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

WARRENSBG prefixes in area code 518

NANPA records 3 assigned NXX blocks to rate center WARRENSBG in area code 518, 0.4% of the 775 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. 3 holders hold those blocks, the largest being TWC IP ENABLED SERVICES, LLC (1), VERIZON NEW YORK, INC. (1), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY (1). The earliest assignment on record here is 2015-11-12 and the most recent 2015-11-12. 3 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, 660, 838 – overlay codes cover the same geography, so a rate center is served by all of them.

3 assigned blocks – 0.4% of 518
3 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
518-504 Charter TWC IP ENABLED SERVICES, LLC – yes yes
518-623 Verizon VERIZON NEW YORK, INC. – yes yes
518-840 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 2015-11-12 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
TWC IP ENABLED SERVICES, LLC Charter 1 33.3%
VERIZON NEW YORK, INC. Verizon 1 33.3%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY Verizon 1 33.3%

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 WARRENSBG in area code 518?

3 blocks: 504, 623, 840. The table above gives the holder of each.

Which carriers have numbers in WARRENSBG?

TWC IP ENABLED SERVICES, LLC (1 block), VERIZON NEW YORK, INC. (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES 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 WARRENSBG 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 518

All 775 prefixes in 518