HELENA prefixes in area code 406
NANPA records 38 assigned NXX blocks to rate center HELENA in area code 406, 5.0% 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. 11 holders hold those blocks, the largest being QWEST CORPORATION (14), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT (7), CHARTER IP ENABLED SERVICES, LLC (4). The earliest assignment on record here is 2001-04-18 and the most recent 2017-03-24. 27 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 419, 567, 580, 816 – 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 |
|---|---|---|---|---|
| 406-202 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2001-04-18 | yes | yes |
| 406-204 | Lumen LEVEL 3 COMMUNICATIONS, LLC - MT | – | yes | yes |
| 406-227 | Lumen QWEST CORPORATION | – | no | yes |
| 406-324 | Lumen QWEST CORPORATION | – | yes | yes |
| 406-389 | Lumen CENTURYLINK COMMUNICATIONS, LLC | 2013-09-18 | yes | yes |
| 406-410 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | – | yes | yes |
| 406-417 | AT&T NEW CINGULAR WIRELESS PCS, LLC | 2008-05-28 | yes | yes |
| 406-422 | Charter CHARTER IP ENABLED SERVICES, LLC | – | yes | yes |
| 406-430 | Onvoy ONVOY, LLC - MT | – | yes | yes |
| 406-431 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | – | no | yes |
| 406-437 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2004-07-27 | yes | yes |
| 406-438 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | 2014-02-06 | yes | yes |
| 406-439 | AT&T NEW CINGULAR WIRELESS PCS, LLC | – | yes | yes |
| 406-440 | 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT | 2005-07-01 | yes | yes |
| 406-441 | Lumen QWEST CORPORATION | – | no | yes |
| 406-442 | Lumen QWEST CORPORATION | – | no | yes |
| 406-443 | Lumen QWEST CORPORATION | – | no | yes |
| 406-444 | Lumen QWEST CORPORATION | – | no | yes |
| 406-447 | Lumen QWEST CORPORATION | – | yes | yes |
| 406-449 | Lumen QWEST CORPORATION | – | no | yes |
| 406-457 | Lumen QWEST CORPORATION | – | yes | yes |
| 406-458 | Lumen QWEST CORPORATION | – | yes | yes |
| 406-459 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | – | no | yes |
| 406-461 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | – | no | yes |
| 406-465 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | – | no | yes |
| 406-475 | Lumen QWEST CORPORATION | – | yes | yes |
| 406-495 | Lumen QWEST CORPORATION | – | yes | yes |
| 406-502 | Charter CHARTER IP ENABLED SERVICES, LLC | 2012-04-03 | yes | yes |
| 406-513 | Charter CHARTER IP ENABLED SERVICES, LLC | 2008-04-08 | yes | yes |
| 406-558 | Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 2002-06-19 | yes | yes |
| 406-594 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | – | no | yes |
| 406-603 | BLACKFOOT COMMUNICATIONS, INC. - MT | 2013-11-08 | yes | yes |
| 406-634 | Onvoy ONVOY, LLC - MT | – | yes | yes |
| 406-841 | Lumen QWEST CORPORATION | – | yes | yes |
| 406-916 | T-Mobile T-MOBILE USA, INC. | 2017-03-24 | yes | yes |
| 406-933 | Lumen QWEST CORPORATION | – | yes | yes |
| 406-992 | Onvoy ONVOY, LLC - MT | 2008-08-26 | yes | yes |
| 406-996 | Charter CHARTER IP ENABLED SERVICES, LLC | 2011-01-10 | 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 | 14 | 36.8% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT | Verizon | 7 | 18.4% |
| CHARTER IP ENABLED SERVICES, LLC | Charter | 4 | 10.5% |
| NEW CINGULAR WIRELESS PCS, LLC | AT&T | 3 | 7.9% |
| ONVOY, LLC - MT | Onvoy | 3 | 7.9% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Verizon | 2 | 5.3% |
| LEVEL 3 COMMUNICATIONS, LLC - MT | Lumen | 1 | 2.6% |
| CENTURYLINK COMMUNICATIONS, LLC | Lumen | 1 | 2.6% |
| 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT | – | 1 | 2.6% |
| BLACKFOOT COMMUNICATIONS, INC. - MT | – | 1 | 2.6% |
| T-MOBILE USA, INC. | T-Mobile | 1 | 2.6% |
Same rate center in other codes
Overlay codes cover the same geography, so one rate center is served by all of them.
Frequently asked
Which prefixes belong to HELENA in area code 406?
38 blocks: 202, 204, 227, 324, 389, 410, 417, 422, 430, 431, 437, 438 and 26 more, all listed in the table above.
Which carriers have numbers in HELENA?
QWEST CORPORATION (14 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT (7 blocks), CHARTER IP ENABLED SERVICES, LLC (4 blocks), NEW CINGULAR WIRELESS PCS, LLC (3 blocks), ONVOY, LLC - MT (3 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (2 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is HELENA 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.