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

BAYSIDE prefixes in area code 361

NANPA records 4 assigned NXX blocks to rate center BAYSIDE in area code 361, 0.7% of the 538 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 STPCS JOINT VENTURE, LLC (1), ONVOY, LLC - TX (1), AT&T ENTERPRISES, LLC (1). The earliest assignment on record here is 2008-10-24 and the most recent 2008-10-24. 3 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

4 assigned blocks – 0.7% of 361
4 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
361-247 STPCS JOINT VENTURE, LLC – yes yes
361-326 Onvoy ONVOY, LLC - TX – no yes
361-454 AT&T AT&T ENTERPRISES, LLC 2008-10-24 yes yes
361-529 AT&T SOUTHWESTERN BELL – 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
STPCS JOINT VENTURE, LLC – 1 25%
ONVOY, LLC - TX Onvoy 1 25%
AT&T ENTERPRISES, LLC AT&T 1 25%
SOUTHWESTERN BELL AT&T 1 25%

Frequently asked

Which prefixes belong to BAYSIDE in area code 361?

4 blocks: 247, 326, 454, 529. The table above gives the holder of each.

Which carriers have numbers in BAYSIDE?

STPCS JOINT VENTURE, LLC (1 block), ONVOY, LLC - TX (1 block), AT&T ENTERPRISES, LLC (1 block), SOUTHWESTERN BELL (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is BAYSIDE 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 361

All 538 prefixes in 361