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

WILLITS prefixes in area code 707

NANPA records 8 assigned NXX blocks to rate center WILLITS in area code 707, 1.0% 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. 5 holders hold those blocks, the largest being UNITED STATES CELLULAR - CA (2), ONVOY, LLC - CA (2), PACIFIC BELL (2). The earliest assignment on record here is 2002-04-15 and the most recent 2019-08-26. 7 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

8 assigned blocks – 1% of 707
5 holders of record
7 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
707-354 UNITED STATES CELLULAR - CA – yes yes
707-370 Onvoy ONVOY, LLC - CA – yes yes
707-371 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA – yes yes
707-456 AT&T PACIFIC BELL – yes yes
707-459 AT&T PACIFIC BELL – no yes
707-518 Onvoy ONVOY, LLC - CA – yes yes
707-680 UNITED STATES CELLULAR - CA 2019-08-26 yes yes
707-841 AT&T NEW CINGULAR WIRELESS PCS, LLC 2002-04-15 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
UNITED STATES CELLULAR - CA – 2 25%
ONVOY, LLC - CA Onvoy 2 25%
PACIFIC BELL AT&T 2 25%
LEVEL 3 COMMUNICATIONS, LLC - CA Lumen 1 12.5%
NEW CINGULAR WIRELESS PCS, LLC AT&T 1 12.5%

Frequently asked

Which prefixes belong to WILLITS in area code 707?

8 blocks: 354, 370, 371, 456, 459, 518, 680, 841. The table above gives the holder of each.

Which carriers have numbers in WILLITS?

UNITED STATES CELLULAR - CA (2 blocks), ONVOY, LLC - CA (2 blocks), PACIFIC BELL (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - CA (1 block), NEW CINGULAR WIRELESS PCS, 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 WILLITS 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 707

All 785 prefixes in 707