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

NORTH DADE prefixes in area code 645

NANPA records 14 assigned NXX blocks to rate center NORTH DADE in area code 645, 17.7% 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 (5), ONVOY, LLC - FL (3), EON TELECOM, INC. (1). The earliest assignment on record here is 2023-11-03 and the most recent 2026-05-04. 14 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.

14 assigned blocks – 17.7% of 645
8 holders of record
14 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
645-210 EON TELECOM, INC. 2024-03-04 yes yes
645-218 Onvoy ONVOY, LLC - FL 2024-04-29 yes yes
645-221 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2024-06-27 yes yes
645-228 Bandwidth BANDWIDTH.COM CLEC, LLC - FL 2024-09-05 yes yes
645-237 T-Mobile OMNIPOINT MIAMI E LICENSE, LLC 2024-10-23 yes yes
645-238 Onvoy ONVOY, LLC - FL 2024-11-08 yes yes
645-239 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2024-11-08 yes yes
645-247 IP HORIZON LLC 2025-04-11 yes yes
645-252 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2026-03-04 yes yes
645-254 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2026-04-29 yes yes
645-255 AT&T NEW CINGULAR WIRELESS PCS, LLC - GA 2026-05-04 yes yes
645-500 Charter ONVOY SPECTRUM, LLC 2024-01-11 yes yes
645-645 Onvoy ONVOY, LLC - FL 2023-11-03 yes yes
645-800 WIDE VOICE, LLC - FL 2024-02-09 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 5 35.7%
ONVOY, LLC - FL Onvoy 3 21.4%
EON TELECOM, INC. – 1 7.1%
BANDWIDTH.COM CLEC, LLC - FL Bandwidth 1 7.1%
OMNIPOINT MIAMI E LICENSE, LLC T-Mobile 1 7.1%
IP HORIZON LLC – 1 7.1%
ONVOY SPECTRUM, LLC Charter 1 7.1%
WIDE VOICE, LLC - FL – 1 7.1%

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 NORTH DADE in area code 645?

14 blocks: 210, 218, 221, 228, 237, 238, 239, 247, 252, 254, 255, 500 and 2 more, all listed in the table above.

Which carriers have numbers in NORTH DADE?

NEW CINGULAR WIRELESS PCS, LLC - GA (5 blocks), ONVOY, LLC - FL (3 blocks), EON TELECOM, INC. (1 block), BANDWIDTH.COM CLEC, LLC - FL (1 block), OMNIPOINT MIAMI E LICENSE, LLC (1 block), IP HORIZON 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 NORTH DADE 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