PORTARTHUR prefixes in area code 409
NANPA records 28 assigned NXX blocks to rate center PORTARTHUR in area code 409, 6.5% of the 434 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 SOUTHWESTERN BELL (9), AERIAL COMMUNICATIONS, INC. (6), TWC IP ENABLED SERVICES, LLC (3). The earliest assignment on record here is 2001-03-14 and the most recent 2025-04-16. 24 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 |
|---|---|---|---|---|
| 409-217 | Charter TWC IP ENABLED SERVICES, LLC | – | yes | yes |
| 409-248 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 2019-04-05 | yes | yes |
| 409-250 | T-Mobile AERIAL COMMUNICATIONS, INC. | 2019-10-18 | yes | yes |
| 409-280 | TERRA NOVA TELECOM INC. | – | yes | yes |
| 409-282 | Onvoy ONVOY, LLC - TX | 2021-11-02 | yes | yes |
| 409-293 | Lumen LEVEL 3 COMMUNICATIONS, LLC - TX | 2002-06-13 | yes | yes |
| 409-300 | Charter TWC IP ENABLED SERVICES, LLC | 2010-11-23 | yes | yes |
| 409-304 | NUSO, LLC | 2023-02-16 | yes | yes |
| 409-332 | Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 2003-07-16 | yes | yes |
| 409-365 | T-Mobile AERIAL COMMUNICATIONS, INC. | 2001-12-27 | yes | yes |
| 409-369 | Onvoy ONVOY, LLC - TX | 2025-04-16 | yes | yes |
| 409-433 | AT&T NEW CINGULAR WIRELESS PCS, LLC - IL | 2008-05-27 | yes | yes |
| 409-460 | T-Mobile AERIAL COMMUNICATIONS, INC. | – | yes | yes |
| 409-543 | T-Mobile AERIAL COMMUNICATIONS, INC. | 2001-03-14 | yes | yes |
| 409-546 | TON80 COMMUNICATIONS, LLC | 2022-02-22 | yes | yes |
| 409-548 | Charter TWC IP ENABLED SERVICES, LLC | 2002-08-26 | yes | yes |
| 409-549 | T-Mobile AERIAL COMMUNICATIONS, INC. | 2002-05-16 | yes | yes |
| 409-566 | T-Mobile AERIAL COMMUNICATIONS, INC. | 2003-03-18 | yes | yes |
| 409-736 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 409-960 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 409-962 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 409-963 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 409-982 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 409-983 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 409-984 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 409-985 | AT&T SOUTHWESTERN BELL | – | no | yes |
| 409-989 | AT&T SOUTHWESTERN BELL | – | yes | yes |
| 409-999 | FOREMOST TELECOMMUNICATIONS CORPORATION - TX | 2013-10-23 | 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 |
|---|---|---|---|
| SOUTHWESTERN BELL | AT&T | 9 | 32.1% |
| AERIAL COMMUNICATIONS, INC. | T-Mobile | 6 | 21.4% |
| TWC IP ENABLED SERVICES, LLC | Charter | 3 | 10.7% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | Verizon | 2 | 7.1% |
| ONVOY, LLC - TX | Onvoy | 2 | 7.1% |
| TERRA NOVA TELECOM INC. | – | 1 | 3.6% |
| LEVEL 3 COMMUNICATIONS, LLC - TX | Lumen | 1 | 3.6% |
| NUSO, LLC | – | 1 | 3.6% |
| NEW CINGULAR WIRELESS PCS, LLC - IL | AT&T | 1 | 3.6% |
| TON80 COMMUNICATIONS, LLC | – | 1 | 3.6% |
| FOREMOST TELECOMMUNICATIONS CORPORATION - TX | – | 1 | 3.6% |
Frequently asked
Which prefixes belong to PORTARTHUR in area code 409?
28 blocks: 217, 248, 250, 280, 282, 293, 300, 304, 332, 365, 369, 433 and 16 more, all listed in the table above.
Which carriers have numbers in PORTARTHUR?
SOUTHWESTERN BELL (9 blocks), AERIAL COMMUNICATIONS, INC. (6 blocks), TWC IP ENABLED SERVICES, LLC (3 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (2 blocks), ONVOY, LLC - TX (2 blocks), TERRA NOVA TELECOM INC. (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.
Is PORTARTHUR 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.