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

SOUTHGATE prefixes in area code 508

NANPA records 4 assigned NXX blocks to rate center SOUTHGATE in area code 508, 0.5% of the 749 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 VERIZON NEW ENGLAND INC. (2), PAETEC ITEL, LLC (1), LEVEL 3 COMMUNICATIONS, LLC - MA (1). 4 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 774 – overlay codes cover the same geography, so a rate center is served by all of them.

4 assigned blocks – 0.5% of 508
3 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
508-399 Verizon VERIZON NEW ENGLAND INC. – yes yes
508-639 Windstream PAETEC ITEL, LLC – yes yes
508-761 Verizon VERIZON NEW ENGLAND INC. – yes yes
508-915 Lumen LEVEL 3 COMMUNICATIONS, LLC - MA – 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 ENGLAND INC. Verizon 2 50%
PAETEC ITEL, LLC Windstream 1 25%
LEVEL 3 COMMUNICATIONS, LLC - MA Lumen 1 25%

Frequently asked

Which prefixes belong to SOUTHGATE in area code 508?

4 blocks: 399, 639, 761, 915. The table above gives the holder of each.

Which carriers have numbers in SOUTHGATE?

VERIZON NEW ENGLAND INC. (2 blocks), PAETEC ITEL, LLC (1 block), LEVEL 3 COMMUNICATIONS, LLC - MA (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is SOUTHGATE 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 508

All 749 prefixes in 508