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

BOLTON LDG prefixes in area code 518

NANPA records 3 assigned NXX blocks to rate center BOLTON LDG 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 TC SYSTEMS, INC. - NY (1), ONVOY, LLC- NY (1), VERIZON NEW YORK, INC. (1). The earliest assignment on record here is 2017-05-09 and the most recent 2017-05-09. 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 code 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
518-240 AT&T TC SYSTEMS, INC. - NY – yes yes
518-413 Onvoy ONVOY, LLC- NY 2017-05-09 yes yes
518-644 Verizon VERIZON NEW YORK, 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
TC SYSTEMS, INC. - NY AT&T 1 33.3%
ONVOY, LLC- NY Onvoy 1 33.3%
VERIZON NEW YORK, INC. Verizon 1 33.3%

Frequently asked

Which prefixes belong to BOLTON LDG in area code 518?

3 blocks: 240, 413, 644. The table above gives the holder of each.

Which carriers have numbers in BOLTON LDG?

TC SYSTEMS, INC. - NY (1 block), ONVOY, LLC- NY (1 block), VERIZON NEW YORK, 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 BOLTON LDG 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