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

JUDSONIA prefixes in area code 501

NANPA records 4 assigned NXX blocks to rate center JUDSONIA in area code 501, 0.6% 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. 3 holders hold those blocks, the largest being LEVEL 3 COMMUNICATIONS, LLC - AR (2), NEW CINGULAR WIRELESS PCS, LLC - IL (1), BRIGHTSPEED OF CENTRAL ARKANSAS, LLC (1). The earliest assignment on record here is 2002-10-16 and the most recent 2015-06-24. 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

4 assigned blocks – 0.6% of 501
3 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
501-284 AT&T NEW CINGULAR WIRELESS PCS, LLC - IL 2002-10-16 yes yes
501-417 Lumen LEVEL 3 COMMUNICATIONS, LLC - AR 2015-06-24 yes yes
501-456 Lumen LEVEL 3 COMMUNICATIONS, LLC - AR 2006-05-23 yes yes
501-729 Brightspeed BRIGHTSPEED OF CENTRAL ARKANSAS, 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
LEVEL 3 COMMUNICATIONS, LLC - AR Lumen 2 50%
NEW CINGULAR WIRELESS PCS, LLC - IL AT&T 1 25%
BRIGHTSPEED OF CENTRAL ARKANSAS, LLC Brightspeed 1 25%

Frequently asked

Which prefixes belong to JUDSONIA in area code 501?

4 blocks: 284, 417, 456, 729. The table above gives the holder of each.

Which carriers have numbers in JUDSONIA?

LEVEL 3 COMMUNICATIONS, LLC - AR (2 blocks), NEW CINGULAR WIRELESS PCS, LLC - IL (1 block), BRIGHTSPEED OF CENTRAL ARKANSAS, 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 JUDSONIA 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