Area code 341 prefixes
113 of the 786 possible NXX blocks are assigned in area code 341 (14.4% of capacity), spread across 13 rate centers and 16 holders. The largest holders are FRACTEL, LLC (33 blocks, 29.2%), ONVOY, LLC - CA (24 blocks, 21.2%), NEW CINGULAR WIRELESS PCS, LLC (12 blocks, 10.6%). Grouped by brand, Onvoy accounts for 24 blocks; brand-attributable holders cover 61% 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 2019-05-31 to 2026-09-29, with 25 blocks handed out in 2021 alone. 112 blocks (99%) 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. 4 assigned blocks (266, 269, 270, 271) are not yet in service: assigned to a carrier but not open for calls, so a caller ID from one is spoofed. 93 were growth assignments – additional blocks to a carrier that had already filled its earlier ones.
Largest holders in 341
| Holder of record, as NANPA names it | Brand | Blocks | Share |
|---|---|---|---|
| FRACTEL, LLC | – | 33 | 29.2% |
| ONVOY, LLC - CA | Onvoy | 24 | 21.2% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 12 | 10.6% |
| T-MOBILE USA, INC. | T-Mobile | 12 | 10.6% |
| BANDWIDTH.COM CLEC, LLC - CA | Bandwidth | 8 | 7.1% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | Verizon | 5 | 4.4% |
| SONIC TELECOM, LLC - CA | – | 4 | 3.5% |
| TELNYX LLC | Telnyx | 2 | 1.8% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CA | AT&T | 2 | 1.8% |
| COMMIO, LLC | – | 2 | 1.8% |
| ONVOY SPECTRUM, LLC | Charter | 2 | 1.8% |
| TON80 COMMUNICATIONS, LLC | – | 2 | 1.8% |
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.
All 113 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 |
|---|---|---|---|---|---|
| 341-200 | FRACTEL, LLC | HRCUL-RODE | 2020-07-02 | yes | yes |
| 341-201 | Telnyx | FRNK OLIVR | 2020-12-17 | yes | yes |
| 341-202 | AT&T | OKLD MN-PD | 2021-07-07 | yes | yes |
| 341-203 | Verizon | RICHMOND | 2021-07-29 | yes | yes |
| 341-204 | Bandwidth | FRNK GRNLF | 2021-10-28 | yes | yes |
| 341-205 | Bandwidth | OKLD MN-PD | 2021-08-31 | yes | yes |
| 341-206 | Verizon | FRNK MAIN | 2021-10-15 | yes | yes |
| 341-207 | Bandwidth | RICHMOND | 2021-10-26 | yes | yes |
| 341-208 | AT&T | HAYWARD | 2021-10-26 | yes | yes |
| 341-209 | Bandwidth | FRNK OLIVR | 2022-01-10 | yes | yes |
| 341-210 | Bandwidth | OKLD ALMD | 2021-09-27 | yes | yes |
| 341-212 | Telnyx | OKLD BKLY | 2021-11-21 | yes | yes |
| 341-213 | T-Mobile | OKLD MN-PD | 2022-01-10 | yes | yes |
| 341-214 | AT&T | HRCUL-RODE | 2022-04-12 | yes | yes |
| 341-215 | Bandwidth | RICHMOND | 2022-02-04 | yes | yes |
| 341-216 | Bandwidth | FRNK MAIN | 2022-02-22 | yes | yes |
| 341-217 | Bandwidth | OKLD ALMD | 2022-09-02 | yes | yes |
| 341-218 | Comcast | OKLD FRTVL | 2022-10-10 | yes | yes |
| 341-219 | TPx | OKLD BKLY | 2022-06-03 | yes | yes |
| 341-220 | AT&T | OKLD MN-PD | 2022-09-19 | yes | yes |
| 341-221 | T-Mobile | HAYWARD | 2022-02-28 | yes | yes |
| 341-222 | FRACTEL, LLC | OKLD FRTVL | 2019-12-03 | yes | yes |
| 341-223 | COMMIO, LLC | OKLD ALMD | 2022-11-03 | yes | yes |
| 341-224 | AT&T | FRNK MAIN | 2022-12-12 | yes | yes |
| 341-225 | AT&T | FRNK GRNLF | 2023-02-16 | yes | yes |
| 341-226 | FRACTEL, LLC | OKLD FRTVL | 2020-05-28 | yes | yes |
| 341-227 | AT&T | FRNK OLIVR | 2023-02-16 | yes | yes |
| 341-228 | Verizon | FRNK MAIN | 2023-02-17 | yes | yes |
| 341-229 | Onvoy | OKLD MN-PD | 2023-03-30 | yes | yes |
| 341-230 | Onvoy | RICHMOND | 2023-04-12 | yes | yes |
| 341-231 | T-Mobile | ELSBR-PINL | 2023-05-08 | yes | yes |
| 341-232 | Onvoy | HAYWARD | 2023-05-12 | yes | yes |
| 341-233 | AT&T | FRNK MAIN | 2023-06-13 | yes | yes |
| 341-234 | FRACTEL, LLC | OKLD ALMD | 2021-01-13 | yes | yes |
| 341-235 | AT&T | FRNK GRNLF | 2023-08-04 | yes | yes |
| 341-236 | AT&T | FRNK OLIVR | 2023-08-04 | yes | yes |
| 341-237 | Onvoy | OKLD BKLY | 2023-08-17 | yes | yes |
| 341-238 | Onvoy | OKLD FRTVL | 2023-08-17 | yes | yes |
| 341-239 | Onvoy | OKLD ALMD | 2023-09-19 | yes | yes |
| 341-240 | T-Mobile | HAYWARD | 2023-11-01 | yes | yes |
| 341-241 | Onvoy | HAYWARD | 2022-07-13 | yes | yes |
| 341-242 | T-Mobile | RICHMOND | 2023-11-08 | yes | yes |
| 341-243 | COMMIO, LLC | HRCUL-RODE | 2023-12-21 | yes | yes |
| 341-244 | T-Mobile | OKLD TRNID | 2024-01-23 | yes | yes |
| 341-245 | Onvoy | HAYWARD | 2024-01-24 | yes | yes |
| 341-246 | Onvoy | FRNK OLIVR | 2024-02-07 | yes | yes |
| 341-247 | Onvoy | RICHMOND | 2024-02-07 | yes | yes |
| 341-248 | Onvoy | FRNK GRNLF | 2024-02-07 | yes | yes |
| 341-249 | AT&T | FRNK GRNLF | 2024-02-20 | yes | yes |
| 341-250 | Onvoy | OKLD FRTVL | 2024-03-18 | yes | yes |
| 341-251 | T-Mobile | ELSBR-PINL | 2024-03-27 | yes | yes |
| 341-252 | T-Mobile | FRNK MAIN | 2024-05-31 | yes | yes |
| 341-253 | Onvoy | OKLD BKLY | 2024-06-18 | yes | yes |
| 341-254 | T-Mobile | OKLD BKLY | 2024-09-09 | yes | yes |
| 341-255 | SHELCOMM | OKLD BKLY | 2024-09-10 | – | yes |
| 341-256 | T-Mobile | OKLD FRTVL | 2024-09-12 | yes | yes |
| 341-257 | Onvoy | FRNK MAIN | 2024-10-10 | yes | yes |
| 341-258 | AT&T | HAYWARD | 2024-10-15 | yes | yes |
| 341-259 | T-Mobile | ELSBR-PINL | 2024-11-14 | yes | yes |
| 341-260 | Verizon | HAYWARD | 2024-12-06 | yes | yes |
| 341-261 | Charter | FRNK GRNLF | 2025-01-02 | yes | yes |
| 341-262 | AT&T | HAYWARD | 2025-01-13 | yes | yes |
| 341-263 | Onvoy | FRNK MAIN | 2025-10-02 | yes | yes |
| 341-264 | Onvoy | OKLD MN-PD | 2025-10-02 | yes | yes |
| 341-265 | T-Mobile | ELSBR-PINL | 2025-11-28 | yes | yes |
| 341-266 | Onvoy | OKLD BKLY | 2026-07-24 | yes | no |
| 341-267 | Onvoy | OKLD TRNID | 2026-07-24 | yes | yes |
| 341-268 | Onvoy | FRNK OLIVR | 2026-07-28 | yes | yes |
| 341-269 | Onvoy | FRNK MAIN | 2026-08-07 | yes | no |
| 341-270 | AT&T | OKLD ALMD | 2026-09-02 | yes | no |
| 341-271 | Verizon | HAYWARD | 2026-09-29 | yes | no |
| 341-299 | FRACTEL, LLC | OKLD TRNID | 2021-04-18 | yes | yes |
| 341-300 | FRACTEL, LLC | RICHMOND | 2020-09-17 | yes | yes |
| 341-314 | Onvoy | ELSBR-PINL | 2020-12-07 | yes | yes |
| 341-333 | FRACTEL, LLC | OKLD BKLY | 2019-08-21 | yes | yes |
| 341-336 | FRACTEL, LLC | FRNK GRNLF | 2020-05-28 | yes | yes |
| 341-341 | Charter | FRNK OLIVR | 2024-09-20 | yes | yes |
| 341-342 | Onvoy | FRNK OLIVR | 2022-07-08 | yes | yes |
| 341-344 | SONIC TELECOM, LLC - CA | OKLD TRNID | 2021-11-19 | yes | yes |
| 341-345 | FRACTEL, LLC | FRNK MAIN | 2021-02-16 | yes | yes |
| 341-348 | FRACTEL, LLC | FRNK MAIN | 2021-04-18 | yes | yes |
| 341-356 | FRACTEL, LLC | FRNK MAIN | 2020-05-28 | yes | yes |
| 341-386 | FRACTEL, LLC | HAYWARD | 2021-04-18 | yes | yes |
| 341-388 | FRACTEL, LLC | RICHMOND | 2021-04-18 | yes | yes |
| 341-400 | FRACTEL, LLC | OKLD FRTVL | 2020-09-16 | yes | yes |
| 341-420 | SONIC TELECOM, LLC - CA | OKLD FRTVL | 2021-10-28 | yes | yes |
| 341-441 | SONIC TELECOM, LLC - CA | OKLD MN-PD | 2022-01-14 | yes | yes |
| 341-444 | FRACTEL, LLC | CROCKETT | 2019-12-03 | yes | yes |
| 341-465 | FRACTEL, LLC | FRNK MAIN | 2020-12-28 | yes | yes |
| 341-500 | FRACTEL, LLC | ELSBR-PINL | 2021-01-04 | yes | yes |
| 341-512 | SONIC TELECOM, LLC - CA | OKLD BKLY | 2022-09-01 | yes | yes |
| 341-529 | FRACTEL, LLC | FRNK MAIN | 2020-09-16 | yes | yes |
| 341-587 | FRACTEL, LLC | FRNK GRNLF | 2021-08-23 | yes | yes |
| 341-600 | FRACTEL, LLC | ELSBR-PINL | 2020-08-25 | yes | yes |
| 341-666 | FRACTEL, LLC | OKLD TRNID | 2019-12-30 | yes | yes |
| 341-667 | FRACTEL, LLC | OKLD FRTVL | 2021-07-07 | yes | yes |
| 341-688 | TON80 COMMUNICATIONS, LLC | OKLD BKLY | 2022-02-18 | yes | yes |
| 341-699 | FRACTEL, LLC | OKLD MN-PD | 2021-09-16 | yes | yes |
| 341-732 | FRACTEL, LLC | ELSBR-PINL | 2021-07-07 | yes | yes |
| 341-758 | FRACTEL, LLC | OKLD FRTVL | 2021-04-18 | yes | yes |
| 341-766 | FRACTEL, LLC | OKLD BKLY | 2020-05-28 | yes | yes |
| 341-777 | WIDE VOICE, LLC - CA | HAYWARD | 2019-05-31 | yes | yes |
| 341-786 | FRACTEL, LLC | FRNK MAIN | 2022-02-22 | yes | yes |
| 341-799 | FRACTEL, LLC | RICHMOND | 2020-05-27 | yes | yes |
| 341-800 | FRACTEL, LLC | HAYWARD | 2019-12-03 | yes | yes |
| 341-837 | TON80 COMMUNICATIONS, LLC | ELSBR-PINL | 2022-01-10 | yes | yes |
| 341-867 | Onvoy | CROCKETT | 2025-09-11 | yes | yes |
| 341-888 | WIDE VOICE, LLC - CA | FRNK MAIN | 2019-06-07 | yes | yes |
| 341-895 | Onvoy | OKLD ALMD | – | yes | yes |
| 341-899 | FRACTEL, LLC | OKLD TRNID | 2021-09-15 | yes | yes |
| 341-900 | FRACTEL, LLC | CROCKETT | 2020-11-13 | yes | yes |
| 341-946 | FRACTEL, LLC | OKLD BKLY | 2021-02-22 | yes | yes |
| 341-999 | FRACTEL, LLC | RICHMOND | 2019-07-22 | yes | yes |
Frequently asked
How many prefixes does area code 341 have?
113 NXX blocks are assigned of 786 possible. Each block is 10,000 consecutive numbers, so the code currently covers about 1,130 thousand-number ranges across 13 rate centers.
What do the first three digits after 341 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 341 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 341 table?
That the block is in thousands-block pooling: carriers draw 1,000-number lots from it instead of taking all 10,000. 112 of 341'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.
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