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

RED ROCK prefixes in area code 775

NANPA records 3 assigned NXX blocks to rate center RED ROCK in area code 775, 0.5% 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 RURAL TEL CO (2), BOOST SUBSCRIBERCO L.L.C. (1). The earliest assignment on record here is 2023-03-23 and the most recent 2023-03-23. 1 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 580 – overlay codes cover the same geography, so a rate center is served by all of them.

3 assigned blocks – 0.5% of 775
2 holders of record
1 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
775-509 Dish BOOST SUBSCRIBERCO L.L.C. 2023-03-23 yes yes
775-969 RURAL TEL CO – no yes
775-970 RURAL TEL CO – no 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
RURAL TEL CO – 2 66.7%
BOOST SUBSCRIBERCO L.L.C. Dish 1 33.3%

Frequently asked

Which prefixes belong to RED ROCK in area code 775?

3 blocks: 509, 969, 970. The table above gives the holder of each.

Which carriers have numbers in RED ROCK?

RURAL TEL CO (2 blocks), BOOST SUBSCRIBERCO L.L.C. (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is RED ROCK 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