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

GRIFFITHVL prefixes in area code 501

NANPA records 3 assigned NXX blocks to rate center GRIFFITHVL in area code 501, 0.5% 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 BRIGHTSPEED OF CENTRAL ARKANSAS, LLC (1), ONVOY, LLC - AR (1), TON80 COMMUNICATIONS, LLC (1). The earliest assignment on record here is 2018-09-21 and the most recent 2022-02-15. 3 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

3 assigned blocks – 0.5% of 501
3 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
501-323 Brightspeed BRIGHTSPEED OF CENTRAL ARKANSAS, LLC – yes yes
501-506 Onvoy ONVOY, LLC - AR 2018-09-21 yes yes
501-782 TON80 COMMUNICATIONS, LLC 2022-02-15 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
BRIGHTSPEED OF CENTRAL ARKANSAS, LLC Brightspeed 1 33.3%
ONVOY, LLC - AR Onvoy 1 33.3%
TON80 COMMUNICATIONS, LLC – 1 33.3%

Frequently asked

Which prefixes belong to GRIFFITHVL in area code 501?

3 blocks: 323, 506, 782. The table above gives the holder of each.

Which carriers have numbers in GRIFFITHVL?

BRIGHTSPEED OF CENTRAL ARKANSAS, LLC (1 block), ONVOY, LLC - AR (1 block), TON80 COMMUNICATIONS, 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 GRIFFITHVL 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