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

PESCADERO prefixes in area code 650

NANPA records 11 assigned NXX blocks to rate center PESCADERO in area code 650, 1.5% of the 717 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. 7 holders hold those blocks, the largest being LEVEL 3 COMMUNICATIONS, LLC - CA (3), ONVOY, LLC - CA (3), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (1). The earliest assignment on record here is 2016-06-10 and the most recent 2016-06-10. 11 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

11 assigned blocks – 1.5% of 650
7 holders of record
11 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
650-262 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA – yes yes
650-268 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
650-297 Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA – yes yes
650-337 Onvoy ONVOY, LLC - CA – yes yes
650-456 Onvoy ONVOY, LLC - CA – yes yes
650-538 TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS – yes yes
650-836 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA 2016-06-10 yes yes
650-860 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA – yes yes
650-879 AT&T PACIFIC BELL – yes yes
650-881 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA – yes yes
650-882 Onvoy ONVOY, LLC - CA – 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
LEVEL 3 COMMUNICATIONS, LLC - CA Lumen 3 27.3%
ONVOY, LLC - CA Onvoy 3 27.3%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 1 9.1%
LEVEL 3 TELECOM OF CALIFORNIA, LP - CA Lumen 1 9.1%
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS TPx 1 9.1%
PACIFIC BELL AT&T 1 9.1%
TELEPORT COMMUNICATIONS AMERICA, LLC - CA AT&T 1 9.1%

Frequently asked

Which prefixes belong to PESCADERO in area code 650?

11 blocks: 262, 268, 297, 337, 456, 538, 836, 860, 879, 881, 882. The table above gives the holder of each.

Which carriers have numbers in PESCADERO?

LEVEL 3 COMMUNICATIONS, LLC - CA (3 blocks), ONVOY, LLC - CA (3 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (1 block), LEVEL 3 TELECOM OF CALIFORNIA, LP - CA (1 block), U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS (1 block), PACIFIC 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 PESCADERO 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 650

All 717 prefixes in 650