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

LTLCOMPTON prefixes in area code 401

NANPA records 5 assigned NXX blocks to rate center LTLCOMPTON in area code 401, 0.9% of the 581 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. 5 holders hold those blocks, the largest being TELEPORT COMMUNICATIONS AMERICA, LLC - CA (1), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (1), COMCAST IP PHONE, LLC (1). The earliest assignment on record here is 2001-01-16 and the most recent 2001-01-16. 5 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

5 assigned blocks – 0.9% of 401
5 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
401-281 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA 2001-01-16 yes yes
401-420 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC – yes yes
401-592 Comcast COMCAST IP PHONE, LLC – yes yes
401-635 Verizon VERIZON NEW ENGLAND INC. – yes yes
401-777 Windstream PAETEC ITEL, LLC – 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
TELEPORT COMMUNICATIONS AMERICA, LLC - CA AT&T 1 20%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 1 20%
COMCAST IP PHONE, LLC Comcast 1 20%
VERIZON NEW ENGLAND INC. Verizon 1 20%
PAETEC ITEL, LLC Windstream 1 20%

Frequently asked

Which prefixes belong to LTLCOMPTON in area code 401?

5 blocks: 281, 420, 592, 635, 777. The table above gives the holder of each.

Which carriers have numbers in LTLCOMPTON?

TELEPORT COMMUNICATIONS AMERICA, LLC - CA (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (1 block), COMCAST IP PHONE, LLC (1 block), VERIZON NEW ENGLAND INC. (1 block), PAETEC ITEL, 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 LTLCOMPTON 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 401

All 581 prefixes in 401