NumberingData
Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records

IRON RIVER prefixes in area code 906

NANPA records 6 assigned NXX blocks to rate center IRON RIVER in area code 906, 1.7% 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 LEVEL 3 COMMUNICATIONS, LLC - MI (1), MICHIGAN BELL TEL CO (1), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (1). The earliest assignment on record here is 2003-07-28 and the most recent 2021-01-06. 5 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 534, 715 – overlay codes cover the same geography, so a rate center is served by all of them.

6 assigned blocks – 1.7% of 906
6 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
906-214 Lumen LEVEL 3 COMMUNICATIONS, LLC - MI 2005-02-25 yes yes
906-265 AT&T MICHIGAN BELL TEL CO – yes yes
906-284 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 2003-07-28 yes yes
906-308 INTERACTIVE SERVICES NETWORK, INC. – no yes
906-367 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
906-999 Onvoy ONVOY, LLCV - MI 2021-01-06 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

HolderBrandBlocksShare here
LEVEL 3 COMMUNICATIONS, LLC - MI Lumen 1 16.7%
MICHIGAN BELL TEL CO AT&T 1 16.7%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI Verizon 1 16.7%
INTERACTIVE SERVICES NETWORK, INC. – 1 16.7%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 16.7%
ONVOY, LLCV - MI Onvoy 1 16.7%

Frequently asked

Which prefixes belong to IRON RIVER in area code 906?

6 blocks: 214, 265, 284, 308, 367, 999. The table above gives the holder of each.

Which carriers have numbers in IRON RIVER?

LEVEL 3 COMMUNICATIONS, LLC - MI (1 block), MICHIGAN BELL TEL CO (1 block), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI (1 block), INTERACTIVE SERVICES NETWORK, INC. (1 block), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block), ONVOY, LLCV - MI (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 RIVER 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.

Other rate centers in 906

All 360 prefixes in 906