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

SHOREHAM prefixes in area code 631

NANPA records 8 assigned NXX blocks to rate center SHOREHAM in area code 631, 1.0% 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 VERIZON NEW YORK, INC. (3), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY (2), LEVEL 3 COMMUNICATIONS, LLC - NY (1). The earliest assignment on record here is 2021-02-02 and the most recent 2021-02-02. 6 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 802, 934 – overlay codes cover the same geography, so a rate center is served by all of them.

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

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
631-209 Verizon VERIZON NEW YORK, INC. – yes yes
631-228 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY – yes yes
631-378 Lumen LEVEL 3 COMMUNICATIONS, LLC - NY – yes yes
631-744 Verizon VERIZON NEW YORK, INC. – no yes
631-769 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY – yes yes
631-821 Verizon VERIZON NEW YORK, INC. – no yes
631-849 Altice CABLEVISION LIGHTPATH, INC. - NY – yes yes
631-916 Telnyx TELNYX LLC 2021-02-02 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 YORK, INC. Verizon 3 37.5%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY Verizon 2 25%
LEVEL 3 COMMUNICATIONS, LLC - NY Lumen 1 12.5%
CABLEVISION LIGHTPATH, INC. - NY Altice 1 12.5%
TELNYX LLC Telnyx 1 12.5%

Frequently asked

Which prefixes belong to SHOREHAM in area code 631?

8 blocks: 209, 228, 378, 744, 769, 821, 849, 916. The table above gives the holder of each.

Which carriers have numbers in SHOREHAM?

VERIZON NEW YORK, INC. (3 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - NY (1 block), CABLEVISION LIGHTPATH, INC. - NY (1 block), TELNYX LLC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is SHOREHAM 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