WOLVERINE prefixes in area code 231
NANPA records 5 assigned NXX blocks to rate center WOLVERINE in area code 231, 0.9% of the 572 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. 5 holders hold those blocks, the largest being INTERACTIVE SERVICES NETWORK, INC. (1), ONVOY, LLCV - MI (1), MICHIGAN BELL TEL CO (1). The earliest assignment on record here is 2002-08-27 and the most recent 2021-06-25. 3 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 |
|---|---|---|---|---|
| 231-365 | INTERACTIVE SERVICES NETWORK, INC. | – | no | yes |
| 231-367 | Onvoy ONVOY, LLCV - MI | 2021-06-25 | yes | yes |
| 231-525 | AT&T MICHIGAN BELL TEL CO | – | yes | yes |
| 231-833 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2005-04-11 | yes | yes |
| 231-874 | 123.NET, LLC | 2002-08-27 | 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 |
|---|---|---|---|
| INTERACTIVE SERVICES NETWORK, INC. | – | 1 | 20% |
| ONVOY, LLCV - MI | Onvoy | 1 | 20% |
| MICHIGAN BELL TEL CO | AT&T | 1 | 20% |
| NEW CINGULAR WIRELESS PCS, LLC - IL | AT&T | 1 | 20% |
| 123.NET, LLC | – | 1 | 20% |
Frequently asked
Which prefixes belong to WOLVERINE in area code 231?
5 blocks: 365, 367, 525, 833, 874. The table above gives the holder of each.
Which carriers have numbers in WOLVERINE?
INTERACTIVE SERVICES NETWORK, INC. (1 block), ONVOY, LLCV - MI (1 block), MICHIGAN BELL TEL CO (1 block), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block), 123.NET, LLC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is WOLVERINE 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.