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

TRENTON prefixes in area code 660

NANPA records 6 assigned NXX blocks to rate center TRENTON in area code 660, 1.2% of the 518 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. 4 holders hold those blocks, the largest being SOUTHWESTERN BELL (3), TELEPORT COMMUNICATIONS AMERICA, LLC - MO (1), NEW CINGULAR WIRELESS PCS, LLC - IL (1). The earliest assignment on record here is 2005-02-24 and the most recent 2005-02-24. 6 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 252, 270, 283, 308 – overlay codes cover the same geography, so a rate center is served by all of them.

6 assigned blocks – 1.2% of 660
4 holders of record
6 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
660-339 AT&T SOUTHWESTERN BELL – yes yes
660-357 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - MO – yes yes
660-358 AT&T SOUTHWESTERN BELL – yes yes
660-359 AT&T SOUTHWESTERN BELL – yes yes
660-635 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL – yes yes
660-654 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 2005-02-24 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
SOUTHWESTERN BELL AT&T 3 50%
TELEPORT COMMUNICATIONS AMERICA, LLC - MO AT&T 1 16.7%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 16.7%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO Verizon 1 16.7%

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 TRENTON in area code 660?

6 blocks: 339, 357, 358, 359, 635, 654. The table above gives the holder of each.

Which carriers have numbers in TRENTON?

SOUTHWESTERN BELL (3 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - MO (1 block), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is TRENTON 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 660

All 518 prefixes in 660