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

HAROLD prefixes in area code 606

NANPA records 4 assigned NXX blocks to rate center HAROLD in area code 606, 0.6% 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. 3 holders hold those blocks, the largest being GEARHEART COMM. CO., INC. DBA COALFIELDS TEL. CO. (2), FRACTEL, LLC (1), EAST KENTUCKY NETWRK, LLC DBA APPALACHIAN WIRELESS (1). The earliest assignment on record here is 2020-08-19 and the most recent 2020-08-19. 1 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 606
3 holders of record
1 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
606-345 FRACTEL, LLC 2020-08-19 yes yes
606-477 EAST KENTUCKY NETWRK, LLC DBA APPALACHIAN WIRELESS – no yes
606-478 GEARHEART COMM. CO., INC. DBA COALFIELDS TEL. CO. – no yes
606-479 GEARHEART COMM. CO., INC. DBA COALFIELDS TEL. CO. – 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
GEARHEART COMM. CO., INC. DBA COALFIELDS TEL. CO. – 2 50%
FRACTEL, LLC – 1 25%
EAST KENTUCKY NETWRK, LLC DBA APPALACHIAN WIRELESS – 1 25%

Frequently asked

Which prefixes belong to HAROLD in area code 606?

4 blocks: 345, 477, 478, 479. The table above gives the holder of each.

Which carriers have numbers in HAROLD?

GEARHEART COMM. CO., INC. DBA COALFIELDS TEL. CO. (2 blocks), FRACTEL, LLC (1 block), EAST KENTUCKY NETWRK, LLC DBA APPALACHIAN WIRELESS (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is HAROLD 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