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

TILTON prefixes in area code 603

NANPA records 4 assigned NXX blocks to rate center TILTON 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. 3 holders hold those blocks, the largest being CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (2), FRACTEL, LLC (1), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH (1). The earliest assignment on record here is 2020-06-15 and the most recent 2020-06-15. 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
3 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
603-266 Consolidated CONSOLIDATED COMM OF NO. NEW ENGLAND-NH – yes yes
603-286 Consolidated CONSOLIDATED COMM OF NO. NEW ENGLAND-NH – yes yes
603-500 FRACTEL, LLC 2020-06-15 yes yes
603-729 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH – 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 50%
FRACTEL, LLC – 1 25%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH Verizon 1 25%

Frequently asked

Which prefixes belong to TILTON in area code 603?

4 blocks: 266, 286, 500, 729. The table above gives the holder of each.

Which carriers have numbers in TILTON?

CONSOLIDATED COMM OF NO. NEW ENGLAND-NH (2 blocks), FRACTEL, LLC (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is TILTON 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