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

CALVERT CY prefixes in area code 270

NANPA records 3 assigned NXX blocks to rate center CALVERT CY in area code 270, 0.4% of the 769 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. 2 holders hold those blocks, the largest being WINDSTREAM KENTUCKY EAST, INC. - LONDON (2), TWC IP ENABLED SERVICES, LLC (1). The earliest assignment on record here is 2006-04-18 and the most recent 2017-11-16. 2 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

3 assigned blocks – 0.4% of 270
2 holders of record
2 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
270-395 Windstream WINDSTREAM KENTUCKY EAST, INC. - LONDON – no yes
270-552 Windstream WINDSTREAM KENTUCKY EAST, INC. - LONDON 2017-11-16 yes yes
270-909 Charter TWC IP ENABLED SERVICES, LLC 2006-04-18 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
WINDSTREAM KENTUCKY EAST, INC. - LONDON Windstream 2 66.7%
TWC IP ENABLED SERVICES, LLC Charter 1 33.3%

Frequently asked

Which prefixes belong to CALVERT CY in area code 270?

3 blocks: 395, 552, 909. The table above gives the holder of each.

Which carriers have numbers in CALVERT CY?

WINDSTREAM KENTUCKY EAST, INC. - LONDON (2 blocks), TWC IP ENABLED SERVICES, 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 CALVERT 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 270

All 769 prefixes in 270