BUTTE prefixes in area code 406
NANPA records 17 assigned NXX blocks to rate center BUTTE in area code 406, 2.3% of the 754 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. 7 holders hold those blocks, the largest being QWEST CORPORATION (6), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT (3), ONVOY, LLC - MT (2). The earliest assignment on record here is 2002-06-19 and the most recent 2021-04-18. 12 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 402, 531, 701 – 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 |
|---|---|---|---|---|
| 406-221 | Onvoy ONVOY, LLC - MT | 2003-02-13 | yes | yes |
| 406-299 | Lumen LEVEL 3 COMMUNICATIONS, LLC - MT | 2003-01-23 | yes | yes |
| 406-310 | BLACKFOOT COMMUNICATIONS, INC. - MT | – | yes | yes |
| 406-479 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 2013-10-03 | yes | yes |
| 406-490 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | – | no | yes |
| 406-491 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | yes | yes |
| 406-494 | Lumen QWEST CORPORATION | – | no | yes |
| 406-496 | Lumen QWEST CORPORATION | – | yes | yes |
| 406-497 | Lumen QWEST CORPORATION | – | yes | yes |
| 406-498 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | – | no | yes |
| 406-533 | Lumen QWEST CORPORATION | – | yes | yes |
| 406-565 | Lumen LEVEL 3 COMMUNICATIONS, LLC - MT | 2002-06-19 | yes | yes |
| 406-593 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | yes | yes |
| 406-605 | Telnyx TELNYX LLC | 2021-04-18 | yes | yes |
| 406-723 | Lumen QWEST CORPORATION | – | no | yes |
| 406-782 | Lumen QWEST CORPORATION | – | no | yes |
| 406-792 | Onvoy ONVOY, LLC - MT | – | 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 |
|---|---|---|---|
| QWEST CORPORATION | Lumen | 6 | 35.3% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | Verizon | 3 | 17.6% |
| ONVOY, LLC - MT | Onvoy | 2 | 11.8% |
| LEVEL 3 COMMUNICATIONS, LLC - MT | Lumen | 2 | 11.8% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 2 | 11.8% |
| BLACKFOOT COMMUNICATIONS, INC. - MT | – | 1 | 5.9% |
| TELNYX LLC | Telnyx | 1 | 5.9% |
Frequently asked
Which prefixes belong to BUTTE in area code 406?
17 blocks: 221, 299, 310, 479, 490, 491, 494, 496, 497, 498, 533, 565 and 5 more, all listed in the table above.
Which carriers have numbers in BUTTE?
QWEST CORPORATION (6 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT (3 blocks), ONVOY, LLC - MT (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - MT (2 blocks), NEW CINGULAR WIRELESS PCS, LLC (2 blocks), BLACKFOOT COMMUNICATIONS, INC. - MT (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is BUTTE 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.