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

GEORGETOWN prefixes in area code 737

NANPA records 21 assigned NXX blocks to rate center GEORGETOWN in area code 737, 6.3% of the 333 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 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (5), ONVOY, LLC - TX (4), BANDWIDTH.COM CLEC, LLC - TX (3). The earliest assignment on record here is 2013-03-04 and the most recent 2026-09-21. 21 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 203, 217, 229, 302 – overlay codes cover the same geography, so a rate center is served by all of them.

21 assigned blocks – 6.3% of 737
11 holders of record
21 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
737-215 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2016-01-11 yes yes
737-240 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2016-10-11 yes yes
737-245 Onvoy ONVOY, LLC - TX 2018-02-26 yes yes
737-253 Vonage VONAGE AMERICA LLC 2018-11-15 yes yes
737-275 Bandwidth BANDWIDTH.COM CLEC, LLC - TX 2020-09-08 yes yes
737-290 Bandwidth BANDWIDTH.COM CLEC, LLC - TX 2021-07-29 yes yes
737-314 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2022-01-26 yes yes
737-340 T-Mobile T-MOBILE USA, INC. 2022-10-03 yes yes
737-349 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2022-10-17 yes yes
737-356 FRACTEL, LLC 2019-05-21 yes yes
737-371 COMMIO, LLC 2023-12-20 yes yes
737-383 Onvoy ONVOY, LLC - TX 2024-04-02 yes yes
737-403 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 2024-11-14 yes yes
737-425 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2025-08-28 yes yes
737-441 Onvoy ONVOY, LLC - TX 2026-08-06 yes no
737-444 FOREMOST TELECOMMUNICATIONS CORPORATION - TX 2013-03-04 yes yes
737-445 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - TX 2026-09-21 yes no
737-667 FRACTEL, LLC 2020-06-18 yes yes
737-738 Onvoy ONVOY, LLC - TX 2021-02-02 yes yes
737-775 Charter ONVOY SPECTRUM, LLC 2024-01-10 yes yes
737-808 Bandwidth BANDWIDTH.COM CLEC, LLC - TX 2015-06-08 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
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX Verizon 5 23.8%
ONVOY, LLC - TX Onvoy 4 19%
BANDWIDTH.COM CLEC, LLC - TX Bandwidth 3 14.3%
FRACTEL, LLC – 2 9.5%
VONAGE AMERICA LLC Vonage 1 4.8%
T-MOBILE USA, INC. T-Mobile 1 4.8%
COMMIO, LLC – 1 4.8%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 4.8%
FOREMOST TELECOMMUNICATIONS CORPORATION - TX – 1 4.8%
TELEPORT COMMUNICATIONS AMERICA, LLC - TX AT&T 1 4.8%
ONVOY SPECTRUM, LLC Charter 1 4.8%

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 GEORGETOWN in area code 737?

21 blocks: 215, 240, 245, 253, 275, 290, 314, 340, 349, 356, 371, 383 and 9 more, all listed in the table above.

Which carriers have numbers in GEORGETOWN?

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX (5 blocks), ONVOY, LLC - TX (4 blocks), BANDWIDTH.COM CLEC, LLC - TX (3 blocks), FRACTEL, LLC (2 blocks), VONAGE AMERICA LLC (1 block), T-MOBILE USA, 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 GEORGETOWN 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 737

All 333 prefixes in 737