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

SNGBLCNN prefixes in area code 626

NANPA records 12 assigned NXX blocks to rate center SNGBLCNN in area code 626, 1.6% of the 737 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. 12 holders hold those blocks, the largest being NORTH COUNTY COMMUNICATION CORPORATION - CA (1), PAETEC ITEL, LLC (1), UTILITY TELECOM GROUP, LLC - CA (1). The earliest assignment on record here is 2002-09-19 and the most recent 2023-04-12. 11 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

12 assigned blocks – 1.6% of 626
12 holders of record
11 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
626-368 NORTH COUNTY COMMUNICATION CORPORATION - CA – no yes
626-410 Windstream PAETEC ITEL, LLC – yes yes
626-439 UTILITY TELECOM GROUP, LLC - CA – yes yes
626-467 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA – yes yes
626-508 Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA – yes yes
626-515 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA – yes yes
626-603 Onvoy ONVOY, LLC - CA – yes yes
626-687 Charter ONVOY SPECTRUM, LLC 2023-04-12 yes yes
626-731 T-Mobile T-MOBILE USA, INC. 2002-09-19 yes yes
626-779 IP HORIZON LLC – yes yes
626-887 FRACTEL, LLC 2020-12-28 yes yes
626-910 Frontier FRONTIER CALIFORNIA INC. – 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
NORTH COUNTY COMMUNICATION CORPORATION - CA – 1 8.3%
PAETEC ITEL, LLC Windstream 1 8.3%
UTILITY TELECOM GROUP, LLC - CA – 1 8.3%
LEVEL 3 COMMUNICATIONS, LLC - CA Lumen 1 8.3%
LEVEL 3 TELECOM OF CALIFORNIA, LP - CA Lumen 1 8.3%
TELEPORT COMMUNICATIONS AMERICA, LLC - CA AT&T 1 8.3%
ONVOY, LLC - CA Onvoy 1 8.3%
ONVOY SPECTRUM, LLC Charter 1 8.3%
T-MOBILE USA, INC. T-Mobile 1 8.3%
IP HORIZON LLC – 1 8.3%
FRACTEL, LLC – 1 8.3%
FRONTIER CALIFORNIA INC. Frontier 1 8.3%

Frequently asked

Which prefixes belong to SNGBLCNN in area code 626?

12 blocks: 368, 410, 439, 467, 508, 515, 603, 687, 731, 779, 887, 910. The table above gives the holder of each.

Which carriers have numbers in SNGBLCNN?

NORTH COUNTY COMMUNICATION CORPORATION - CA (1 block), PAETEC ITEL, LLC (1 block), UTILITY TELECOM GROUP, LLC - CA (1 block), LEVEL 3 COMMUNICATIONS, LLC - CA (1 block), LEVEL 3 TELECOM OF CALIFORNIA, LP - CA (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - CA (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is SNGBLCNN 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 626

All 737 prefixes in 626