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

LEXINGTON prefixes in area code 781

NANPA records 56 assigned NXX blocks to rate center LEXINGTON in area code 781, 7.3% 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 VERIZON NEW ENGLAND INC. (18), BANDWIDTH.COM CLEC, LLC - MA (15), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (7). The earliest assignment on record here is 2001-08-21 and the most recent 2010-03-04. 46 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 256, 308, 309, 336 – overlay codes cover the same geography, so a rate center is served by all of them.

56 assigned blocks – 7.3% of 781
9 holders of record
46 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
781-225 AT&T TC SYSTEMS, INC. 2010-03-04 yes yes
781-226 Bandwidth BANDWIDTH.COM CLEC, LLC - MA – yes yes
781-230 Bandwidth BANDWIDTH.COM CLEC, LLC - MA – yes yes
781-240 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
781-266 AT&T TC SYSTEMS, INC. – yes yes
781-271 Verizon VERIZON NEW ENGLAND INC. – no yes
781-274 Verizon VERIZON NEW ENGLAND INC. – no yes
781-275 Verizon VERIZON NEW ENGLAND INC. – no yes
781-276 Verizon VERIZON NEW ENGLAND INC. – yes yes
781-280 Verizon VERIZON NEW ENGLAND INC. – yes yes
781-301 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
781-323 Lumen LEVEL 3 COMMUNICATIONS, LLC - MA – yes yes
781-325 Lumen LEVEL 3 COMMUNICATIONS, LLC - MA – yes yes
781-354 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC – no yes
781-357 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
781-372 Verizon VERIZON NEW ENGLAND INC. – no yes
781-377 Verizon VERIZON NEW ENGLAND INC. – yes yes
781-382 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA – yes yes
781-402 Verizon VERIZON NEW ENGLAND INC. – yes yes
781-430 AT&T TC SYSTEMS, INC. – yes yes
781-456 Bandwidth BANDWIDTH.COM CLEC, LLC - MA – yes yes
781-457 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
781-458 Bandwidth BANDWIDTH.COM CLEC, LLC - MA – yes yes
781-482 AT&T TC SYSTEMS, INC. – yes yes
781-515 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
781-532 Bandwidth BANDWIDTH.COM CLEC, LLC - MA – no yes
781-533 Verizon VERIZON NEW ENGLAND INC. – yes yes
781-538 Lumen LEVEL 3 COMMUNICATIONS, LLC - MA – yes yes
781-541 Windstream PAETEC ITEL, LLC – yes yes
781-553 Bandwidth BANDWIDTH.COM CLEC, LLC - MA – yes yes
781-597 Bandwidth BANDWIDTH.COM CLEC, LLC - MA – yes yes
781-652 RCN TELECOM SERVICES, INC. - MA – yes yes
781-669 Bandwidth BANDWIDTH.COM CLEC, LLC - MA – yes yes
781-671 Bandwidth BANDWIDTH.COM CLEC, LLC - MA – yes yes
781-674 Verizon VERIZON NEW ENGLAND INC. – yes yes
781-676 Verizon VERIZON NEW ENGLAND INC. – yes yes
781-687 Verizon VERIZON NEW ENGLAND INC. – no yes
781-698 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
781-734 Lumen LEVEL 3 COMMUNICATIONS, LLC - MA – yes yes
781-748 Bandwidth BANDWIDTH.COM CLEC, LLC - MA – yes yes
781-761 Windstream PAETEC ITEL, LLC – yes yes
781-766 Bandwidth BANDWIDTH.COM CLEC, LLC - MA – yes yes
781-778 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
781-841 Bandwidth BANDWIDTH.COM CLEC, LLC - MA – yes yes
781-845 Bandwidth BANDWIDTH.COM CLEC, LLC - MA – yes yes
781-860 Verizon VERIZON NEW ENGLAND INC. – yes yes
781-861 Verizon VERIZON NEW ENGLAND INC. – no yes
781-862 Verizon VERIZON NEW ENGLAND INC. – no yes
781-863 Verizon VERIZON NEW ENGLAND INC. – yes yes
781-869 AT&T TC SYSTEMS, INC. – yes yes
781-879 Windstream PAETEC ITEL, LLC 2001-08-21 yes yes
781-918 AT&T TC SYSTEMS, INC. 2005-03-18 yes yes
781-945 Bandwidth BANDWIDTH.COM CLEC, LLC - MA – yes yes
781-958 Bandwidth BANDWIDTH.COM CLEC, LLC - MA – yes yes
781-981 Verizon VERIZON NEW ENGLAND INC. – no yes
781-999 Verizon VERIZON NEW ENGLAND 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
VERIZON NEW ENGLAND INC. Verizon 18 32.1%
BANDWIDTH.COM CLEC, LLC - MA Bandwidth 15 26.8%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 7 12.5%
TC SYSTEMS, INC. AT&T 6 10.7%
LEVEL 3 COMMUNICATIONS, LLC - MA Lumen 4 7.1%
PAETEC ITEL, LLC Windstream 3 5.4%
OMNIPOINT MIAMI E LICENSE, LLC T-Mobile 1 1.8%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA Verizon 1 1.8%
RCN TELECOM SERVICES, INC. - MA – 1 1.8%

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 LEXINGTON in area code 781?

56 blocks: 225, 226, 230, 240, 266, 271, 274, 275, 276, 280, 301, 323 and 44 more, all listed in the table above.

Which carriers have numbers in LEXINGTON?

VERIZON NEW ENGLAND INC. (18 blocks), BANDWIDTH.COM CLEC, LLC - MA (15 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (7 blocks), TC SYSTEMS, INC. (6 blocks), LEVEL 3 COMMUNICATIONS, LLC - MA (4 blocks), PAETEC ITEL, LLC (3 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is LEXINGTON 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