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

KEYS prefixes in area code 645

NANPA records 9 assigned NXX blocks to rate center KEYS in area code 645, 11.4% of the 79 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. 8 holders hold those blocks, the largest being NEW CINGULAR WIRELESS PCS, LLC - GA (2), EON TELECOM, INC. (1), SHELCOMM (1). The earliest assignment on record here is 2023-10-19 and the most recent 2026-08-24. 8 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 305, 786 – overlay codes cover the same geography, so a rate center is served by all of them.

9 assigned blocks – 11.4% of 645
8 holders of record
8 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
645-206 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2025-02-14 yes yes
645-209 EON TELECOM, INC. 2024-03-04 yes yes
645-227 SHELCOMM 2024-09-03 no yes
645-242 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2025-04-09 yes yes
645-245 IP HORIZON LLC 2025-04-10 yes yes
645-257 Onvoy ONVOY, LLC - FL 2026-08-24 yes no
645-300 TERRA NOVA TELECOM, INC. - FL 2023-11-14 yes yes
645-678 Charter ONVOY SPECTRUM, LLC 2024-08-30 yes yes
645-888 WIDE VOICE, LLC - FL 2023-10-19 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
NEW CINGULAR WIRELESS PCS, LLC - GA AT&T 2 22.2%
EON TELECOM, INC. – 1 11.1%
SHELCOMM – 1 11.1%
IP HORIZON LLC – 1 11.1%
ONVOY, LLC - FL Onvoy 1 11.1%
TERRA NOVA TELECOM, INC. - FL – 1 11.1%
ONVOY SPECTRUM, LLC Charter 1 11.1%
WIDE VOICE, LLC - FL – 1 11.1%

Same rate center in other codes

Overlay codes cover the same geography, so one rate center is served by all of them.

Frequently asked

Which prefixes belong to KEYS in area code 645?

9 blocks: 206, 209, 227, 242, 245, 257, 300, 678, 888. The table above gives the holder of each.

Which carriers have numbers in KEYS?

NEW CINGULAR WIRELESS PCS, LLC - GA (2 blocks), EON TELECOM, INC. (1 block), SHELCOMM (1 block), IP HORIZON LLC (1 block), ONVOY, LLC - FL (1 block), TERRA NOVA TELECOM, INC. - FL (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is KEYS 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 645

All 79 prefixes in 645