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

ONEIDA prefixes in area code 423

NANPA records 7 assigned NXX blocks to rate center ONEIDA in area code 423, 0.9% of the 764 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. 3 holders hold those blocks, the largest being NEW CINGULAR WIRELESS PCS, LLC - GA (4), HIGHLAND TEL. COOP, INC. (2), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN (1). The earliest assignment on record here is 2004-12-03 and the most recent 2024-12-12. 4 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 309, 315, 606, 680 – overlay codes cover the same geography, so a rate center is served by all of them.

7 assigned blocks – 0.9% of 423
3 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
423-215 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 2004-12-03 no yes
423-223 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2006-11-30 yes yes
423-286 HIGHLAND TEL. COOP, INC. – no yes
423-539 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA – yes yes
423-569 HIGHLAND TEL. COOP, INC. – no yes
423-577 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA – yes yes
423-918 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2024-12-12 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
NEW CINGULAR WIRELESS PCS, LLC - GA AT&T 4 57.1%
HIGHLAND TEL. COOP, INC. – 2 28.6%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN Verizon 1 14.3%

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 ONEIDA in area code 423?

7 blocks: 215, 223, 286, 539, 569, 577, 918. The table above gives the holder of each.

Which carriers have numbers in ONEIDA?

NEW CINGULAR WIRELESS PCS, LLC - GA (4 blocks), HIGHLAND TEL. COOP, INC. (2 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is ONEIDA 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 423

All 764 prefixes in 423