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

CHARLEMONT prefixes in area code 413

NANPA records 4 assigned NXX blocks to rate center CHARLEMONT in area code 413, 0.7% of the 605 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. 2 holders hold those blocks, the largest being VERIZON NEW ENGLAND INC. (2), LEVEL 3 COMMUNICATIONS, LLC - MA (2). The earliest assignment on record here is 2001-06-21 and the most recent 2001-11-15. 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

4 assigned blocks – 0.7% of 413
2 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
413-337 Verizon VERIZON NEW ENGLAND INC. – yes yes
413-339 Verizon VERIZON NEW ENGLAND INC. – yes yes
413-849 Lumen LEVEL 3 COMMUNICATIONS, LLC - MA 2001-11-15 yes yes
413-994 Lumen LEVEL 3 COMMUNICATIONS, LLC - MA 2001-06-21 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 2 50%
LEVEL 3 COMMUNICATIONS, LLC - MA Lumen 2 50%

Frequently asked

Which prefixes belong to CHARLEMONT in area code 413?

4 blocks: 337, 339, 849, 994. The table above gives the holder of each.

Which carriers have numbers in CHARLEMONT?

VERIZON NEW ENGLAND INC. (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - MA (2 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is CHARLEMONT 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 413

All 605 prefixes in 413