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

FERNDALE prefixes in area code 501

NANPA records 7 assigned NXX blocks to rate center FERNDALE in area code 501, 1.1% of the 631 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. 7 holders hold those blocks, the largest being WINDSTREAM COMMUNICATIONS, INC. - AR (1), NEW CINGULAR WIRELESS PCS, LLC - IL (1), LEVEL 3 TELECOM OF ARKANSAS, LLC - AR (1). The earliest assignment on record here is 2001-07-05 and the most recent 2025-03-13. 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 369, 484, 610, 707 – overlay codes cover the same geography, so a rate center is served by all of them.

7 assigned blocks – 1.1% of 501
7 holders of record
6 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
501-448 Windstream WINDSTREAM COMMUNICATIONS, INC. - AR – yes yes
501-471 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2021-10-04 yes yes
501-482 Lumen LEVEL 3 TELECOM OF ARKANSAS, LLC - AR – yes yes
501-578 Onvoy ONVOY, LLC - AR 2025-03-13 yes yes
501-817 Lumen LEVEL 3 COMMUNICATIONS, LLC - AR 2001-07-05 yes yes
501-821 AT&T SOUTHWESTERN BELL – no yes
501-830 Windstream PAETEC ITEL, LLC – 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
WINDSTREAM COMMUNICATIONS, INC. - AR Windstream 1 14.3%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 14.3%
LEVEL 3 TELECOM OF ARKANSAS, LLC - AR Lumen 1 14.3%
ONVOY, LLC - AR Onvoy 1 14.3%
LEVEL 3 COMMUNICATIONS, LLC - AR Lumen 1 14.3%
SOUTHWESTERN BELL AT&T 1 14.3%
PAETEC ITEL, LLC Windstream 1 14.3%

Frequently asked

Which prefixes belong to FERNDALE in area code 501?

7 blocks: 448, 471, 482, 578, 817, 821, 830. The table above gives the holder of each.

Which carriers have numbers in FERNDALE?

WINDSTREAM COMMUNICATIONS, INC. - AR (1 block), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block), LEVEL 3 TELECOM OF ARKANSAS, LLC - AR (1 block), ONVOY, LLC - AR (1 block), LEVEL 3 COMMUNICATIONS, LLC - AR (1 block), SOUTHWESTERN BELL (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is FERNDALE 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 501

All 631 prefixes in 501