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

VERNON prefixes in area code 940

NANPA records 9 assigned NXX blocks to rate center VERNON in area code 940, 1.8% of the 506 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 LEVEL 3 COMMUNICATIONS, LLC - TX (2), SOUTHWESTERN BELL (2), NUSO, LLC (1). The earliest assignment on record here is 2002-07-19 and the most recent 2023-02-16. 8 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 205, 315, 435, 448 – overlay codes cover the same geography, so a rate center is served by all of them.

9 assigned blocks – 1.8% of 940
7 holders of record
8 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
940-223 NUSO, LLC 2023-02-16 yes yes
940-225 WEB FIRE COMMUNICATIONS, INC. - TX 2002-09-16 no yes
940-227 Lumen LEVEL 3 COMMUNICATIONS, LLC - TX 2002-07-19 yes yes
940-292 Bandwidth BANDWIDTH.COM CLEC, LLC - TX 2019-07-01 yes yes
940-424 Telnyx TELNYX LLC 2021-05-19 yes yes
940-473 T-Mobile T-MOBILE USA, INC. 2005-06-23 yes yes
940-552 AT&T SOUTHWESTERN BELL – yes yes
940-553 AT&T SOUTHWESTERN BELL – yes yes
940-647 Lumen LEVEL 3 COMMUNICATIONS, LLC - TX 2006-07-12 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 - TX Lumen 2 22.2%
SOUTHWESTERN BELL AT&T 2 22.2%
NUSO, LLC – 1 11.1%
WEB FIRE COMMUNICATIONS, INC. - TX – 1 11.1%
BANDWIDTH.COM CLEC, LLC - TX Bandwidth 1 11.1%
TELNYX LLC Telnyx 1 11.1%
T-MOBILE USA, INC. T-Mobile 1 11.1%

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 VERNON in area code 940?

9 blocks: 223, 225, 227, 292, 424, 473, 552, 553, 647. The table above gives the holder of each.

Which carriers have numbers in VERNON?

LEVEL 3 COMMUNICATIONS, LLC - TX (2 blocks), SOUTHWESTERN BELL (2 blocks), NUSO, LLC (1 block), WEB FIRE COMMUNICATIONS, INC. - TX (1 block), BANDWIDTH.COM CLEC, LLC - TX (1 block), TELNYX 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 VERNON 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 940

All 506 prefixes in 940