafiber | DAYTON | 2017-05-03 | yes | yes |
| 937-251 | T-Mobile | DAYTON | – | yes | yes |
| 937-252 | AT&T | DAYTON | – | – | yes |
| 937-253 | AT&T | DAYTON | – | – | yes |
| 937-254 | AT&T | DAYTON | – | – | yes |
| 937-255 | Lumen | DAYTON | – | – | yes |
| 937-256 | AT&T | DAYTON | – | – | yes |
| 937-257 | Lumen | DAYTON | – | – | yes |
| 937-258 | AT&T | DAYTON | – | – | yes |
| 937-259 | AT&T | DAYTON | – | yes | yes |
| 937-260 | AT&T | DAYTON | – | yes | yes |
| 937-262 | AT&T | DAYTON | – | yes | yes |
| 937-263 | AT&T | DAYTON | – | – | yes |
| 937-264 | AT&T | VANDALIA | – | yes | yes |
| 937-265 | AT&T | PITCHIN | – | yes | yes |
| 937-266 | AT&T | DAYTON | – | – | yes |
| 937-267 | AT&T | DAYTON | – | yes | yes |
| 937-268 | AT&T | DAYTON | – | – | yes |
| 937-269 | AT&T | DAYTON | – | yes | yes |
| 937-270 | AT&T | DAYTON | 2001-10-30 | – | yes |
| 937-271 | Verizon | DAYTON | – | – | yes |
| 937-272 | Verizon | DAYTON | – | – | yes |
| 937-273 | Brightspeed | ELDORADO | – | yes | yes |
| 937-274 | AT&T | DAYTON | – | – | yes |
| 937-275 | AT&T | DAYTON | – | – | yes |
| 937-276 | AT&T | DAYTON | – | – | yes |
| 937-277 | AT&T | DAYTON | – | – | yes |
| 937-278 | AT&T | DAYTON | – | – | yes |
| 937-279 | AT&T | DAYTON | – | yes | yes |
| 937-280 | Windstream | VANDALIA | – | yes | yes |
| 937-281 | Altafiber | DAYTON | – | – | yes |
| 937-282 | Spok | DAYTON | – | – | yes |
| 937-283 | Frontier | WILMINGTON | – | yes | yes |
| 937-284 | Verizon | SPRINGFLD | – | yes | yes |
| 937-285 | AT&T | DAYTON | – | yes | yes |
| 937-286 | AT&T | DAYTON | – | – | yes |
| 937-287 | Verizon | DAYTON | – | – | yes |
| 937-288 | AT&T | DANVILLE | – | yes | yes |
| 937-289 | Frontier | CLARKSVL | – | yes | yes |
| 937-290 | AT&T | DAYTON | – | – | yes |
| 937-291 | AT&T | DAYTON | – | – | yes |
| 937-292 | Brightspeed | BELLEFNTAN | – | yes | yes |
| 937-293 | AT&T | DAYTON | – | – | yes |
| 937-294 | AT&T | DAYTON | – | – | yes |
| 937-295 | Brightspeed | FT LORAMIE | – | – | yes |
| 937-296 | AT&T | DAYTON | – | yes | yes |
| 937-297 | AT&T | DAYTON | – | – | yes |
| 937-298 | AT&T | DAYTON | – | – | yes |
| 937-299 | AT&T | DAYTON | – | – | yes |
| 937-300 | T-Mobile | EATON | 2017-06-01 | yes | yes |
| 937-301 | AT&T | DAYTON | – | yes | yes |
| 937-302 | T-Mobile | WILMINGTON | 2001-03-26 | yes | yes |
| 937-303 | Lumen | MARYSVILLE | 2001-05-22 | yes | yes |
| 937-304 | T-Mobile | DAYTON | – | yes | yes |
| 937-305 | T-Mobile | DAYTON | – | yes | yes |
| 937-306 | Windstream | BEAVERCREK | – | yes | yes |
| 937-307 | Verizon | DAYTON | – | – | yes |
| 937-308 | Verizon | NEWCARLISL | – | – | yes |
| 937-309 | T-Mobile | MARYSVILLE | – | yes | yes |
| 937-310 | Windstream | BELLBROOK | – | yes | yes |
| 937-312 | AT&T | DAYTON | – | yes | yes |
| 937-313 | T-Mobile | DAYTON | – | yes | yes |
| 937-314 | Windstream | DONNELSVL | – | yes | yes |
| 937-315 | Windstream | MEDWAY | – | yes | yes |
| 937-316 | Brightspeed | GREENVILLE | – | – | yes |
| 937-317 | Windstream | SPRING VLY | – | yes | yes |
| 937-318 | AT&T | FAIRBORN | – | yes | yes |
| 937-319 | Windstream | YLSPGCLFTN | – | yes | yes |
| 937-320 | AT&T | BEAVERCREK | – | yes | yes |
| 937-321 | T-Mobile | DAYTON | – | yes | yes |
| 937-322 | AT&T | SPRINGFLD | – | – | yes |
| 937-323 | AT&T | SPRINGFLD | – | – | yes |
| 937-324 | AT&T | SPRINGFLD | – | – | yes |
| 937-325 | AT&T | SPRINGFLD | – | – | yes |
| 937-326 | T-Mobile | MSBGWCRLTN | 2024-02-20 | yes | yes |
| 937-327 | AT&T | SPRINGFLD | – | yes | yes |
| 937-328 | AT&T | SPRINGFLD | – | – | yes |
| 937-329 | AT&T | DAYTON | – | yes | yes |
| 937-330 | Spok | ENON | – | – | yes |
| 937-331 | AT&T | DAYTON | – | yes | yes |
| 937-332 | Frontier | TROY | – | – | yes |
| 937-333 | AT&T | DAYTON | – | – | yes |
| 937-334 | Spok | DAYTON | – | – | yes |
| 937-335 | Frontier | TROY | – | – | yes |
| 937-336 | AT&T | EATON | – | yes | yes |
| 937-337 | Brightspeed | ANSONIA | – | yes | yes |
| 937-338 | Brightspeed | ROSSBURG | – | – | yes |
| 937-339 | Frontier | TROY | – | – | yes |
| 937-340 | Windstream | ENON | – | yes | yes |
| 937-341 | AT&T | DAYTON | – | – | yes |
| 937-342 | AT&T | SPRINGFLD | – | yes | yes |
| 937-343 | Windstream | FAIRBORN | – | yes | yes |
| 937-344 | AT&T | DAYTON | – | – | yes |
| 937-345 | Bandwidth | DAYTON | 2022-07-21 | yes | yes |
| 937-346 | Windstream | SPRINGFLD | – | yes | yes |
| 937-347 | Windstream | XENIA | – | yes | yes |
| 937-348 | Brightspeed | MAGNETCSPG | – | yes | yes |
| 937-349 | Brightspeed | MILFORDCTR | – | yes | yes |
| 937-350 | Windstream | CENTERVLLE | – | yes | yes |
| 937-351 | T-Mobile | MARYSVILLE | 2022-11-08 | yes | yes |
| 937-352 | Windstream | XENIA | – | yes | yes |
| 937-353 | Windstream | MSBGWCRLTN | – | yes | yes |
| 937-354 | Brightspeed | MT VICTORY | – | yes | yes |
| 937-355 | Brightspeed | WMANSFIELD | – | yes | yes |
| 937-356 | AT&T | DAYTON | – | yes | yes |
| 937-357 | American Messaging | BEAVERCREK | – | – | yes |
| 937-358 | Brightspeed | YORKCENTER | – | yes | yes |
| 937-359 | Spok | DAYTON | – | – | yes |
| 937-360 | T-Mobile | SPRINGFLD | – | yes | yes |
| 937-361 | T-Mobile | DAYTON | – | yes | yes |
| 937-362 | Brightspeed | ROSEWOOD | – | yes | yes |
| 937-363 | Brightspeed | RIDGEWAY | – | – | yes |
| 937-364 | Frontier | LYNCHBURG | – | yes | yes |
| 937-365 | AT&T | RAINSBORO | – | yes | yes |
| 937-366 | Frontier | WILMINGTON | 2001-05-11 | yes | yes |
| 937-367 | T-Mobile | DAYTON | – | yes | yes |
| 937-368 | AT&T | FLTCHELENA | – | yes | yes |
| 937-369 | T-Mobile | DAYTON | – | yes | yes |
| 937-370 | Spok | ENON | – | – | yes |
| 937-371 | Verizon | DAYTON | – | – | yes |
| 937-372 | AT&T | XENIA | – | – | yes |
| 937-373 | Frontier | DECATUR | – | yes | yes |
| 937-374 | AT&T | XENIA | – | yes | yes |
| 937-375 | Frontier | HIGGINSPT | – | yes | yes |
| 937-376 | AT&T | XENIA | – | – | yes |
| 937-377 | Frontier | RUSSELLVL | – | yes | yes |
| 937-378 | Frontier | GEORGETOWN | – | yes | yes |
| 937-379 | Frontier | HAMERSVL | – | yes | yes |
| 937-380 | T-Mobile | DAYTON | 2001-02-28 | yes | yes |
| 937-381 | Windstream | PIQUA | – | yes | yes |
| 937-382 | Frontier | WILMINGTON | – | – | yes |
| 937-383 | Frontier | WILMINGTON | – | – | yes |
| 937-384 | AT&T | MSBGWCRLTN | – | yes | yes |
| 937-385 | Charter | DECATUR | 2023-04-11 | yes | yes |
| 937-386 | Frontier | SEAMAN | – | yes | yes |
| 937-387 | Windstream | VANDALIA | – | yes | yes |
| 937-388 | Windstream | MSBGWCRLTN | – | yes | yes |
| 937-389 | T-Mobile | DAYTON | – | yes | yes |
| 937-390 | AT&T | SPRINGFLD | – | – | yes |
| 937-391 | Spok | ENON | – | – | yes |
| 937-392 | AT&T | RIPLEY | – | yes | yes |
| 937-393 | AT&T | HILLSBORO | – | – | yes |
| 937-394 | Brightspeed | ANNA | – | – | yes |
| 937-395 | AT&T | DAYTON | – | yes | yes |
| 937-396 | AT&T | DAYTON | – | yes | yes |
| 937-397 | AT&T | DAYTON | 2001-12-17 | yes | yes |
| 937-398 | Windstream | SPRINGFLD | – | yes | yes |
| 937-399 | AT&T | SPRINGFLD | – | – | yes |
| 937-400 | Onvoy | JACKSONCTR | 2017-06-14 | yes | yes |
| 937-401 | Verizon | DAYTON | 2004-07-21 | yes | yes |
| 937-402 | T-Mobile | HILLSBORO | 2001-02-06 | yes | yes |
| 937-403 | AT&T | HILLSBORO | 2001-05-11 | yes | yes |
| 937-404 | Brightspeed | BELLEFNTAN | 2001-05-22 | yes | yes |
| 937-405 | Lumen | NEWCARLISL | 2001-08-08 | yes | yes |
| 937-406 | American Messaging | DAYTON | – | – | yes |
| 937-407 | Verizon | BELLEFNTAN | – | – | yes |
| 937-408 | Verizon | SPRINGFLD | – | – | yes |
| 937-409 | AT&T | DAYTON | – | – | yes |
| 937-410 | Verizon | VANDALIA | – | yes | yes |
| 937-412 | Lumen | FAIRBORN | 2002-02-21 | yes | yes |
| 937-413 | American Messaging | DAYTON | – | – | yes |
| 937-414 | T-Mobile | DAYTON | 2001-10-04 | yes | yes |
| 937-415 | AT&T | VANDALIA | – | – | yes |
| 937-416 | Verizon | DAYTON | – | – | yes |
| 937-417 | Verizon | GREENVILLE | – | – | yes |
| 937-418 | Verizon | PIQUA | – | – | yes |
| 937-419 | Lumen | SIDNEY | 2001-12-12 | yes | yes |
| 937-420 | GOLDSTAR COMMUNICATIONS, LLC - OH | FT LORAMIE | 2003-05-06 | – | yes |
| 937-421 | Brightspeed | JACKSONCTR | 2001-05-17 | yes | yes |
| 937-422 | T-Mobile | DAYTON | – | yes | yes |
| 937-423 | AT&T | GREENVILLE | – | yes | yes |
| 937-424 | Windstream | DAYTON | – | yes | yes |
| 937-425 | Lumen | DAYTON | – | – | yes |
| 937-426 | AT&T | BEAVERCREK | – | – | yes |
| 937-427 | AT&T | BEAVERCREK | – | – | yes |
| 937-428 | AT&T | DAYTON | – | – | yes |
| 937-429 | AT&T | BEAVERCREK | – | – | yes |
| 937-430 | AT&T | DAYTON | – | – | yes |
| 937-431 | AT&T | BEAVERCREK | – | – | yes |
| 937-432 | AT&T | DAYTON | – | yes | yes |
| 937-433 | AT&T | DAYTON | – | – | yes |
| 937-434 | AT&T | DAYTON | – | – | yes |
| 937-435 | AT&T | DAYTON | – | – | yes |
| 937-436 | AT&T | DAYTON | – | – | yes |
| 937-437 | Brightspeed | NEW PARIS | – | yes | yes |
| 937-438 | AT&T | DAYTON | – | – | yes |
| 937-439 | AT&T | DAYTON | – | – | yes |
| 937-440 | Frontier | TROY | – | – | yes |
| 937-441 | Verizon | BELLEFNTAN | – | – | yes |
| 937-442 | Frontier | MOWRYSTOWN | – | yes | yes |
| 937-443 | AT&T | DAYTON | – | yes | yes |
| 937-444 | Frontier | MOUNT ORAB | – | yes | yes |
| 937-445 | AT&T | DAYTON | – | – | yes |
| 937-446 | Frontier | SARDINIA | – | yes | yes |
| 937-447 | Brightspeed | GETTYSBURG | – | yes | yes |
| 937-448 | Brightspeed | BRADFORD | – | yes | yes |
| 937-449 | AT&T | DAYTON | – | yes | yes |
| 937-450 | AT&T | SPRINGFLD | 2001-06-26 | yes | yes |
| 937-451 | AT&T | PIQUA | 2001-06-26 | yes | yes |
| 937-452 | Brightspeed | CAMDEN | – | yes | yes |
| 937-453 | AT&T | BOWERSVLLE | – | yes | yes |
| 937-454 | AT&T | VANDALIA | – | – | yes |
| 937-455 | AT&T | DAYTON | – | – | yes |
| 937-456 | Brightspeed | EATON | – | – | yes |
| 937-457 | AT&T | DAYTON | – | – | yes |
| 937-458 | Windstream | BEAVERCREK | – | yes | yes |
| 937-459 | T-Mobile | GREENVILLE | – | yes | yes |
| 937-460 | AT&T | SPRINGFLD | 2002-02-12 | yes | yes |
| 937-461 | AT&T | DAYTON | – | yes | yes |
| 937-462 | AT&T | SOCHARLETN | – | yes | yes |
| 937-463 | AT&T | DAYTON | – | yes | yes |
| 937-464 | Brightspeed | BELLE CTR | – | – | yes |
| 937-465 | Brightspeed | W LIBERTY | – | – | yes |
| 937-466 | AT&T | MARSHALL | – | yes | yes |
| 937-467 | T-Mobile | GREENVILLE | – | yes | yes |
| 937-468 | Brightspeed | RUSHSYLVAN | – | yes | yes |
| 937-469 | T-Mobile | DAYTON | – | yes | yes |
| 937-470 | Verizon | DAYTON | – | – | yes |
| 937-471 | Verizon | SPRINGFLD | – | yes | yes |
| 937-472 | Brightspeed | EATON | – | yes | yes |
| 937-473 | Windstream | COVINGTON | – | – | yes |
| 937-474 | Verizon | DAYTON | – | – | yes |
| 937-475 | Verizon | DAYTON | – | – | yes |
| 937-476 | AT&T | DAYTON | – | yes | yes |
| 937-477 | Verizon | DAYTON | – | – | yes |
| 937-478 | Verizon | DAYTON | – | – | yes |
| 937-479 | Verizon | DAYTON | – | – | yes |
| 937-480 | Spok | DAYTON | – | – | yes |
| 937-481 | Lumen | WILMINGTON | 2003-12-11 | yes | yes |
| 937-482 | Windstream | FAIRBORN | – | yes | yes |
| 937-483 | T-Mobile | GEORGETOWN | – | yes | yes |
| 937-484 | THE CHAMPAIGN TELEPHONE COMPANY | URBANA | – | – | yes |
| 937-485 | AT&T | DAYTON | – | – | yes |
| 937-486 | Frontier | PT WILLIAM | – | yes | yes |
| 937-487 | Lumen | DAYTON | 2008-07-17 | yes | yes |
| 937-488 | Frontier | NEWBRLNGTN | – | yes | yes |
| 937-489 | T-Mobile | SIDNEY | – | yes | yes |
| 937-490 | Lumen | BEAVERCREK | – | yes | yes |
| 937-491 | Spok | ENON | – | – | yes |
| 937-492 | Brightspeed | SIDNEY | – | – | yes |
| 937-493 | Brightspeed | SIDNEY | – | – | yes |
| 937-494 | Brightspeed | SIDNEY | – | – | yes |
| 937-495 | AT&T | DAYTON | – | – | yes |
| 937-496 | AT&T | DAYTON | – | yes | yes |
| 937-497 | Brightspeed | SIDNEY | – | – | yes |
| 937-498 | Brightspeed | SIDNEY | – | – | yes |
| 937-499 | AT&T | DAYTON | – | yes | yes |
| 937-500 | AT&T | HILLSBORO | 2017-07-28 | yes | yes |
| 937-501 | Lumen | CLARKSVL | 2002-06-05 | yes | yes |
| 937-502 | Lumen | XENIA | 2002-02-21 | yes | yes |
| 937-503 | T-Mobile | DAYTON | 2011-10-07 | yes | yes |
| 937-504 | AT&T | SPRINGFLD | 2011-10-27 | yes | yes |
| 937-505 | AT&T | SPRINGFLD | 2001-11-26 | yes | yes |
| 937-506 | Charter | TIPP CITY | – | yes | yes |
| 937-507 | TIER 2 COMMUNICATIONS, LLC | SIDNEY | 2004-04-27 | yes | yes |
| 937-508 | T-Mobile | URBANA | 2001-08-29 | yes | yes |
| 937-509 | Verizon | HILLSBORO | 2002-02-25 | – | yes |
| 937-510 | AT&T | DAYTON | 2002-03-18 | yes | yes |
| 937-512 | AT&T | DAYTON | – | – | yes |
| 937-514 | Verizon | FRANKLIN | – | yes | yes |
| 937-515 | Verizon | GEORGETOWN | 2001-12-12 | – | yes |
| 937-516 | T-Mobile | DAYTON | 2011-11-16 | yes | yes |
| 937-517 | Charter | SINKINGSPG | 2023-04-19 | yes | yes |
| 937-518 | HD CARRIER LLC | DAYTON | 2020-08-04 | yes | yes |
| 937-519 | Vonage | DAYTON | 2018-03-26 | yes | yes |
| 937-520 | AT&T | DAYTON | 2001-05-21 | – | yes |
| 937-521 | Altafiber | SPRINGFLD | 2005-02-04 | yes | yes |
| 937-522 | Charter | DAYTON | – | yes | yes |
| 937-523 | Lumen | SPRINGFLD | – | yes | yes |
| 937-524 | T-Mobile | TROY | – | yes | yes |
| 937-525 | AT&T | SPRINGFLD | – | – | yes |
| 937-526 | Brightspeed | VERSAILLES | – | yes | yes |
| 937-527 | T-Mobile | WILMINGTON | – | yes | yes |
| 937-528 | AT&T | DAYTON | – | yes | yes |
| 937-529 | T-Mobile | TROTWOOD | 2005-01-06 | yes | yes |
| 937-530 | Bandwidth | MSBGWCRLTN | – | yes | yes |
| 937-531 | Lumen | DAYTON | 2001-12-26 | yes | yes |
| 937-532 | T-Mobile | XENIA | – | yes | yes |
| 937-533 | T-Mobile | EATON | – | yes | yes |
| 937-534 | AT&T | DAYTON | – | – | yes |
| 937-535 | Altafiber | DAYTON | – | – | yes |
| 937-536 | T-Mobile | SPRINGFLD | – | yes | yes |
| 937-537 | T-Mobile | MARYSVILLE | – | yes | yes |
| 937-538 | T-Mobile | SIDNEY | – | yes | yes |
| 937-539 | T-Mobile | BELLEFNTAN | – | yes | yes |
| 937-540 | Altafiber | ENGLEWOOD | – | yes | yes |
| 937-541 | T-Mobile | PIQUA | – | yes | yes |
| 937-542 | AT&T | DAYTON | – | yes | yes |
| 937-543 | T-Mobile | NEWCARLISL | – | yes | yes |
| 937-544 | Frontier | WEST UNION | – | – | yes |
| 937-545 | Verizon | DAYTON | – | – | yes |
| 937-546 | AT&T | DAYTON | – | – | yes |
| 937-547 | Brightspeed | GREENVILLE | – | – | yes |
| 937-548 | Brightspeed | GREENVILLE | – | – | yes |
| 937-549 | Frontier | MANCHESTER | – | yes | yes |
| 937-550 | Lumen | FRANKLIN | 2002-05-15 | yes | yes |
| 937-551 | Lumen | PHILLIPSBG | 2002-06-25 | yes | yes |
| 937-552 | Charter | TROY | – | yes | yes |
| 937-553 | Lumen | MARYSVILLE | 2002-06-12 | yes | yes |
| 937-554 | T-Mobile | DAYTON | – | – | yes |
| 937-556 | Lumen | WILMINGTON | 2002-08-16 | yes | yes |
| 937-557 | Lumen | FRANKLIN | 2002-02-28 | yes | yes |
| 937-558 | Windstream | DAYTON | 2001-01-31 | yes | yes |
| 937-559 | AT&T | DAYTON | 2001-09-14 | – | yes |
| 937-560 | Lumen | MSBGWCRLTN | – | yes | yes |
| 937-561 | AT&T | SPRINGFLD | 2007-03-07 | yes | yes |
| 937-562 | AT&T | XENIA | – | yes | yes |
| 937-563 | Lumen | PITCHIN | 2014-05-15 | yes | yes |
| 937-564 | Verizon | GREENVILLE | 2002-05-06 | – | yes |
| 937-565 | Lumen | BELLEFNTAN | 2002-05-08 | yes | yes |
| 937-566 | Peerless | WILMINGTON | 2002-06-25 | yes | yes |
| 937-567 | AT&T | DAYTON | – | yes | yes |
| 937-568 | AT&T | SO VIENNA | – | yes | yes |
| 937-569 | Lumen | GREENVILLE | 2001-12-12 | yes | yes |
| 937-570 | Verizon | PIQUA | 2002-05-28 | – | yes |
| 937-571 | Lumen | WILMINGTON | 2002-06-05 | yes | yes |
| 937-572 | Verizon | DAYTON | – | – | yes |
| 937-573 | Lumen | TROY | 2002-06-25 | yes | yes |
| 937-574 | Lumen | CLARKSVL | 2002-06-25 | yes | yes |
| 937-575 | GOLDSTAR COMMUNICATIONS, LLC - OH | SIDNEY | – | – | yes |
| 937-576 | Lumen | VANDALIA | 2002-07-29 | yes | yes |
| 937-577 | Lumen | CLARKSVL | 2002-08-16 | yes | yes |
| 937-578 | Brightspeed | MARYSVILLE | – | yes | yes |
| 937-579 | Lumen | LYNCHBURG | 2002-08-16 | yes | yes |
| 937-580 | AT&T | DAYTON | 2001-01-24 | yes | yes |
| 937-581 | AT&T | DAYTON | – | – | yes |
| 937-582 | Lumen | DE GRAFF | 2002-08-22 | yes | yes |
| 937-583 | Lumen | LEWISBURG | 2002-06-25 | yes | yes |
| 937-584 | Frontier | SABINA | – | yes | yes |
| 937-585 | Brightspeed | DE GRAFF | – | – | yes |
| 937-586 | AT&T | DAYTON | – | yes | yes |
| 937-587 | Frontier | PEEBLES | – | yes | yes |
| 937-588 | Frontier | SINKINGSPG | – | yes | yes |
| 937-589 | Lumen | HUNTSVILLE | 2002-08-22 | yes | yes |
| 937-590 | Lumen | UNION CITY | 2002-08-22 | yes | yes |
| 937-591 | AT&T | SPRINGFLD | 2002-08-12 | yes | yes |
| 937-592 | Brightspeed | BELLEFNTAN | – | – | yes |
| 937-593 | Brightspeed | BELLEFNTAN | – | – | yes |
| 937-594 | AT&T | MARYSVILLE | – | yes | yes |
| 937-595 | Lumen | BELLEFNTAN | 2002-08-22 | yes | yes |
| 937-596 | Brightspeed | JACKSONCTR | – | – | yes |
| 937-597 | AT&T | BELLEFNTAN | – | – | yes |
| 937-598 | Lumen | E LIBERTY | 2002-08-22 | yes | yes |
| 937-599 | Brightspeed | BELLEFNTAN | – | – | yes |
| 937-600 | Onvoy | XENIA | 2017-10-31 | yes | yes |
| 937-601 | Lumen | WMANSFIELD | 2002-08-22 | yes | yes |
| 937-602 | Verizon | DAYTON | – | – | yes |
| 937-603 | T-Mobile | DAYTON | – | yes | yes |
| 937-604 | T-Mobile | DAYTON | – | yes | yes |
| 937-605 | T-Mobile | SPRINGFLD | – | yes | yes |
| 937-606 | T-Mobile | PIQUA | – | yes | yes |
| 937-607 | T-Mobile | DAYTON | 2012-03-19 | yes | yes |
| 937-608 | T-Mobile | DAYTON | – | yes | yes |
| 937-609 | Verizon | DAYTON | – | – | yes |
| 937-610 | Altafiber | DAYTON | 2002-08-22 | yes | yes |
| 937-612 | Lumen | NO LEWISBG | 2002-08-22 | yes | yes |
| 937-613 | Verizon | DAYTON | – | – | yes |
| 937-615 | AT&T | PIQUA | – | yes | yes |
| 937-616 | Telnyx | XENIA | 2017-03-08 | yes | yes |
| 937-617 | Lumen | RIDGEWAY | 2002-08-22 | yes | yes |
| 937-618 | AT&T | GEORGETOWN | 2002-09-06 | yes | yes |
| 937-619 | Altafiber | CENTERVLLE | 2002-09-11 | yes | yes |
| 937-620 | Verizon | DAYTON | – | – | yes |
| 937-621 | AT&T | GREENVILLE | 2002-09-05 | yes | yes |
| 937-622 | AT&T | SIDNEY | – | yes | yes |
| 937-623 | Verizon | DAYTON | – | – | yes |
| 937-624 | T-Mobile | SPRINGFLD | – | yes | yes |
| 937-625 | Charter | BLANCHESTR | 2001-07-11 | yes | yes |
| 937-626 | T-Mobile | DAYTON | – | yes | yes |
| 937-627 | AT&T | DAYTON | – | – | yes |
| 937-628 | Spok | DAYTON | – | – | yes |
| 937-629 | AT&T | SPRINGFLD | – | yes | yes |
| 937-630 | AT&T | DAYTON | – | yes | yes |
| 937-631 | Verizon | SPRINGFLD | 2002-09-17 | – | yes |
| 937-632 | Charter | PLEASANTHL | 2001-07-11 | yes | yes |
| 937-633 | Charter | RUSSELLSPT | 2001-07-11 | yes | yes |
| 937-634 | Lumen | GRATIS | 2002-07-30 | yes | yes |
| 937-635 | Spok | ENON | – | – | yes |
| 937-636 | Spok | DAYTON | – | – | yes |
| 937-637 | Onvoy | DAYTON | 2018-04-09 | yes | yes |
| 937-638 | Verizon | SIDNEY | 2002-09-17 | – | yes |
| 937-639 | GOLDSTAR COMMUNICATIONS, LLC - OH | ANNA | 2007-04-05 | yes | yes |
| 937-640 | AT&T | DAYTON | – | yes | yes |
| 937-641 | AT&T | DAYTON | – | yes | yes |
| 937-642 | Brightspeed | MARYSVILLE | – | – | yes |
| 937-643 | AT&T | DAYTON | – | – | yes |
| 937-644 | Brightspeed | MARYSVILLE | – | – | yes |
| 937-645 | Brightspeed | MARYSVILLE | – | yes | yes |
| 937-646 | Charter | ANNA | 2002-11-18 | yes | yes |
| 937-647 | American Messaging | DAYTON | – | – | yes |
| 937-648 | Verizon | DAYTON | 2003-11-11 | yes | yes |
| 937-649 | Lumen | BELLEFNTAN | – | yes | yes |
| 937-650 | CT COMMUNICATIONS NETWORK, INC. - OH | W LIBERTY | 2001-07-03 | – | yes |
| 937-651 | CT COMMUNICATIONS NETWORK, INC. - OH | BELLEFNTAN | 2001-07-03 | – | yes |
| 937-652 | THE CHAMPAIGN TELEPHONE COMPANY | URBANA | – | – | yes |
| 937-653 | THE CHAMPAIGN TELEPHONE COMPANY | URBANA | – | – | yes |
| 937-654 | AT&T | DAYTON | – | – | yes |
| 937-655 | Frontier | WILMINGTON | – | yes | yes |
| 937-656 | Lumen | DAYTON | – | – | yes |
| 937-657 | Verizon | DAYTON | – | – | yes |
| 937-658 | AT&T | SIDNEY | – | yes | yes |
| 937-659 | Charter | ANSONIA | 2002-11-05 | yes | yes |
| 937-660 | Lumen | DAYTON | – | yes | yes |
| 937-661 | AT&T | HILLSBORO | 2008-03-04 | yes | yes |
| 937-662 | Verizon | ARCANUM | 2005-02-15 | yes | yes |
| 937-663 | Windstream | ST PARIS | – | yes | yes |
| 937-664 | TERRA NOVA TELECOM INC. | SABINA | 2017-02-03 | yes | yes |
| 937-665 | Altafiber | VANDALIA | 2002-09-20 | yes | yes |
| 937-666 | Brightspeed | E LIBERTY | – | yes | yes |
| 937-667 | Frontier | TIPP CITY | – | – | yes |
| 937-668 | FIRST COMMUNICATIONS, LLC | DAYTON | 2007-12-20 | yes | yes |
| 937-669 | Frontier | TIPP CITY | – | yes | yes |
| 937-670 | T-Mobile | GREENVILLE | 2004-11-04 | yes | yes |
| 937-671 | Verizon | DAYTON | – | – | yes |
| 937-672 | Verizon | DAYTON | – | – | yes |
| 937-673 | T-Mobile | DAYTON | – | yes | yes |
| 937-674 | T-Mobile | DAYTON | – | yes | yes |
| 937-675 | AT&T | JAMESTOWN | – | yes | yes |
| 937-676 | Windstream | PLEASANTHL | – | yes | yes |
| 937-677 | TPx | DAYTON | 2001-07-11 | yes | yes |
| 937-678 | Brightspeed | WMANCHESTR | – | yes | yes |
| 937-679 | Verizon | NEWCARLISL | – | yes | yes |
| 937-680 | Verizon | GREENVILLE | – | yes | yes |
| 937-681 | Verizon | DAYTON | 2002-10-14 | – | yes |
| 937-682 | Charter | RUSHSYLVAN | 2003-03-15 | yes | yes |
| 937-683 | AT&T | EATON | 2008-03-03 | yes | yes |
| 937-684 | Lumen | DAYTON | 2001-07-26 | yes | yes |
| 937-685 | Frontier | MARTINSVL | – | yes | yes |
| 937-686 | Brightspeed | HUNTSVILLE | – | – | yes |
| 937-687 | Frontier | NEWLEBANON | – | yes | yes |
| 937-688 | Lumen | SPRINGFLD | 2001-07-26 | yes | yes |
| 937-689 | Verizon | DAYTON | – | – | yes |
| 937-690 | TIER 2 COMMUNICATIONS, LLC | GEORGETOWN | 2005-11-14 | yes | yes |
| 937-691 | GOLDSTAR COMMUNICATIONS, LLC - OH | BOTKINS | 2006-08-30 | – | yes |
| 937-692 | Brightspeed | ARCANUM | – | – | yes |
| 937-693 | Brightspeed | BOTKINS | – | – | yes |
| 937-694 | Verizon | DAYTON | – | – | yes |
| 937-695 | AT&T | WINCHESTER | – | yes | yes |
| 937-696 | Frontier | FARMERSVL | – | yes | yes |
| 937-697 | Lumen | CEDARVILLE | 2005-03-08 | yes | yes |
| 937-698 | Frontier | WESTMILTON | – | yes | yes |
| 937-699 | AT&T | BELLEFNTAN | 2008-03-04 | yes | yes |
| 937-701 | T-Mobile | DAYTON | 2012-04-10 | yes | yes |
| 937-702 | Altafiber | BEAVERCREK | 2011-08-08 | yes | yes |
| 937-703 | AT&T | TROY | 2006-06-30 | yes | yes |
| 937-704 | AT&T | FRANKLIN | – | yes | yes |
| 937-705 | Altafiber | BEAVERCREK | 2010-06-25 | yes | yes |
| 937-706 | Bandwidth | SOCHARLETN | 2012-10-17 | yes | yes |
| 937-707 | AT&T | MARYSVILLE | 2003-05-06 | yes | yes |
| 937-708 | AT&T | XENIA | – | yes | yes |
| 937-709 | AT&T | BELLBROOK | 2010-02-23 | yes | yes |
| 937-710 | AT&T | SIDNEY | 2004-08-12 | yes | yes |
| 937-712 | HORIZON SERVICES, INC. - OH | MOUNT ORAB | 2012-11-07 | yes | yes |
| 937-713 | Lumen | DAYTON | 2012-07-25 | yes | yes |
| 937-714 | Verizon | UNION CITY | 2005-03-08 | yes | yes |
| 937-715 | Bandwidth | TROTWOOD | 2010-05-25 | yes | yes |
| 937-716 | Onvoy | DAYTON | 2010-03-25 | yes | yes |
| 937-717 | T-Mobile | SPRINGFLD | 2006-10-13 | yes | yes |
| 937-718 | AT&T | DAYTON | 2001-10-30 | – | yes |
| 937-719 | Lumen | WESTMILTON | 2005-02-23 | yes | yes |
| 937-720 | Charter | NEW PARIS | 2007-02-16 | yes | yes |
| 937-721 | Bandwidth | MAGNETCSPG | 2017-01-27 | yes | yes |
| 937-722 | TIER 2 COMMUNICATIONS, LLC | BELLEFNTAN | 2006-06-16 | yes | yes |
| 937-723 | Lumen | DAYTON | 2005-03-23 | yes | yes |
| 937-724 | Telnyx | SPRING VLY | 2017-03-10 | yes | yes |
| 937-725 | Verizon | WILMINGTON | – | – | yes |
| 937-726 | Verizon | SIDNEY | – | – | yes |
| 937-727 | T-Mobile | SPRINGFLD | – | yes | yes |
| 937-728 | Verizon | WILMINGTON | 2001-03-13 | – | yes |
| 937-729 | AT&T | NEWCARLISL | 2015-02-05 | yes | yes |
| 937-730 | Lumen | ROSSBURG | 2005-02-08 | yes | yes |
| 937-731 | AT&T | GEORGETOWN | 2008-03-04 | yes | yes |
| 937-732 | AT&T | DAYTON | 2008-09-30 | yes | yes |
| 937-733 | T-Mobile | EATON | 2005-06-29 | yes | yes |
| 937-734 | Altafiber | DAYTON | 2009-01-27 | yes | yes |
| 937-735 | Lumen | WALEXNDRIA | 2017-02-03 | yes | yes |
| 937-736 | AT&T | XENIA | 2007-06-26 | yes | yes |
| 937-737 | Charter | ARCANUM | 2007-02-16 | yes | yes |
| 937-738 | Bandwidth | MARYSVILLE | 2006-02-03 | yes | yes |
| 937-739 | COMMIO, LLC | DAYTON | 2017-06-20 | yes | yes |
| 937-741 | Peerless | DAYTON | – | yes | yes |
| 937-742 | AT&T | VANDALIA | 2008-04-08 | yes | yes |
| 937-743 | AT&T | FRANKLIN | – | – | yes |
| 937-744 | Charter | TIPP CITY | 2018-07-30 | yes | yes |
| 937-745 | Charter | ROSEWOOD | 2007-08-03 | yes | yes |
| 937-746 | AT&T | FRANKLIN | – | – | yes |
| 937-747 | Brightspeed | NO LEWISBG | – | yes | yes |
| 937-748 | AT&T | FRANKLIN | – | yes | yes |
| 937-749 | Bandwidth | PIQUA | 2019-05-16 | yes | yes |
| 937-750 | AT&T | DAYTON | – | – | yes |
| 937-751 | Onvoy | DAYTON | – | yes | yes |
| 937-752 | Frontier | SEAMAN | 2001-05-29 | yes | yes |
| 937-753 | Lumen | COVINGTON | 2001-05-29 | yes | yes |
| 937-754 | AT&T | FAIRBORN | – | yes | yes |
| 937-755 | Brightspeed | NEWMADISON | 2001-05-29 | yes | yes |
| 937-756 | Lumen | SOUTHSOLON | 2001-05-29 | yes | yes |
| 937-757 | Lumen | WMANCHESTR | 2001-05-29 | yes | yes |
| 937-758 | Windstream | ST PARIS | 2001-05-29 | yes | yes |
| 937-759 | EXIANT COMMUNICATIONS LLC | DAYTON | 2019-09-13 | yes | yes |
| 937-760 | AT&T | DAYTON | – | – | yes |
| 937-761 | AT&T | TROY | 2019-10-03 | yes | yes |
| 937-762 | Lumen | DAYTON | 2014-02-26 | yes | yes |
| 937-763 | AT&T | HILLSBORO | – | – | yes |
| 937-764 | AT&T | BELFAST | – | yes | yes |
| 937-765 | AT&T | NEWCARLISL | – | yes | yes |
| 937-766 | AT&T | CEDARVILLE | – | yes | yes |
| 937-767 | AT&T | YLSPGCLFTN | – | yes | yes |
| 937-768 | AT&T | XENIA | – | yes | yes |
| 937-769 | AT&T | YLSPGCLFTN | – | yes | yes |
| 937-770 | Verizon | BROOKVILLE | 2002-04-02 | yes | yes |
| 937-771 | Lumen | ENGLEWOOD | 2002-04-02 | yes | yes |
| 937-772 | Charter | URBANA | – | yes | yes |
| 937-773 | AT&T | PIQUA | – | – | yes |
| 937-774 | Verizon | PIQUA | 2024-04-04 | yes | yes |
| 937-775 | AT&T | FAIRBORN | – | – | yes |
| 937-776 | Verizon | DAYTON | – | – | yes |
| 937-777 | Lumen | FAIRBORN | – | yes | yes |
| 937-778 | AT&T | PIQUA | – | – | yes |
| 937-779 | Lumen | WEST UNION | 2002-04-10 | yes | yes |
| 937-780 | Frontier | LEESBURG | – | yes | yes |
| 937-781 | AT&T | DAYTON | – | yes | yes |
| 937-782 | AT&T | BEAVERCREK | 2015-02-05 | yes | yes |
| 937-783 | Frontier | BLANCHESTR | – | yes | yes |
| 937-784 | CSC WIRELESS, LLC | DAYTON | 2020-05-20 | yes | yes |
| 937-785 | Charter | ROSSBURG | 2007-07-04 | yes | yes |
| 937-786 | Lumen | GREENVILLE | 2014-02-28 | yes | yes |
| 937-787 | Frontier | GRATIS | – | yes | yes |
| 937-788 | THE CHAMPAIGN TELEPHONE COMPANY | TERREHAUTE | – | – | yes |
| 937-789 | AT&T | DAYTON | 2001-12-17 | yes | yes |
| 937-790 | T-Mobile | FRANKLIN | 2001-02-06 | yes | yes |
| 937-791 | NUSO, LLC | DAYTON | 2020-09-01 | yes | yes |
| 937-792 | Charter | WEST UNION | 2021-01-27 | yes | yes |
| 937-793 | IP HORIZON LLC | DAYTON | 2021-02-16 | yes | yes |
| 937-794 | T-Mobile | PIQUA | 2021-03-19 | yes | yes |
| 937-795 | AT&T | ABERDEEN | – | yes | yes |
| 937-796 | Telnyx | FAIRBORN | 2021-04-02 | yes | yes |
| 937-797 | Telnyx | BEAVERCREK | 2017-03-08 | yes | yes |
| 937-798 | Charter | PEEBLES | 2007-02-16 | yes | yes |
| 937-799 | GOLDSTAR COMMUNICATIONS, LLC - OH | VERSAILLES | 2010-11-02 | yes | yes |
| 937-800 | TERRA NOVA TELECOM INC. | DAYTON | 2019-03-19 | yes | yes |
| 937-801 | HORIZON SERVICES, INC. - OH | GEORGETOWN | 2012-10-17 | yes | yes |
| 937-802 | NUSO, LLC | DAYTON | 2012-11-27 | yes | yes |
| 937-803 | HORIZON SERVICES, INC. - OH | GREENFIELD | 2012-12-10 | yes | yes |
| 937-804 | Lumen | LEESBURG | – | yes | yes |
| 937-805 | Charter | WILMINGTON | 2013-06-03 | yes | yes |
| 937-806 | Windstream | FRANKLIN | 2001-04-19 | yes | yes |
| 937-807 | Windstream | COVINGTON | 2016-07-15 | yes | yes |
| 937-808 | Charter | GREENVILLE | 2013-06-03 | yes | yes |
| 937-809 | Charter | DAYTON | – | yes | yes |
| 937-810 | Verizon | RUSSELLSPT | 2005-02-14 | yes | yes |
| 937-812 | Onvoy | XENIA | 2021-06-21 | yes | yes |
| 937-813 | Charter | DAYTON | 2013-05-28 | yes | yes |
| 937-814 | Onvoy | DAYTON | 2021-07-16 | yes | yes |
| 937-815 | T-Mobile | DAYTON | 2014-03-03 | yes | yes |
| 937-816 | Verizon | FAIRBORN | 2014-03-20 | yes | yes |
| 937-817 | Lumen | CHRISTISBG | 2005-03-04 | yes | yes |
| 937-818 | T-Mobile | DAYTON | 2013-03-11 | yes | yes |
| 937-819 | T-Mobile | MARYSVILLE | 2021-12-10 | yes | yes |
| 937-820 | T-Mobile | HILLSBORO | 2022-01-19 | yes | yes |
| 937-821 | Charter | FT LORAMIE | 2007-10-16 | yes | yes |
| 937-822 | Twilio | GEORGETOWN | 2001-05-29 | yes | yes |
| 937-823 | AT&T | DAYTON | – | yes | yes |
| 937-824 | AT&T | DAYTON | – | yes | yes |
| 937-825 | AT&T | DAYTON | – | yes | yes |
| 937-826 | Frontier | WOODSTOCK | – | yes | yes |
| 937-827 | Charter | VERSAILLES | 2001-08-23 | yes | yes |
| 937-828 | Frontier | CATAWBA | – | yes | yes |
| 937-829 | T-Mobile | DAYTON | – | – | yes |
| 937-830 | T-Mobile | DAYTON | – | yes | yes |
| 937-831 | T-Mobile | SPRINGFLD | – | yes | yes |
| 937-832 | Frontier | ENGLEWOOD | – | – | yes |
| 937-833 | Frontier | BROOKVILLE | – | yes | yes |
| 937-834 | Frontier | MECHANCSBG | – | yes | yes |
| 937-835 | Frontier | LIBERTY | – | yes | yes |
| 937-836 | Frontier | ENGLEWOOD | – | – | yes |
| 937-837 | Frontier | TROTWOOD | – | – | yes |
| 937-838 | T-Mobile | DAYTON | – | yes | yes |
| 937-839 | Frontier | WALEXNDRIA | – | yes | yes |
| 937-840 | AT&T | HILLSBORO | – | yes | yes |
| 937-841 | Charter | GETTYSBURG | 2001-08-24 | yes | yes |
| 937-842 | Brightspeed | RUSSELLSPT | – | – | yes |
| 937-843 | Brightspeed | RUSSELLSPT | – | – | yes |
| 937-844 | T-Mobile | BELLEFNTAN | – | yes | yes |
| 937-845 | AT&T | NEWCARLISL | – | – | yes |
| 937-846 | AT&T | NEWCARLISL | – | yes | yes |
| 937-847 | AT&T | MSBGWCRLTN | – | – | yes |
| 937-848 | AT&T | BELLBROOK | – | yes | yes |
| 937-849 | AT&T | MEDWAY | – | yes | yes |
| 937-850 | American Messaging | DAYTON | – | – | yes |
| 937-851 | IP HORIZON LLC | NEWCARLISL | 2024-02-06 | yes | yes |
| 937-852 | American Messaging | SPRINGFLD | – | – | yes |
| 937-853 | Windstream | DAYTON | – | yes | yes |
| 937-854 | Frontier | TROTWOOD | – | – | yes |
| 937-855 | HANSON COMMUNICATIONS OF OHIO, LLC-GERMANTOWN | GERMANTOWN | – | – | yes |
| 937-856 | Altafiber | DAYTON | 2014-03-27 | yes | yes |
| 937-857 | AT&T | CHRISTISBG | – | yes | yes |
| 937-858 | TSC COMMUNICATIONS, INC. - OH | BOTKINS | 2009-07-15 | yes | yes |
| 937-859 | AT&T | MSBGWCRLTN | – | – | yes |
| 937-860 | Bandwidth | YLSPGCLFTN | 2014-04-30 | yes | yes |
| 937-861 | T-Mobile | EATON | 2022-01-28 | yes | yes |
| 937-862 | AT&T | SPRING VLY | – | yes | yes |
| 937-863 | AT&T | ENON | – | yes | yes |
| 937-864 | AT&T | ENON | – | yes | yes |
| 937-865 | AT&T | MSBGWCRLTN | – | – | yes |
| 937-866 | AT&T | MSBGWCRLTN | – | – | yes |
| 937-867 | Onvoy | DAYTON | 2007-12-21 | yes | yes |
| 937-868 | TIER 2 COMMUNICATIONS, LLC | GREENFIELD | 2006-10-13 | yes | yes |
| 937-869 | T-Mobile | URBANA | – | yes | yes |
| 937-870 | Lumen | NEWLEBANON | 2014-05-15 | yes | yes |
| 937-871 | Peerless | DANVILLE | 2016-03-11 | yes | yes |
| 937-872 | AT&T | JAMESTOWN | 2010-12-21 | yes | yes |
| 937-873 | AT&T | FAIRBORN | – | yes | yes |
| 937-874 | Lumen | FAIRBORN | – | yes | yes |
| 937-875 | T-Mobile | TROY | – | yes | yes |
| 937-876 | T-Mobile | GREENFIELD | 2001-08-23 | yes | yes |
| 937-877 | T-Mobile | TIPP CITY | – | yes | yes |
| 937-878 | AT&T | FAIRBORN | – | – | yes |
| 937-879 | AT&T | FAIRBORN | – | – | yes |
| 937-880 | Onvoy | RAYMOND | 2016-04-07 | yes | yes |
| 937-881 | Lumen | UNION CITY | 2005-02-08 | yes | yes |
| 937-882 | AT&T | DONNELSVL | – | yes | yes |
| 937-883 | AT&T | SOUTHSOLON | – | yes | yes |
| 937-884 | Frontier | PHILLIPSBG | – | yes | yes |
| 937-885 | AT&T | CENTERVLLE | – | – | yes |
| 937-886 | AT&T | CENTERVLLE | – | yes | yes |
| 937-887 | Verizon | W LIBERTY | 2005-02-24 | yes | yes |
| 937-888 | Lumen | SO VIENNA | 2014-05-15 | yes | yes |
| 937-889 | Lumen | LIBERTY | 2005-12-22 | yes | yes |
| 937-890 | AT&T | VANDALIA | – | – | yes |
| 937-891 | Twilio | CEDARVILLE | 2021-12-03 | yes | yes |
| 937-892 | Verizon | WEST UNION | 2009-07-15 | yes | yes |
| 937-893 | SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE | MARYSVILLE | 2017-02-21 | yes | yes |
| 937-894 | Charter | BOTKINS | 2001-08-26 | yes | yes |
| 937-895 | Charter | GERMANTOWN | 2001-08-26 | yes | yes |
| 937-896 | AT&T | URBANA | 2008-09-02 | yes | yes |
| 937-897 | Onvoy | SIDNEY | 2018-02-22 | yes | yes |
| 937-898 | AT&T | VANDALIA | – | – | yes |
| 937-899 | Charter | UNION CITY | – | yes | yes |
| 937-900 | Onvoy | BEAVERCREK | 2017-11-01 | yes | yes |
| 937-901 | Verizon | DAYTON | – | – | yes |
| 937-902 | Verizon | DAYTON | – | – | yes |
| 937-903 | Verizon | DAYTON | – | – | yes |
| 937-904 | Lumen | DAYTON | – | – | yes |
| 937-905 | Onvoy | WMANSFIELD | 2021-07-22 | yes | yes |
| 937-906 | Windstream | DAYTON | 2022-02-17 | yes | yes |
| 937-907 | Bandwidth | CENTERVLLE | 2014-04-25 | yes | yes |
| 937-908 | Lumen | SPRING VLY | 2014-05-15 | yes | yes |
| 937-909 | Lumen | FLTCHELENA | 2014-05-15 | yes | yes |
| 937-910 | Lumen | DAYTON | – | – | yes |
| 937-912 | Lumen | BEAVERCREK | – | yes | yes |
| 937-913 | NUSO, LLC | DAYTON | – | yes | yes |
| 937-914 | Lumen | MSBGWCRLTN | – | yes | yes |
| 937-915 | Lumen | LAURA | 2014-05-19 | yes | yes |
| 937-916 | Lumen | PIQUA | – | yes | yes |
| 937-917 | Lumen | SPRINGFLD | – | yes | yes |
| 937-918 | Lumen | VANDALIA | – | yes | yes |
| 937-919 | Lumen | XENIA | – | yes | yes |
| 937-920 | T-Mobile | SPRINGFLD | 2022-11-17 | yes | yes |
| 937-921 | American Messaging | PIQUA | – | – | yes |
| 937-923 | American Messaging | NEWCARLISL | – | – | yes |
| 937-924 | IP HORIZON LLC | MARYSVILLE | 2024-02-06 | yes | yes |
| 937-925 | AT&T | SPRINGFLD | – | yes | yes |
| 937-926 | AT&T | SPRINGFLD | – | yes | yes |
| 937-927 | AT&T | SUGRTRERDG | – | yes | yes |
| 937-928 | Verizon | XENIA | 2014-06-19 | yes | yes |
| 937-929 | AT&T | BEAVERCREK | 2014-10-01 | yes | yes |
| 937-930 | Charter | DAYTON | 2019-10-25 | yes | yes |
| 937-931 | T-Mobile | DAYTON | 2014-08-22 | yes | yes |
| 937-932 | Onvoy | HUNTSVILLE | 2020-05-28 | yes | yes |
| 937-933 | Verizon | TERREHAUTE | 2006-06-12 | yes | yes |
| 937-934 | Onvoy | JACKSONCTR | 2022-02-04 | yes | yes |
| 937-935 | Verizon | BELLEFNTAN | – | – | yes |
| 937-936 | Bandwidth | BOWERSVLLE | 2014-08-25 | yes | yes |
| 937-937 | Onvoy | WESTMILTON | 2026-10-12 | yes | no |
| 937-938 | Charter | DAYTON | 2006-11-26 | yes | yes |
| 937-939 | Telnyx | HILLSBORO | – | yes | yes |
| 937-940 | Spok | DAYTON | – | – | yes |
| 937-941 | Verizon | NEWCARLISL | 2014-10-08 | yes | yes |
| 937-942 | Onvoy | HIGGINSPT | 2022-02-01 | yes | yes |
| 937-943 | CSC VOICE, LLC | TROY | 2022-05-06 | yes | yes |
| 937-944 | AT&T | WILMINGTON | 2006-10-17 | yes | yes |
| 937-945 | Bandwidth | SOUTHSOLON | 2022-02-25 | yes | yes |
| 937-946 | T-Mobile | XENIA | 2023-08-04 | yes | yes |
| 937-947 | Frontier | LAURA | – | yes | yes |
| 937-948 | IP HORIZON LLC | SIDNEY | 2024-02-06 | yes | yes |
| 937-949 | Charter | DAYTON | 2014-10-23 | yes | yes |
| 937-951 | T-Mobile | DAYTON | 2015-07-21 | yes | yes |
| 937-952 | Verizon | DAYTON | 2014-10-16 | yes | yes |
| 937-953 | Charter | MANCHESTER | 2023-04-11 | yes | yes |
| 937-954 | Charter | BELLE CTR | 2007-08-03 | yes | yes |
| 937-955 | T-Mobile | GERMANTOWN | 2022-03-09 | yes | yes |
| 937-956 | Bandwidth | BEAVERCREK | 2015-05-06 | yes | yes |
| 937-957 | Peerless | RIPLEY | 2016-03-17 | yes | yes |
| 937-960 | T-Mobile | TROTWOOD | 2015-04-09 | yes | yes |
| 937-961 | WABASH MUTUAL TELEPHONE COMPANY - OH | GREENVILLE | 2023-07-27 | yes | yes |
| 937-962 | Frontier | LEWISBURG | – | yes | yes |
| 937-963 | AT&T | DAYTON | 2016-01-12 | yes | yes |
| 937-964 | AT&T | NO HAMPTON | – | yes | yes |
| 937-965 | Charter | DAYTON | – | yes | yes |
| 937-966 | Bandwidth | NO HAMPTON | 2011-03-10 | yes | yes |
| 937-967 | Onvoy | MT VICTORY | 2016-04-07 | yes | yes |
| 937-968 | Brightspeed | UNION CITY | – | yes | yes |
| 937-969 | AT&T | TREMONT CY | – | yes | yes |
| 937-970 | Onvoy | CEDARVILLE | 2014-12-23 | yes | yes |
| 937-971 | AT&T | XENIA | 2014-07-30 | yes | yes |
| 937-972 | Peerless | DAYTON | 2015-02-13 | yes | yes |
| 937-973 | Spok | DAYTON | – | – | yes |
| 937-974 | Verizon | DAYTON | – | – | yes |
| 937-975 | Peerless | WINCHESTER | 2016-04-29 | yes | yes |
| 937-977 | Telnyx | DAYTON | – | yes | yes |
| 937-978 | Spok | ENON | – | – | yes |
| 937-979 | AT&T | DAYTON | 2014-10-10 | yes | yes |
| 937-980 | Peerless | TROY | 2016-01-05 | yes | yes |
| 937-981 | Frontier | GREENFIELD | – | yes | yes |
| 937-982 | Brightspeed | BYHALIA | – | yes | yes |
| 937-983 | T-Mobile | TIPP CITY | 2024-02-20 | yes | yes |
| 937-984 | Twilio | MILFORDCTR | 2020-05-28 | yes | yes |
| 937-985 | Bandwidth | DAYTON | 2008-05-13 | yes | yes |
| 937-986 | AT&T | BEAVERCREK | 2016-07-26 | yes | yes |
| 937-987 | Frontier | NEW VIENNA | – | yes | yes |
| 937-988 | Charter | BEAVERCREK | 2016-06-28 | yes | yes |
| 937-989 | Onvoy | YORKCENTER | 2020-05-28 | yes | yes |
| 937-990 | Charter | XENIA | 2016-06-03 | yes | yes |
| 937-991 | T-Mobile | DAYTON | 2016-05-25 | yes | yes |
| 937-992 | Frontier | WILMINGTON | 2016-03-30 | yes | yes |
| 937-993 | T-Mobile | DAYTON | 2015-10-23 | yes | yes |
| 937-994 | Windstream | ST PARIS | 2015-06-25 | yes | yes |
| 937-995 | Bandwidth | FAIRBORN | 2015-06-01 | yes | yes |
| 937-996 | Brightspeed | NEWMADISON | – | – | yes |
| 937-997 | Brightspeed | HOLLANSBG | – | – | yes |
| 937-998 | Bandwidth | ENGLEWOOD | 2015-05-06 | yes | yes |
| 937-999 | CINBELL EXT TERR LLC DBA ALTAFIBER CONNECTED SVCS | DAYTON | 2010-12-17 | yes | yes |
Frequently asked
How many prefixes does area code 937 have?
781 NXX blocks are assigned of 786 possible. Each block is 10,000 consecutive numbers, so the code currently covers about 7,810 thousand-number ranges across 123 rate centers.
What do the first three digits after 937 tell me?
They identify the block, which tells you the rate center it was allocated to and the carrier that received it. They do not tell you who serves the number today: portability moves numbers between carriers, and pooling splits a block between several of them.
Is a 937 prefix tied to a specific town?
To a rate center, which is billing geography rather than a town. NANPA abbreviates rate center names to ten characters and in large metros uses zone codes, so the name is a NANPA label, not a place name.
What does “pooled” mean in the 937 table?
That the block is in thousands-block pooling: carriers draw 1,000-number lots from it instead of taking all 10,000. 545 of 937's blocks are pooled, which is how regulators slowed down area code exhaustion – and why one prefix can belong to several carriers.
Source and limits
NANPA CO Code Assignment Records, all states, utilized codes, file updated 11/01/2026 – the rows where the record's Use field is “AS” (assigned). Unavailable codes are excluded. The records say who received a block and when, not who serves a particular number today.
More about this code: overview · carriers · spam complaints · local time