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

AVALON prefixes in area code 424

NANPA records 6 assigned NXX blocks to rate center AVALON in area code 424, 1.3% of the 460 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 MCIMETRO ACCESS TRANSMISSION SERVICES LLC (1), LEVEL 3 COMMUNICATIONS, LLC - CA (1), ONVOY, LLC - CA (1). The earliest assignment on record here is 2007-04-22 and the most recent 2022-05-10. 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 codes 310, 609, 640, 660 – overlay codes cover the same geography, so a rate center is served by all of them.

6 assigned blocks – 1.3% of 424
6 holders of record
6 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
424-226 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC 2007-04-22 yes yes
424-334 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA 2013-11-13 yes yes
424-377 Onvoy ONVOY, LLC - CA 2016-02-29 yes yes
424-432 VoIP Innovations VOIP INNOVATIONS, LLC 2019-07-18 yes yes
424-738 AT&T AT&T ENTERPRISES, LLC 2009-12-14 yes yes
424-855 FRACTEL, LLC 2022-05-10 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
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 1 16.7%
LEVEL 3 COMMUNICATIONS, LLC - CA Lumen 1 16.7%
ONVOY, LLC - CA Onvoy 1 16.7%
VOIP INNOVATIONS, LLC VoIP Innovations 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 AVALON in area code 424?

6 blocks: 226, 334, 377, 432, 738, 855. The table above gives the holder of each.

Which carriers have numbers in AVALON?

MCIMETRO ACCESS TRANSMISSION SERVICES LLC (1 block), LEVEL 3 COMMUNICATIONS, LLC - CA (1 block), ONVOY, LLC - CA (1 block), VOIP INNOVATIONS, 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 AVALON 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 424

All 460 prefixes in 424