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

LUDLOW prefixes in area code 413

NANPA records 9 assigned NXX blocks to rate center LUDLOW in area code 413, 1.5% 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. 4 holders hold those blocks, the largest being PAETEC ITEL, LLC (4), VERIZON NEW ENGLAND INC. (3), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA (1). The earliest assignment on record here is 2001-05-21 and the most recent 2001-07-10. 8 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, 447, 582, 660 – overlay codes cover the same geography, so a rate center is served by all of them.

9 assigned blocks – 1.5% of 413
4 holders of record
8 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
413-308 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA 2001-07-10 yes yes
413-385 Windstream PAETEC ITEL, LLC – yes yes
413-431 Windstream PAETEC ITEL, LLC – no yes
413-547 Verizon VERIZON NEW ENGLAND INC. – yes yes
413-583 Verizon VERIZON NEW ENGLAND INC. – yes yes
413-589 Verizon VERIZON NEW ENGLAND INC. – yes yes
413-610 Windstream PAETEC ITEL, LLC – yes yes
413-631 AT&T TC SYSTEMS, INC. – yes yes
413-995 Windstream PAETEC ITEL, LLC 2001-05-21 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
PAETEC ITEL, LLC Windstream 4 44.4%
VERIZON NEW ENGLAND INC. Verizon 3 33.3%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA Verizon 1 11.1%
TC SYSTEMS, INC. AT&T 1 11.1%

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 LUDLOW in area code 413?

9 blocks: 308, 385, 431, 547, 583, 589, 610, 631, 995. The table above gives the holder of each.

Which carriers have numbers in LUDLOW?

PAETEC ITEL, LLC (4 blocks), VERIZON NEW ENGLAND INC. (3 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA (1 block), TC SYSTEMS, INC. (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is LUDLOW 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