ADRIAN prefixes in area code 517
NANPA records 27 assigned NXX blocks to rate center ADRIAN in area code 517, 4.4% of the 616 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. 10 holders hold those blocks, the largest being OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (8), FRONTIER NORTH, INC. - MI (5), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (4). The earliest assignment on record here is 2002-08-13 and the most recent 2026-06-24. 19 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 478, 507, 541, 806 – 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 |
|---|---|---|---|---|
| 517-207 | INTERACTIVE SERVICES NETWORK, INC. | – | no | yes |
| 517-215 | T-Mobile OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2010-01-14 | yes | yes |
| 517-260 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | – | no | yes |
| 517-263 | Frontier FRONTIER NORTH, INC. - MI | – | no | yes |
| 517-264 | Frontier FRONTIER NORTH, INC. - MI | – | no | yes |
| 517-265 | Frontier FRONTIER NORTH, INC. - MI | – | no | yes |
| 517-266 | Frontier FRONTIER NORTH, INC. - MI | – | no | yes |
| 517-270 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | yes | yes |
| 517-280 | T-Mobile OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2021-01-19 | yes | yes |
| 517-291 | STRATUS NETWORKS | 2021-03-19 | yes | yes |
| 517-312 | Frontier FRONTIER NORTH, INC. - MI | 2015-04-23 | yes | yes |
| 517-366 | T-Mobile OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2010-04-02 | yes | yes |
| 517-389 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2026-06-24 | yes | no |
| 517-403 | T-Mobile OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | – | yes | yes |
| 517-417 | TC3 TELECOM, INC. - MI | – | no | yes |
| 517-438 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | – | yes | yes |
| 517-442 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | yes | yes |
| 517-564 | Spok SPOK, INC. | – | no | yes |
| 517-577 | Comcast COMCAST IP PHONE, LLC | – | yes | yes |
| 517-605 | T-Mobile OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | – | yes | yes |
| 517-633 | SKYE TELECOM LLC DBA SKYETEL | 2021-09-03 | yes | yes |
| 517-662 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 2010-11-10 | yes | yes |
| 517-673 | T-Mobile OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2002-08-13 | yes | yes |
| 517-759 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 2002-09-18 | yes | yes |
| 517-902 | T-Mobile OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | – | yes | yes |
| 517-918 | T-Mobile OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | – | yes | yes |
| 517-920 | INTERACTIVE SERVICES NETWORK, INC. | 2006-02-01 | 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 |
|---|---|---|---|
| OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | T-Mobile | 8 | 29.6% |
| FRONTIER NORTH, INC. - MI | Frontier | 5 | 18.5% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | Verizon | 4 | 14.8% |
| NEW CINGULAR WIRELESS PCS, LLC - IL | AT&T | 3 | 11.1% |
| INTERACTIVE SERVICES NETWORK, INC. | – | 2 | 7.4% |
| STRATUS NETWORKS | – | 1 | 3.7% |
| TC3 TELECOM, INC. - MI | – | 1 | 3.7% |
| SPOK, INC. | Spok | 1 | 3.7% |
| COMCAST IP PHONE, LLC | Comcast | 1 | 3.7% |
| SKYE TELECOM LLC DBA SKYETEL | – | 1 | 3.7% |
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 ADRIAN in area code 517?
27 blocks: 207, 215, 260, 263, 264, 265, 266, 270, 280, 291, 312, 366 and 15 more, all listed in the table above.
Which carriers have numbers in ADRIAN?
OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (8 blocks), FRONTIER NORTH, INC. - MI (5 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (4 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (3 blocks), INTERACTIVE SERVICES NETWORK, INC. (2 blocks), STRATUS NETWORKS (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is ADRIAN 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.