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

LITTLETON prefixes in area code 978

NANPA records 13 assigned NXX blocks to rate center LITTLETON in area code 978, 1.7% of the 773 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. 8 holders hold those blocks, the largest being VERIZON NEW ENGLAND INC. (3), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (2), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA (2). The earliest assignment on record here is 2001-05-09 and the most recent 2001-12-31. 13 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 252, 309, 603 – overlay codes cover the same geography, so a rate center is served by all of them.

13 assigned blocks – 1.7% of 978
8 holders of record
13 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
978-339 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
978-431 Peerless PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA – yes yes
978-486 Verizon VERIZON NEW ENGLAND INC. – yes yes
978-501 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 2001-05-09 yes yes
978-506 Onvoy ONVOY, LLC - MA – yes yes
978-540 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
978-679 Windstream PAETEC ITEL, LLC – yes yes
978-698 AT&T TC SYSTEMS, INC. – yes yes
978-742 Verizon VERIZON NEW ENGLAND INC. – yes yes
978-800 Lumen LEVEL 3 COMMUNICATIONS, LLC - MA 2001-12-31 yes yes
978-899 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA 2001-10-01 yes yes
978-951 Lumen LEVEL 3 COMMUNICATIONS, LLC - MA 2001-10-26 yes yes
978-952 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 3 23.1%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 2 15.4%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA Verizon 2 15.4%
LEVEL 3 COMMUNICATIONS, LLC - MA Lumen 2 15.4%
PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA Peerless 1 7.7%
ONVOY, LLC - MA Onvoy 1 7.7%
PAETEC ITEL, LLC Windstream 1 7.7%
TC SYSTEMS, INC. AT&T 1 7.7%

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 LITTLETON in area code 978?

13 blocks: 339, 431, 486, 501, 506, 540, 679, 698, 742, 800, 899, 951 and 1 more, all listed in the table above.

Which carriers have numbers in LITTLETON?

VERIZON NEW ENGLAND INC. (3 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (2 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - MA (2 blocks), PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA (1 block), ONVOY, LLC - MA (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is LITTLETON 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 978

All 773 prefixes in 978