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

ENCINAL prefixes in area code 956

NANPA records 4 assigned NXX blocks to rate center ENCINAL in area code 956, 0.5% of the 735 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 AT&T ENTERPRISES, LLC (1), PEERLESS NETWORK OF TEXAS, LLC - TX (1), SOUTHWESTERN BELL (1). The earliest assignment on record here is 2007-03-07 and the most recent 2021-01-25. 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

4 assigned blocks – 0.5% of 956
4 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
956-628 AT&T AT&T ENTERPRISES, LLC 2007-03-07 yes yes
956-758 Peerless PEERLESS NETWORK OF TEXAS, LLC - TX – yes yes
956-948 AT&T SOUTHWESTERN BELL – yes yes
956-964 Charter ONVOY SPECTRUM, LLC 2021-01-25 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
AT&T ENTERPRISES, LLC AT&T 1 25%
PEERLESS NETWORK OF TEXAS, LLC - TX Peerless 1 25%
SOUTHWESTERN BELL AT&T 1 25%
ONVOY SPECTRUM, LLC Charter 1 25%

Frequently asked

Which prefixes belong to ENCINAL in area code 956?

4 blocks: 628, 758, 948, 964. The table above gives the holder of each.

Which carriers have numbers in ENCINAL?

AT&T ENTERPRISES, LLC (1 block), PEERLESS NETWORK OF TEXAS, LLC - TX (1 block), SOUTHWESTERN BELL (1 block), ONVOY SPECTRUM, 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 ENCINAL 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 956

All 735 prefixes in 956