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

WINCHESTER prefixes in area code 781

NANPA records 18 assigned NXX blocks to rate center WINCHESTER in area code 781, 2.3% of the 769 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. 9 holders hold those blocks, the largest being METROPCS, INC. (5), VERIZON NEW ENGLAND INC. (4), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (2). The earliest assignment on record here is 2002-10-28 and the most recent 2002-10-28. 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 217, 447, 540, 603 – overlay codes cover the same geography, so a rate center is served by all of them.

18 assigned blocks – 2.3% of 781
9 holders of record
15 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
781-218 AT&T TC SYSTEMS, INC. – yes yes
781-358 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
781-368 Verizon VERIZON NEW ENGLAND INC. – yes yes
781-369 Comcast COMCAST IP PHONE, LLC – yes yes
781-389 T-Mobile METROPCS, INC. – yes yes
781-570 T-Mobile METROPCS, INC. 2002-10-28 yes yes
781-589 T-Mobile METROPCS, INC. – yes yes
781-604 Onvoy ONVOY, LLC - MA – yes yes
781-625 Lumen LEVEL 3 COMMUNICATIONS, LLC - MA – yes yes
781-717 RCN TELECOM SERVICES, INC. - MA – yes yes
781-721 Verizon VERIZON NEW ENGLAND INC. – no yes
781-722 Windstream PAETEC ITEL, LLC – yes yes
781-729 Verizon VERIZON NEW ENGLAND INC. – no yes
781-756 Verizon VERIZON NEW ENGLAND INC. – no yes
781-760 T-Mobile METROPCS, INC. – yes yes
781-838 Windstream PAETEC ITEL, LLC – yes yes
781-977 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
781-983 T-Mobile METROPCS, 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
METROPCS, INC. T-Mobile 5 27.8%
VERIZON NEW ENGLAND INC. Verizon 4 22.2%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 2 11.1%
PAETEC ITEL, LLC Windstream 2 11.1%
TC SYSTEMS, INC. AT&T 1 5.6%
COMCAST IP PHONE, LLC Comcast 1 5.6%
ONVOY, LLC - MA Onvoy 1 5.6%
LEVEL 3 COMMUNICATIONS, LLC - MA Lumen 1 5.6%
RCN TELECOM SERVICES, INC. - MA – 1 5.6%

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 WINCHESTER in area code 781?

18 blocks: 218, 358, 368, 369, 389, 570, 589, 604, 625, 717, 721, 722 and 6 more, all listed in the table above.

Which carriers have numbers in WINCHESTER?

METROPCS, INC. (5 blocks), VERIZON NEW ENGLAND INC. (4 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (2 blocks), PAETEC ITEL, LLC (2 blocks), TC SYSTEMS, INC. (1 block), COMCAST IP PHONE, 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 WINCHESTER 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 781

All 769 prefixes in 781