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

CAMPTON prefixes in area code 603

NANPA records 3 assigned NXX blocks to rate center CAMPTON in area code 603, 0.4% of the 752 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. 2 holders hold those blocks, the largest being CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (2), BELL ATLANTIC MOBILE, INC (1). The earliest assignment on record here is 2008-01-22 and the most recent 2008-01-22. 3 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 606 – overlay codes cover the same geography, so a rate center is served by all of them.

3 assigned blocks – 0.4% of 603
2 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
603-236 Consolidated CONSOLIDATED COMM OF NO. NEW ENGLAND-NH – yes yes
603-726 Consolidated CONSOLIDATED COMM OF NO. NEW ENGLAND-NH – yes yes
603-960 BELL ATLANTIC MOBILE, INC 2008-01-22 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
CONSOLIDATED COMM OF NO. NEW ENGLAND-NH Consolidated 2 66.7%
BELL ATLANTIC MOBILE, INC – 1 33.3%

Frequently asked

Which prefixes belong to CAMPTON in area code 603?

3 blocks: 236, 726, 960. The table above gives the holder of each.

Which carriers have numbers in CAMPTON?

CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (2 blocks), BELL ATLANTIC MOBILE, INC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is CAMPTON 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 603

All 752 prefixes in 603