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

WINDSOR prefixes in area code 757

NANPA records 5 assigned NXX blocks to rate center WINDSOR in area code 757, 0.6% of the 785 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 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (2), VERIZON SOUTH, INC. - VA (CONTEL) (1), CORETEL VIRGINIA, LLC - VA (1). The earliest assignment on record here is 2009-03-21 and the most recent 2021-04-14. 5 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 217, 252, 369, 440 – overlay codes cover the same geography, so a rate center is served by all of them.

5 assigned blocks – 0.6% of 757
4 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
757-241 T-Mobile OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC – yes yes
757-242 Verizon VERIZON SOUTH, INC. - VA (CONTEL) – yes yes
757-379 CORETEL VIRGINIA, LLC - VA 2009-03-21 yes yes
757-835 T-Mobile OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 2021-04-14 yes yes
757-997 Onvoy ONVOY, LLC - VA 2020-05-07 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
OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC T-Mobile 2 40%
VERIZON SOUTH, INC. - VA (CONTEL) Verizon 1 20%
CORETEL VIRGINIA, LLC - VA – 1 20%
ONVOY, LLC - VA Onvoy 1 20%

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 WINDSOR in area code 757?

5 blocks: 241, 242, 379, 835, 997. The table above gives the holder of each.

Which carriers have numbers in WINDSOR?

OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (2 blocks), VERIZON SOUTH, INC. - VA (CONTEL) (1 block), CORETEL VIRGINIA, LLC - VA (1 block), ONVOY, LLC - VA (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is WINDSOR 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 757

All 785 prefixes in 757