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

CHESAPKECY prefixes in area code 667

NANPA records 3 assigned NXX blocks to rate center CHESAPKECY in area code 667, 0.7% of the 454 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 CORE COMMUNICATIONS, INC.- MD (1), TON80 COMMUNICATIONS, LLC (1), TWILIO INTERNATIONAL, INC. (1). The earliest assignment on record here is 2018-06-12 and the most recent 2022-03-30. 3 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots. The same rate center name also appears in area codes 410, 443 – overlay codes cover the same geography, so a rate center is served by all of them.

3 assigned blocks – 0.7% of 667
3 holders of record
3 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
667-247 CORE COMMUNICATIONS, INC.- MD 2018-06-12 yes yes
667-365 TON80 COMMUNICATIONS, LLC 2021-05-07 yes yes
667-897 Twilio TWILIO INTERNATIONAL, INC. 2022-03-30 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
CORE COMMUNICATIONS, INC.- MD – 1 33.3%
TON80 COMMUNICATIONS, LLC – 1 33.3%
TWILIO INTERNATIONAL, INC. Twilio 1 33.3%

Frequently asked

Which prefixes belong to CHESAPKECY in area code 667?

3 blocks: 247, 365, 897. The table above gives the holder of each.

Which carriers have numbers in CHESAPKECY?

CORE COMMUNICATIONS, INC.- MD (1 block), TON80 COMMUNICATIONS, LLC (1 block), TWILIO INTERNATIONAL, INC. (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is CHESAPKECY 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 667

All 454 prefixes in 667