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

IDYLLWILD prefixes in area code 951

NANPA records 7 assigned NXX blocks to rate center IDYLLWILD in area code 951, 1.0% of the 696 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 LEVEL 3 COMMUNICATIONS, LLC - CA (2), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (1), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA (1). The earliest assignment on record here is 2007-01-13 and the most recent 2022-02-24. 7 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

7 assigned blocks – 1% of 951
6 holders of record
7 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
951-257 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA – yes yes
951-468 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC 2007-01-13 yes yes
951-494 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 2016-08-25 yes yes
951-527 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA – yes yes
951-659 Frontier FRONTIER CALIFORNIA INC. – yes yes
951-668 TON80 COMMUNICATIONS, LLC 2022-02-24 yes yes
951-844 FRACTEL, LLC 2020-09-17 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
LEVEL 3 COMMUNICATIONS, LLC - CA Lumen 2 28.6%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 1 14.3%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA Verizon 1 14.3%
FRONTIER CALIFORNIA INC. Frontier 1 14.3%
TON80 COMMUNICATIONS, LLC – 1 14.3%
FRACTEL, LLC – 1 14.3%

Frequently asked

Which prefixes belong to IDYLLWILD in area code 951?

7 blocks: 257, 468, 494, 527, 659, 668, 844. The table above gives the holder of each.

Which carriers have numbers in IDYLLWILD?

LEVEL 3 COMMUNICATIONS, LLC - CA (2 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA (1 block), FRONTIER CALIFORNIA INC. (1 block), TON80 COMMUNICATIONS, 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 IDYLLWILD 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 951

All 696 prefixes in 951