GRAND IS prefixes in area code 308
NANPA records 40 assigned NXX blocks to rate center GRAND IS in area code 308, 8.6% of the 465 blocks assigned in the code. A rate center is the billing geography a block is allocated to – NANPA truncates the name to ten characters, so read it as a NANPA label rather than a town. 25 holders hold those blocks, the largest being QWEST CORPORATION (6), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE (5), UNITED STATES CELLULAR - NE (4). The earliest assignment on record here is 2001-08-02 and the most recent 2026-06-17. 32 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots. The same rate center name also appears in area codes 503, 716, 971 – overlay codes cover the same geography, so a rate center is served by all of them.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 308-210 | NUSO, LLC | – | yes | yes |
| 308-218 | Windstream WINDSTREAM COMMUNICATIONS OF THE MIDEWEST INC - NE | 2009-12-14 | yes | yes |
| 308-227 | T-Mobile AERIAL COMMUNICATIONS, INC. | 2001-08-02 | yes | yes |
| 308-258 | AT&T AT&T - LOCAL | – | yes | yes |
| 308-267 | CSC WIRELESS, LLC | 2019-05-31 | yes | yes |
| 308-283 | Dish BOOST SUBSCRIBERCO L.L.C. | 2023-05-25 | yes | yes |
| 308-314 | Bandwidth BANDWIDTH.COM CLEC, LLC - NE | 2021-02-03 | yes | yes |
| 308-315 | IP HORIZON LLC | 2024-04-17 | yes | yes |
| 308-318 | NUSO, LLC | 2013-03-04 | yes | yes |
| 308-321 | T-Mobile AERIAL COMMUNICATIONS, INC. | 2019-07-11 | yes | yes |
| 308-329 | WAVENATION, LLC | 2025-07-11 | yes | yes |
| 308-339 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE | 2011-02-14 | yes | yes |
| 308-343 | AIRUS, INC. - NE | 2025-03-19 | yes | yes |
| 308-370 | N.E. COLORADO CELLULAR, INC. | – | no | yes |
| 308-379 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE | – | no | yes |
| 308-380 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE | – | no | yes |
| 308-381 | Lumen QWEST CORPORATION | – | no | yes |
| 308-382 | Lumen QWEST CORPORATION | – | no | yes |
| 308-383 | UNITED STATES CELLULAR - NE | – | yes | yes |
| 308-384 | Lumen QWEST CORPORATION | – | no | yes |
| 308-385 | Lumen QWEST CORPORATION | – | yes | yes |
| 308-389 | Lumen QWEST CORPORATION | – | yes | yes |
| 308-390 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE | – | no | yes |
| 308-391 | UNITED STATES CELLULAR - NE | – | yes | yes |
| 308-392 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2004-06-01 | yes | yes |
| 308-395 | Lumen QWEST CORPORATION | – | yes | yes |
| 308-398 | Windstream WINDSTREAM COMMUNICATIONS OF THE MIDEWEST INC - NE | – | no | yes |
| 308-403 | Telnyx TELNYX LLC | 2021-03-15 | yes | yes |
| 308-508 | HD CARRIER LLC | 2026-06-17 | yes | yes |
| 308-589 | UNITED STATES CELLULAR - NE | – | yes | yes |
| 308-600 | AHOI LLC | 2026-06-03 | yes | yes |
| 308-646 | Lumen LEVEL 3 COMMUNICATIONS, LLC - NE | – | yes | yes |
| 308-661 | Vonage VONAGE AMERICA LLC | 2019-09-19 | yes | yes |
| 308-663 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - NE | 2009-11-25 | yes | yes |
| 308-675 | Charter CHARTER IP ENABLED SERVICES, LLC | 2007-10-31 | yes | yes |
| 308-833 | Lumen CENTURYLINK COMMUNICATIONS, LLC | 2014-09-30 | yes | yes |
| 308-850 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE | – | yes | yes |
| 308-867 | COMMIO, LLC | 2022-04-04 | yes | yes |
| 308-910 | ALLO COMMUNICATIONS LLC | 2021-04-13 | yes | yes |
| 308-930 | UNITED STATES CELLULAR - NE | – | yes | yes |
The holder is who received the block from the numbering administrator. It is not necessarily the carrier serving a given number: numbers move with their owners, and a pooled block is shared.
Who holds the blocks
| Holder | Brand | Blocks | Share here |
|---|---|---|---|
| QWEST CORPORATION | Lumen | 6 | 15% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE | Verizon | 5 | 12.5% |
| UNITED STATES CELLULAR - NE | – | 4 | 10% |
| NUSO, LLC | – | 2 | 5% |
| WINDSTREAM COMMUNICATIONS OF THE MIDEWEST INC - NE | Windstream | 2 | 5% |
| AERIAL COMMUNICATIONS, INC. | T-Mobile | 2 | 5% |
| AT&T - LOCAL | AT&T | 1 | 2.5% |
| CSC WIRELESS, LLC | – | 1 | 2.5% |
| BOOST SUBSCRIBERCO L.L.C. | Dish | 1 | 2.5% |
| BANDWIDTH.COM CLEC, LLC - NE | Bandwidth | 1 | 2.5% |
| IP HORIZON LLC | – | 1 | 2.5% |
| WAVENATION, LLC | – | 1 | 2.5% |
| AIRUS, INC. - NE | – | 1 | 2.5% |
| N.E. COLORADO CELLULAR, INC. | – | 1 | 2.5% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 1 | 2.5% |
| TELNYX LLC | Telnyx | 1 | 2.5% |
| HD CARRIER LLC | – | 1 | 2.5% |
| AHOI LLC | – | 1 | 2.5% |
| LEVEL 3 COMMUNICATIONS, LLC - NE | Lumen | 1 | 2.5% |
| VONAGE AMERICA LLC | Vonage | 1 | 2.5% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - NE | AT&T | 1 | 2.5% |
| CHARTER IP ENABLED SERVICES, LLC | Charter | 1 | 2.5% |
| CENTURYLINK COMMUNICATIONS, LLC | Lumen | 1 | 2.5% |
| COMMIO, LLC | – | 1 | 2.5% |
| ALLO COMMUNICATIONS LLC | – | 1 | 2.5% |
Same rate center in other codes
Overlay codes cover the same geography, so one rate center is served by all of them.
Frequently asked
Which prefixes belong to GRAND IS in area code 308?
40 blocks: 210, 218, 227, 258, 267, 283, 314, 315, 318, 321, 329, 339 and 28 more, all listed in the table above.
Which carriers have numbers in GRAND IS?
QWEST CORPORATION (6 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE (5 blocks), UNITED STATES CELLULAR - NE (4 blocks), NUSO, LLC (2 blocks), WINDSTREAM COMMUNICATIONS OF THE MIDEWEST INC - NE (2 blocks), AERIAL COMMUNICATIONS, INC. (2 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is GRAND IS a city?
It is a rate center – the unit NANPA allocates number blocks to. Its name is abbreviated to ten characters and is not necessarily a settlement: we print it as recorded rather than guess at the full name.