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

ELKHORN CY prefixes in area code 606

NANPA records 3 assigned NXX blocks to rate center ELKHORN CY in area code 606, 0.5% 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 ONVOY, LLC - KY (1), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (1), BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (1). The earliest assignment on record here is 2010-02-17 and the most recent 2023-08-29. 2 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 606
3 holders of record
2 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
606-414 Onvoy ONVOY, LLC - KY 2023-08-29 yes yes
606-431 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC 2010-02-17 yes yes
606-754 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – 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
ONVOY, LLC - KY Onvoy 1 33.3%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 1 33.3%
BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL AT&T 1 33.3%

Frequently asked

Which prefixes belong to ELKHORN CY in area code 606?

3 blocks: 414, 431, 754. The table above gives the holder of each.

Which carriers have numbers in ELKHORN CY?

ONVOY, LLC - KY (1 block), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (1 block), BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is ELKHORN CY 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