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

WIMBERLEY prefixes in area code 737

NANPA records 5 assigned NXX blocks to rate center WIMBERLEY in area code 737, 1.5% 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. 4 holders hold those blocks, the largest being ONVOY, LLC - TX (2), CENTURYLINK COMMUNICATIONS, LLC (1), HD CARRIER LLC (1). The earliest assignment on record here is 2017-09-19 and the most recent 2025-01-06. 5 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 code 512 – overlay codes cover the same geography, so a rate center is served by all of them.

5 assigned blocks – 1.5% of 737
4 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
737-227 Lumen CENTURYLINK COMMUNICATIONS, LLC 2017-09-19 yes yes
737-284 Onvoy ONVOY, LLC - TX 2021-01-08 yes yes
737-310 HD CARRIER LLC 2021-11-04 yes yes
737-316 Onvoy ONVOY, LLC - TX 2023-07-28 yes yes
737-407 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2025-01-06 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
ONVOY, LLC - TX Onvoy 2 40%
CENTURYLINK COMMUNICATIONS, LLC Lumen 1 20%
HD CARRIER LLC – 1 20%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 20%

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 WIMBERLEY in area code 737?

5 blocks: 227, 284, 310, 316, 407. The table above gives the holder of each.

Which carriers have numbers in WIMBERLEY?

ONVOY, LLC - TX (2 blocks), CENTURYLINK COMMUNICATIONS, LLC (1 block), HD CARRIER LLC (1 block), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is WIMBERLEY 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