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

CHAPLIN prefixes in area code 502

NANPA records 5 assigned NXX blocks to rate center CHAPLIN in area code 502, 0.7% of the 735 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. 5 holders hold those blocks, the largest being LEVEL 3 COMMUNICATIONS, LLC - KY (1), ONVOY, LLC - KY (1), AT&T ENTERPRISES, LLC (1). The earliest assignment on record here is 2005-03-03 and the most recent 2025-02-10. 5 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

5 assigned blocks – 0.7% of 502
5 holders of record
5 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
502-383 Lumen LEVEL 3 COMMUNICATIONS, LLC - KY 2005-03-03 yes yes
502-399 Onvoy ONVOY, LLC - KY 2021-04-15 yes yes
502-617 AT&T AT&T ENTERPRISES, LLC 2011-03-03 yes yes
502-673 AT&T BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL – yes yes
502-879 EON TELECOM, INC. 2025-02-10 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
LEVEL 3 COMMUNICATIONS, LLC - KY Lumen 1 20%
ONVOY, LLC - KY Onvoy 1 20%
AT&T ENTERPRISES, LLC AT&T 1 20%
BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL AT&T 1 20%
EON TELECOM, INC. – 1 20%

Frequently asked

Which prefixes belong to CHAPLIN in area code 502?

5 blocks: 383, 399, 617, 673, 879. The table above gives the holder of each.

Which carriers have numbers in CHAPLIN?

LEVEL 3 COMMUNICATIONS, LLC - KY (1 block), ONVOY, LLC - KY (1 block), AT&T ENTERPRISES, LLC (1 block), BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL (1 block), EON TELECOM, 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 CHAPLIN 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 502

All 735 prefixes in 502