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

GOFFSTOWN prefixes in area code 603

NANPA records 4 assigned NXX blocks to rate center GOFFSTOWN in area code 603, 0.5% 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. 4 holders hold those blocks, the largest being MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH (1), COMCAST IP PHONE, LLC (1), CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (1). The earliest assignment on record here is 2002-02-22 and the most recent 2002-02-22. 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

4 assigned blocks – 0.5% of 603
4 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
603-351 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH – yes yes
603-384 Comcast COMCAST IP PHONE, LLC – yes yes
603-497 Consolidated CONSOLIDATED COMM OF NO. NEW ENGLAND-NH – yes yes
603-660 BELL ATLANTIC MOBILE, INC 2002-02-22 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
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH Verizon 1 25%
COMCAST IP PHONE, LLC Comcast 1 25%
CONSOLIDATED COMM OF NO. NEW ENGLAND-NH Consolidated 1 25%
BELL ATLANTIC MOBILE, INC – 1 25%

Frequently asked

Which prefixes belong to GOFFSTOWN in area code 603?

4 blocks: 351, 384, 497, 660. The table above gives the holder of each.

Which carriers have numbers in GOFFSTOWN?

MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH (1 block), COMCAST IP PHONE, LLC (1 block), CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (1 block), 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 GOFFSTOWN 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