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

PETERBROGH prefixes in area code 603

NANPA records 6 assigned NXX blocks to rate center PETERBROGH in area code 603, 0.8% 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. 6 holders hold those blocks, the largest being PAETEC ITEL, LLC (1), UNITED STATES CELLULAR - NH (1), LEVEL 3 COMMUNICATIONS, LLC - NH (1). 5 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

6 assigned blocks – 0.8% of 603
6 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
603-371 Windstream PAETEC ITEL, LLC – yes yes
603-562 UNITED STATES CELLULAR - NH – yes yes
603-567 Lumen LEVEL 3 COMMUNICATIONS, LLC - NH – yes yes
603-784 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH – yes yes
603-924 Consolidated CONSOLIDATED COMM OF NO. NEW ENGLAND-NH – no yes
603-925 FREEDOM RING COMMUNICATIONS, LLC – 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
PAETEC ITEL, LLC Windstream 1 16.7%
UNITED STATES CELLULAR - NH – 1 16.7%
LEVEL 3 COMMUNICATIONS, LLC - NH Lumen 1 16.7%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH Verizon 1 16.7%
CONSOLIDATED COMM OF NO. NEW ENGLAND-NH Consolidated 1 16.7%
FREEDOM RING COMMUNICATIONS, LLC – 1 16.7%

Frequently asked

Which prefixes belong to PETERBROGH in area code 603?

6 blocks: 371, 562, 567, 784, 924, 925. The table above gives the holder of each.

Which carriers have numbers in PETERBROGH?

PAETEC ITEL, LLC (1 block), UNITED STATES CELLULAR - NH (1 block), LEVEL 3 COMMUNICATIONS, LLC - NH (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH (1 block), CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (1 block), FREEDOM RING COMMUNICATIONS, 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 PETERBROGH 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