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

KEENE prefixes in area code 603

NANPA records 17 assigned NXX blocks to rate center KEENE in area code 603, 2.3% 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. 10 holders hold those blocks, the largest being CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (4), PAETEC ITEL, LLC (3), UNITED STATES CELLULAR - NH (2). The earliest assignment on record here is 2016-10-20 and the most recent 2016-10-20. 15 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 518, 701, 838 – overlay codes cover the same geography, so a rate center is served by all of them.

17 assigned blocks – 2.3% of 603
10 holders of record
15 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
603-209 UNITED STATES CELLULAR - NH – yes yes
603-283 Windstream PAETEC ITEL, LLC – yes yes
603-313 UNITED STATES CELLULAR - NH – yes yes
603-338 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH – yes yes
603-352 Consolidated CONSOLIDATED COMM OF NO. NEW ENGLAND-NH – no yes
603-354 Consolidated CONSOLIDATED COMM OF NO. NEW ENGLAND-NH – yes yes
603-355 Consolidated CONSOLIDATED COMM OF NO. NEW ENGLAND-NH – yes yes
603-357 FIDIUM ENTERPRISE SERVICES, LLC – yes yes
603-358 Consolidated CONSOLIDATED COMM OF NO. NEW ENGLAND-NH – no yes
603-439 Windstream PAETEC ITEL, LLC – yes yes
603-499 Lumen LEVEL 3 COMMUNICATIONS, LLC - NH – yes yes
603-719 FREEDOM RING COMMUNICATIONS, LLC – yes yes
603-757 Windstream PAETEC ITEL, LLC – yes yes
603-762 BELL ATLANTIC MOBILE, INC – yes yes
603-803 Lumen CENTURYLINK COMMUNICATIONS, LLC 2016-10-20 yes yes
603-852 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC – yes yes
603-903 BELL ATLANTIC MOBILE, INC – 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 4 23.5%
PAETEC ITEL, LLC Windstream 3 17.6%
UNITED STATES CELLULAR - NH – 2 11.8%
BELL ATLANTIC MOBILE, INC – 2 11.8%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH Verizon 1 5.9%
FIDIUM ENTERPRISE SERVICES, LLC – 1 5.9%
LEVEL 3 COMMUNICATIONS, LLC - NH Lumen 1 5.9%
FREEDOM RING COMMUNICATIONS, LLC – 1 5.9%
CENTURYLINK COMMUNICATIONS, LLC Lumen 1 5.9%
OMNIPOINT MIAMI E LICENSE, LLC T-Mobile 1 5.9%

Frequently asked

Which prefixes belong to KEENE in area code 603?

17 blocks: 209, 283, 313, 338, 352, 354, 355, 357, 358, 439, 499, 719 and 5 more, all listed in the table above.

Which carriers have numbers in KEENE?

CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (4 blocks), PAETEC ITEL, LLC (3 blocks), UNITED STATES CELLULAR - NH (2 blocks), BELL ATLANTIC MOBILE, INC (2 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH (1 block), FIDIUM ENTERPRISE SERVICES, 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 KEENE 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