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

GUILFORD prefixes in area code 607

NANPA records 3 assigned NXX blocks to rate center GUILFORD in area code 607, 0.5% of the 548 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 NEW CINGULAR WIRELESS PCS, LLC - DC (1), PEERING HUB, INC. - NY (1), CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY (1). The earliest assignment on record here is 2023-04-07 and the most recent 2023-04-07. 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 codes 203, 207, 475, 812 – overlay codes cover the same geography, so a rate center is served by all of them.

3 assigned blocks – 0.5% of 607
3 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
607-226 AT&T NEW CINGULAR WIRELESS PCS, LLC - DC – yes yes
607-451 PEERING HUB, INC. - NY 2023-04-07 yes yes
607-895 Frontier CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY – 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
NEW CINGULAR WIRELESS PCS, LLC - DC AT&T 1 33.3%
PEERING HUB, INC. - NY – 1 33.3%
CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY Frontier 1 33.3%

Same rate center in other codes

Overlay codes cover the same geography, so one rate center is served by all of them.

Frequently asked

Which prefixes belong to GUILFORD in area code 607?

3 blocks: 226, 451, 895. The table above gives the holder of each.

Which carriers have numbers in GUILFORD?

NEW CINGULAR WIRELESS PCS, LLC - DC (1 block), PEERING HUB, INC. - NY (1 block), CITIZENS TELECOMM CO OF NY DBA FRONTIER COMM OF NY (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is GUILFORD 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 607

All 548 prefixes in 607