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

WINTERS prefixes in area code 530

NANPA records 5 assigned NXX blocks to rate center WINTERS in area code 530, 0.6% of the 782 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 ONVOY, LLC - CA (1), TELNYX LLC (1), TELEPORT COMMUNICATIONS AMERICA, LLC - CA (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 325 – overlay codes cover the same geography, so a rate center is served by all of them.

5 assigned blocks – 0.6% of 530
5 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
530-212 Onvoy ONVOY, LLC - CA – yes yes
530-504 Telnyx TELNYX LLC – yes yes
530-505 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA – yes yes
530-794 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA – yes yes
530-795 AT&T PACIFIC BELL – 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
ONVOY, LLC - CA Onvoy 1 20%
TELNYX LLC Telnyx 1 20%
TELEPORT COMMUNICATIONS AMERICA, LLC - CA AT&T 1 20%
LEVEL 3 COMMUNICATIONS, LLC - CA Lumen 1 20%
PACIFIC BELL AT&T 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 WINTERS in area code 530?

5 blocks: 212, 504, 505, 794, 795. The table above gives the holder of each.

Which carriers have numbers in WINTERS?

ONVOY, LLC - CA (1 block), TELNYX LLC (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - CA (1 block), LEVEL 3 COMMUNICATIONS, LLC - CA (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 WINTERS 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 530

All 782 prefixes in 530