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

SANDY VLY prefixes in area code 725

NANPA records 6 assigned NXX blocks to rate center SANDY VLY in area code 725, 2.8% of the 215 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 ONVOY, LLC - NV (2), COMMIO, LLC (1), TON80 COMMUNICATIONS, LLC (1). The earliest assignment on record here is 2018-12-19 and the most recent 2025-07-29. 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 code 702 – overlay codes cover the same geography, so a rate center is served by all of them.

6 assigned blocks – 2.8% of 725
5 holders of record
6 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
725-215 Onvoy ONVOY, LLC - NV 2018-12-19 yes yes
725-255 Onvoy ONVOY, LLC - NV 2020-10-21 yes yes
725-320 COMMIO, LLC 2023-12-14 yes yes
725-344 TON80 COMMUNICATIONS, LLC 2022-01-13 yes yes
725-351 AT&T AT&T ENTERPRISES, LLC 2025-07-29 yes yes
725-699 FRACTEL, LLC 2021-04-13 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 2 33.3%
COMMIO, LLC – 1 16.7%
TON80 COMMUNICATIONS, LLC – 1 16.7%
AT&T ENTERPRISES, LLC AT&T 1 16.7%
FRACTEL, LLC – 1 16.7%

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 SANDY VLY in area code 725?

6 blocks: 215, 255, 320, 344, 351, 699. The table above gives the holder of each.

Which carriers have numbers in SANDY VLY?

ONVOY, LLC - NV (2 blocks), COMMIO, LLC (1 block), TON80 COMMUNICATIONS, LLC (1 block), AT&T ENTERPRISES, LLC (1 block), FRACTEL, 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 SANDY VLY 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 725

All 215 prefixes in 725