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

WHITESBURG prefixes in area code 606

NANPA records 12 assigned NXX blocks to rate center WHITESBURG in area code 606, 1.9% of the 639 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 NEW CINGULAR WIRELESS PCS, LLC - GA (3), ONVOY, LLC - KY (2), BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (2). The earliest assignment on record here is 2002-04-10 and the most recent 2024-05-24. 7 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

12 assigned blocks – 1.9% of 606
7 holders of record
7 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
606-214 Telnyx TELNYX LLC – yes yes
606-238 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2023-11-20 yes yes
606-335 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2002-06-05 yes yes
606-403 Onvoy ONVOY, LLC - KY 2007-03-07 yes yes
606-469 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA – no yes
606-486 IP HORIZON LLC 2024-05-24 yes yes
606-536 Lumen LEVEL 3 COMMUNICATIONS, LLC - KY 2002-04-10 yes yes
606-632 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – no yes
606-633 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – no yes
606-634 EAST KENTUCKY NETWRK, LLC DBA APPALACHIAN WIRELESS – no yes
606-775 Onvoy ONVOY, LLC - KY – yes yes
606-821 EAST KENTUCKY NETWRK, LLC DBA APPALACHIAN WIRELESS – no 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 - GA AT&T 3 25%
ONVOY, LLC - KY Onvoy 2 16.7%
BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL AT&T 2 16.7%
EAST KENTUCKY NETWRK, LLC DBA APPALACHIAN WIRELESS – 2 16.7%
TELNYX LLC Telnyx 1 8.3%
IP HORIZON LLC – 1 8.3%
LEVEL 3 COMMUNICATIONS, LLC - KY Lumen 1 8.3%

Frequently asked

Which prefixes belong to WHITESBURG in area code 606?

12 blocks: 214, 238, 335, 403, 469, 486, 536, 632, 633, 634, 775, 821. The table above gives the holder of each.

Which carriers have numbers in WHITESBURG?

NEW CINGULAR WIRELESS PCS, LLC - GA (3 blocks), ONVOY, LLC - KY (2 blocks), BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (2 blocks), EAST KENTUCKY NETWRK, LLC DBA APPALACHIAN WIRELESS (2 blocks), TELNYX LLC (1 block), IP HORIZON 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 WHITESBURG 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 606

All 639 prefixes in 606