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

PAROWAN prefixes in area code 435

NANPA records 4 assigned NXX blocks to rate center PAROWAN in area code 435, 0.8% of the 501 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. 4 holders hold those blocks, the largest being NEW CINGULAR WIRELESS PCS, LLC (1), QWEST CORPORATION (1), FRACTEL, LLC (1). The earliest assignment on record here is 2001-10-23 and the most recent 2021-07-01. 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

4 assigned blocks – 0.8% of 435
4 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
435-393 AT&T NEW CINGULAR WIRELESS PCS, LLC 2006-09-08 yes yes
435-477 Lumen QWEST CORPORATION – yes yes
435-600 FRACTEL, LLC 2021-07-01 yes yes
435-710 Lumen LEVEL 3 COMMUNICATIONS, LLC - UT 2001-10-23 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
NEW CINGULAR WIRELESS PCS, LLC AT&T 1 25%
QWEST CORPORATION Lumen 1 25%
FRACTEL, LLC – 1 25%
LEVEL 3 COMMUNICATIONS, LLC - UT Lumen 1 25%

Frequently asked

Which prefixes belong to PAROWAN in area code 435?

4 blocks: 393, 477, 600, 710. The table above gives the holder of each.

Which carriers have numbers in PAROWAN?

NEW CINGULAR WIRELESS PCS, LLC (1 block), QWEST CORPORATION (1 block), FRACTEL, LLC (1 block), LEVEL 3 COMMUNICATIONS, LLC - UT (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is PAROWAN 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 435

All 501 prefixes in 435