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

CALIPATRIA prefixes in area code 760

NANPA records 5 assigned NXX blocks to rate center CALIPATRIA in area code 760, 0.6% of the 785 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. 3 holders hold those blocks, the largest being PACIFIC BELL (3), ONVOY, LLC - CA (1), IP HORIZON LLC (1). 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 442 – overlay codes cover the same geography, so a rate center is served by all of them.

5 assigned blocks – 0.6% of 760
3 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
760-348 AT&T PACIFIC BELL – yes yes
760-354 AT&T PACIFIC BELL – yes yes
760-359 AT&T PACIFIC BELL – yes yes
760-502 Onvoy ONVOY, LLC - CA – yes yes
760-624 IP HORIZON LLC – 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
PACIFIC BELL AT&T 3 60%
ONVOY, LLC - CA Onvoy 1 20%
IP HORIZON LLC – 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 CALIPATRIA in area code 760?

5 blocks: 348, 354, 359, 502, 624. The table above gives the holder of each.

Which carriers have numbers in CALIPATRIA?

PACIFIC BELL (3 blocks), ONVOY, LLC - CA (1 block), IP HORIZON 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 CALIPATRIA 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 760

All 785 prefixes in 760