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

GABBS prefixes in area code 775

NANPA records 4 assigned NXX blocks to rate center GABBS in area code 775, 0.7% of the 601 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. 2 holders hold those blocks, the largest being ONVOY, LLC - NV (3), NEVADA BELL (1). 2 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

4 assigned blocks – 0.7% of 775
2 holders of record
2 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
775-257 Onvoy ONVOY, LLC - NV – no yes
775-285 AT&T NEVADA BELL – yes yes
775-535 Onvoy ONVOY, LLC - NV – no yes
775-637 Onvoy ONVOY, LLC - NV – 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
ONVOY, LLC - NV Onvoy 3 75%
NEVADA BELL AT&T 1 25%

Frequently asked

Which prefixes belong to GABBS in area code 775?

4 blocks: 257, 285, 535, 637. The table above gives the holder of each.

Which carriers have numbers in GABBS?

ONVOY, LLC - NV (3 blocks), NEVADA BELL (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is GABBS 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 775

All 601 prefixes in 775