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

BULVERDE prefixes in area code 830

NANPA records 6 assigned NXX blocks to rate center BULVERDE in area code 830, 1.2% of the 496 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. 5 holders hold those blocks, the largest being GUADALUPE VALLEY TEL. COOP., INC. (2), NEW CINGULAR WIRELESS PCS, LLC - IL (1), ONVOY, LLC - TX (1). The earliest assignment on record here is 2020-03-10 and the most recent 2024-10-29. 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

6 assigned blocks – 1.2% of 830
5 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
830-252 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2020-03-10 yes yes
830-380 Onvoy ONVOY, LLC - TX 2021-12-08 yes yes
830-438 GUADALUPE VALLEY TEL. COOP., INC. – no yes
830-714 Charter TWC IP ENABLED SERVICES, LLC – yes yes
830-835 Twilio TWILIO INTERNATIONAL, INC. 2024-10-29 yes yes
830-980 GUADALUPE VALLEY TEL. COOP., INC. – no 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
GUADALUPE VALLEY TEL. COOP., INC. – 2 33.3%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 16.7%
ONVOY, LLC - TX Onvoy 1 16.7%
TWC IP ENABLED SERVICES, LLC Charter 1 16.7%
TWILIO INTERNATIONAL, INC. Twilio 1 16.7%

Frequently asked

Which prefixes belong to BULVERDE in area code 830?

6 blocks: 252, 380, 438, 714, 835, 980. The table above gives the holder of each.

Which carriers have numbers in BULVERDE?

GUADALUPE VALLEY TEL. COOP., INC. (2 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block), ONVOY, LLC - TX (1 block), TWC IP ENABLED SERVICES, LLC (1 block), TWILIO INTERNATIONAL, 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 BULVERDE 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 830

All 496 prefixes in 830