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

WESTFIELD prefixes in area code 413

NANPA records 16 assigned NXX blocks to rate center WESTFIELD in area code 413, 2.6% 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. 7 holders hold those blocks, the largest being PAETEC ITEL, LLC (7), VERIZON NEW ENGLAND INC. (4), STRATUS NETWORKS (1). The earliest assignment on record here is 2001-02-27 and the most recent 2023-12-18. 11 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 217, 281, 317, 336 – overlay codes cover the same geography, so a rate center is served by all of them.

16 assigned blocks – 2.6% of 413
7 holders of record
11 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
413-393 STRATUS NETWORKS 2021-03-05 yes yes
413-454 Windstream PAETEC ITEL, LLC – yes yes
413-480 Windstream PAETEC ITEL, LLC – no yes
413-485 Windstream PAETEC ITEL, LLC – yes yes
413-516 LEAP TELECOM, LLC 2023-12-18 yes yes
413-562 Verizon VERIZON NEW ENGLAND INC. – no yes
413-564 Verizon VERIZON NEW ENGLAND INC. – yes yes
413-568 Verizon VERIZON NEW ENGLAND INC. – no yes
413-571 Windstream PAETEC ITEL, LLC 2018-03-02 yes yes
413-572 Verizon VERIZON NEW ENGLAND INC. – no yes
413-579 AT&T TC SYSTEMS, INC. – yes yes
413-639 Windstream PAETEC ITEL, LLC – no yes
413-642 Windstream PAETEC ITEL, LLC 2001-02-27 yes yes
413-729 Lumen LEVEL 3 COMMUNICATIONS, LLC - MA – yes yes
413-875 Windstream PAETEC ITEL, LLC – yes yes
413-977 T-Mobile METROPCS, 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
PAETEC ITEL, LLC Windstream 7 43.8%
VERIZON NEW ENGLAND INC. Verizon 4 25%
STRATUS NETWORKS – 1 6.2%
LEAP TELECOM, LLC – 1 6.2%
TC SYSTEMS, INC. AT&T 1 6.2%
LEVEL 3 COMMUNICATIONS, LLC - MA Lumen 1 6.2%
METROPCS, INC. T-Mobile 1 6.2%

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 WESTFIELD in area code 413?

16 blocks: 393, 454, 480, 485, 516, 562, 564, 568, 571, 572, 579, 639 and 4 more, all listed in the table above.

Which carriers have numbers in WESTFIELD?

PAETEC ITEL, LLC (7 blocks), VERIZON NEW ENGLAND INC. (4 blocks), STRATUS NETWORKS (1 block), LEAP TELECOM, LLC (1 block), TC SYSTEMS, INC. (1 block), LEVEL 3 COMMUNICATIONS, 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 WESTFIELD 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