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

ATHOLFKLN prefixes in area code 978

NANPA records 3 assigned NXX blocks to rate center ATHOLFKLN in area code 978, 0.4% 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. 3 holders hold those blocks, the largest being LEVEL 3 COMMUNICATIONS, LLC - MA (1), VERIZON NEW ENGLAND INC. (1), BANDWIDTH.COM CLEC, LLC - MA (1). 3 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 code 351 – overlay codes cover the same geography, so a rate center is served by all of them.

3 assigned blocks – 0.4% of 978
3 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
978-574 Lumen LEVEL 3 COMMUNICATIONS, LLC - MA – yes yes
978-575 Verizon VERIZON NEW ENGLAND INC. – yes yes
978-593 Bandwidth BANDWIDTH.COM CLEC, LLC - MA – 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
LEVEL 3 COMMUNICATIONS, LLC - MA Lumen 1 33.3%
VERIZON NEW ENGLAND INC. Verizon 1 33.3%
BANDWIDTH.COM CLEC, LLC - MA Bandwidth 1 33.3%

Frequently asked

Which prefixes belong to ATHOLFKLN in area code 978?

3 blocks: 574, 575, 593. The table above gives the holder of each.

Which carriers have numbers in ATHOLFKLN?

LEVEL 3 COMMUNICATIONS, LLC - MA (1 block), VERIZON NEW ENGLAND INC. (1 block), BANDWIDTH.COM CLEC, 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 ATHOLFKLN 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