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

MONTAUK PT prefixes in area code 631

NANPA records 5 assigned NXX blocks to rate center MONTAUK PT in area code 631, 0.6% of the 782 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 PEERLESS NETWORK OF NEW YORK, LLC - NY (1), CSC VOICE, LLC (1), TELENGY L.L.C. - NY (1). The earliest assignment on record here is 2001-09-25 and the most recent 2014-08-01. 5 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 934 – overlay codes cover the same geography, so a rate center is served by all of them.

5 assigned blocks – 0.6% of 631
5 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
631-230 Peerless PEERLESS NETWORK OF NEW YORK, LLC - NY 2012-09-06 yes yes
631-238 CSC VOICE, LLC 2001-09-25 yes yes
631-483 TELENGY L.L.C. - NY 2012-02-03 yes yes
631-668 Verizon VERIZON NEW YORK, INC. – yes yes
631-825 Bandwidth BANDWIDTH.COM CLEC, LLC - NY 2014-08-01 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
PEERLESS NETWORK OF NEW YORK, LLC - NY Peerless 1 20%
CSC VOICE, LLC – 1 20%
TELENGY L.L.C. - NY – 1 20%
VERIZON NEW YORK, INC. Verizon 1 20%
BANDWIDTH.COM CLEC, LLC - NY Bandwidth 1 20%

Frequently asked

Which prefixes belong to MONTAUK PT in area code 631?

5 blocks: 230, 238, 483, 668, 825. The table above gives the holder of each.

Which carriers have numbers in MONTAUK PT?

PEERLESS NETWORK OF NEW YORK, LLC - NY (1 block), CSC VOICE, LLC (1 block), TELENGY L.L.C. - NY (1 block), VERIZON NEW YORK, INC. (1 block), BANDWIDTH.COM CLEC, LLC - NY (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is MONTAUK PT 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 631

All 782 prefixes in 631