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

CRYSTALBAY prefixes in area code 775

NANPA records 11 assigned NXX blocks to rate center CRYSTALBAY in area code 775, 1.8% 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. 6 holders hold those blocks, the largest being ONVOY, LLC - NV (4), NEVADA BELL (3), CHARTER IP ENABLED SERVICES, LLC (1). The earliest assignment on record here is 2010-03-15 and the most recent 2022-03-15. 6 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

11 assigned blocks – 1.8% of 775
6 holders of record
6 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
775-249 Onvoy ONVOY, LLC - NV – no yes
775-298 Charter CHARTER IP ENABLED SERVICES, LLC – yes yes
775-347 Onvoy ONVOY, LLC - NV – no yes
775-413 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - NV 2010-03-15 yes yes
775-415 Onvoy ONVOY, LLC - NV – no yes
775-417 Onvoy ONVOY, LLC - NV – no yes
775-548 Lumen LEVEL 3 COMMUNICATIONS, LLC - NV – yes yes
775-558 TON80 COMMUNICATIONS, LLC 2022-03-15 yes yes
775-831 AT&T NEVADA BELL – no yes
775-832 AT&T NEVADA BELL – yes yes
775-833 AT&T NEVADA BELL – 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 4 36.4%
NEVADA BELL AT&T 3 27.3%
CHARTER IP ENABLED SERVICES, LLC Charter 1 9.1%
TELEPORT COMMUNICATIONS AMERICA, LLC - NV AT&T 1 9.1%
LEVEL 3 COMMUNICATIONS, LLC - NV Lumen 1 9.1%
TON80 COMMUNICATIONS, LLC – 1 9.1%

Frequently asked

Which prefixes belong to CRYSTALBAY in area code 775?

11 blocks: 249, 298, 347, 413, 415, 417, 548, 558, 831, 832, 833. The table above gives the holder of each.

Which carriers have numbers in CRYSTALBAY?

ONVOY, LLC - NV (4 blocks), NEVADA BELL (3 blocks), CHARTER IP ENABLED SERVICES, LLC (1 block), TELEPORT COMMUNICATIONS AMERICA, LLC - NV (1 block), LEVEL 3 COMMUNICATIONS, LLC - NV (1 block), TON80 COMMUNICATIONS, 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 CRYSTALBAY 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