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

FELTON prefixes in area code 831

NANPA records 9 assigned NXX blocks to rate center FELTON in area code 831, 2.2% of the 406 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 ONVOY, LLC - CA (3), TELEPORT COMMUNICATIONS AMERICA, LLC - CA (1), U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS (1). The earliest assignment on record here is 2016-07-15 and the most recent 2020-12-21. 8 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 codes 218, 302 – overlay codes cover the same geography, so a rate center is served by all of them.

9 assigned blocks – 2.2% of 831
7 holders of record
8 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
831-216 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA – yes yes
831-222 TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS – yes yes
831-268 Onvoy ONVOY, LLC - CA 2016-07-15 yes yes
831-335 AT&T PACIFIC BELL – no yes
831-508 IP HORIZON LLC – yes yes
831-534 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
831-699 FRACTEL, LLC 2020-12-21 yes yes
831-704 Onvoy ONVOY, LLC - CA – yes yes
831-850 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
ONVOY, LLC - CA Onvoy 3 33.3%
TELEPORT COMMUNICATIONS AMERICA, LLC - CA AT&T 1 11.1%
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS TPx 1 11.1%
PACIFIC BELL AT&T 1 11.1%
IP HORIZON LLC – 1 11.1%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 1 11.1%
FRACTEL, LLC – 1 11.1%

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 FELTON in area code 831?

9 blocks: 216, 222, 268, 335, 508, 534, 699, 704, 850. The table above gives the holder of each.

Which carriers have numbers in FELTON?

ONVOY, LLC - CA (3 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - CA (1 block), U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS (1 block), PACIFIC BELL (1 block), IP HORIZON LLC (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES 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 FELTON 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 831

All 406 prefixes in 831