IRON MT prefixes in area code 906
NANPA records 15 assigned NXX blocks to rate center IRON MT in area code 906, 4.2% of the 360 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. 9 holders hold those blocks, the largest being CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (4), MICHIGAN BELL TEL CO (3), NEW CINGULAR WIRELESS PCS, LLC - IL (2). The earliest assignment on record here is 2003-07-28 and the most recent 2026-03-09. 10 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.
Prefixes assigned here
| Prefix | Holder of record | Assigned | Pooled | In service |
|---|---|---|---|---|
| 906-200 | NUSO, LLC | 2023-01-31 | yes | yes |
| 906-221 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 2005-09-19 | yes | yes |
| 906-239 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 2004-05-27 | yes | yes |
| 906-271 | Verizon NEW CELL DBA CELLCOM | – | no | yes |
| 906-282 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 2003-07-28 | no | yes |
| 906-302 | INTERACTIVE SERVICES NETWORK, INC. | – | no | yes |
| 906-340 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 2026-03-05 | yes | yes |
| 906-342 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2026-03-09 | yes | yes |
| 906-396 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | no | yes |
| 906-448 | AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - MI | 2012-01-25 | yes | yes |
| 906-771 | BORDERLAND COMMUNICATIONS, LLC - MI | – | yes | yes |
| 906-774 | AT&T MICHIGAN BELL TEL CO | – | no | yes |
| 906-776 | AT&T MICHIGAN BELL TEL CO | – | yes | yes |
| 906-779 | AT&T MICHIGAN BELL TEL CO | – | yes | yes |
| 906-828 | 123.NET, LLC | 2004-10-11 | 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 |
|---|---|---|---|
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | Verizon | 4 | 26.7% |
| MICHIGAN BELL TEL CO | AT&T | 3 | 20% |
| NEW CINGULAR WIRELESS PCS, LLC - IL | AT&T | 2 | 13.3% |
| NUSO, LLC | – | 1 | 6.7% |
| NEW CELL DBA CELLCOM | Verizon | 1 | 6.7% |
| INTERACTIVE SERVICES NETWORK, INC. | – | 1 | 6.7% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - MI | AT&T | 1 | 6.7% |
| BORDERLAND COMMUNICATIONS, LLC - MI | – | 1 | 6.7% |
| 123.NET, LLC | – | 1 | 6.7% |
Frequently asked
Which prefixes belong to IRON MT in area code 906?
15 blocks: 200, 221, 239, 271, 282, 302, 340, 342, 396, 448, 771, 774 and 3 more, all listed in the table above.
Which carriers have numbers in IRON MT?
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (4 blocks), MICHIGAN BELL TEL CO (3 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (2 blocks), NUSO, LLC (1 block), NEW CELL DBA CELLCOM (1 block), INTERACTIVE SERVICES NETWORK, INC. (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is IRON MT 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.