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

VTVL ADLN prefixes in area code 442

NANPA records 5 assigned NXX blocks to rate center VTVL ADLN in area code 442, 1.4% of the 356 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 LEVEL 3 COMMUNICATIONS, LLC - CA (1), FRONTIER CALIFORNIA INC. (1), NEW CINGULAR WIRELESS PCS, LLC (1). The earliest assignment on record here is 2015-03-23 and the most recent 2024-03-21. 5 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 760 – overlay codes cover the same geography, so a rate center is served by all of them.

5 assigned blocks – 1.4% of 442
5 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
442-249 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA 2015-03-23 yes yes
442-363 Frontier FRONTIER CALIFORNIA INC. 2017-12-21 yes yes
442-405 AT&T NEW CINGULAR WIRELESS PCS, LLC 2023-06-16 yes yes
442-457 Onvoy ONVOY, LLC - CA 2024-03-21 yes yes
442-524 Twilio TWILIO INTERNATIONAL, INC. 2020-09-23 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 1 20%
FRONTIER CALIFORNIA INC. Frontier 1 20%
NEW CINGULAR WIRELESS PCS, LLC AT&T 1 20%
ONVOY, LLC - CA Onvoy 1 20%
TWILIO INTERNATIONAL, INC. Twilio 1 20%

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 VTVL ADLN in area code 442?

5 blocks: 249, 363, 405, 457, 524. The table above gives the holder of each.

Which carriers have numbers in VTVL ADLN?

LEVEL 3 COMMUNICATIONS, LLC - CA (1 block), FRONTIER CALIFORNIA INC. (1 block), NEW CINGULAR WIRELESS PCS, LLC (1 block), ONVOY, LLC - CA (1 block), TWILIO INTERNATIONAL, INC. (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is VTVL ADLN 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 442

All 356 prefixes in 442