IRONWOOD prefixes in area code 906
NANPA records 7 assigned NXX blocks to rate center IRONWOOD in area code 906, 1.9% 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. 6 holders hold those blocks, the largest being CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (2), INTERACTIVE SERVICES NETWORK, INC. (1), NEW CINGULAR WIRELESS PCS, LLC - IL (1). The earliest assignment on record here is 2003-07-28 and the most recent 2026-01-26. 5 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 |
|---|---|---|---|---|
| 906-285 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 2003-07-28 | yes | yes |
| 906-307 | INTERACTIVE SERVICES NETWORK, INC. | – | no | yes |
| 906-336 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 2026-01-26 | yes | yes |
| 906-364 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | – | yes | yes |
| 906-675 | PENINSULA FIBER NETWORK, LLC - MI | 2013-10-02 | yes | yes |
| 906-767 | T-Mobile OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2018-02-08 | yes | yes |
| 906-932 | AT&T MICHIGAN BELL TEL CO | – | no | 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 | 2 | 28.6% |
| INTERACTIVE SERVICES NETWORK, INC. | – | 1 | 14.3% |
| NEW CINGULAR WIRELESS PCS, LLC - IL | AT&T | 1 | 14.3% |
| PENINSULA FIBER NETWORK, LLC - MI | – | 1 | 14.3% |
| OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | T-Mobile | 1 | 14.3% |
| MICHIGAN BELL TEL CO | AT&T | 1 | 14.3% |
Frequently asked
Which prefixes belong to IRONWOOD in area code 906?
7 blocks: 285, 307, 336, 364, 675, 767, 932. The table above gives the holder of each.
Which carriers have numbers in IRONWOOD?
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (2 blocks), INTERACTIVE SERVICES NETWORK, INC. (1 block), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block), PENINSULA FIBER NETWORK, LLC - MI (1 block), OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (1 block), MICHIGAN BELL TEL CO (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is IRONWOOD 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.