Area Code Overview

Area code 645 is a geographic telephone area code in Florida that went into service on August 4, 2023. The geographic regions covered by this area code overlay has a population of approximately 1,509,616.

Overlay and Dialing Rules

Area Code: 645
State: Florida
Type: General Purpose Code
In Service Date: August 4, 2023
Overlay Complex: 305/645/786
Local Dialing Plan: This area does require you to dial the area code when calling locally.

Estimated Number of Assigned Phone Numbers in Area Code 645

This area code is ranked 339th out of 363 nationwide in estimated assigned phone numbers. Within the state territory it serves, it is ranked 21st out of 23.

676,000

Estimated Service-Type Mix of Assigned Phone Numbers in Area Code 645

Total assigned 676,000

Wireless

277,000 assigned

40.98%

Wireline and VoIP

345,000 assigned

51.04%

Other / Unclassified

54,000 assigned

7.99%

Estimated Share of Wireless Numbers Originally Assigned to Each Carrier in Area Code 645

Estimated assigned wireless phone numbers: 277,000

Numbers may later be ported to another carrier, but this chart reflects original number assignment, not current subscriber share.

AT&T Wireless 221,000 (79.78%)

Verizon Wireless 32,000 (11.55%)

T-Mobile 24,000 (8.66%)

Estimated Share of Wireline and VoIP Numbers Originally Assigned to Each Carrier in Area Code 645

Estimated assigned wireline and VoIP phone numbers: 345,000

Onvoy 160,000 (46.38%)

EON TELECOM, INC. 50,000 (14.49%)

Wide Voice 38,000 (11.01%)

Spectrum 33,000 (9.57%)

Bandwidth 30,000 (8.70%)

NUSO 18,000 (5.22%)

LIVEWIRE TELECOM, LLC 7,000 (2.03%)

Telnyx 7,000 (2.03%)

Lumen 2,000 (0.58%)

Other / Unclassified Assigned Numbering in Area Code 645

Estimated assigned other or unclassified phone numbers: 54,000

SHELCOMM 20,000 (37.04%)

HD CARRIER LLC 16,000 (29.63%)

IP HORIZON LLC 10,000 (18.52%)

TELEPORT COMMUNICATIONS AMERICA, LLC - FL 5,000 (9.26%)

OPENTACT INC. 1,000 (1.85%)

U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 1,000 (1.85%)

WAVENATION, LLC 1,000 (1.85%)

Cities and Towns in Area Code 645

Homestead, Florida Keystone Heights, Florida Miami, Florida Perrine, Florida

These geographic regions are also served by area codes 305 and 786.

How These Figures Were Built

These figures are estimates based on public phone-number assignment records. They are meant to show the likely mix of assigned phone numbers associated with area code 645, not live customer counts.

Some providers may have assigned phone numbers tied to this area code even if they do not actively market or sell service locally. These figures reflect public number-assignment records, not confirmed local service availability.

They also do not reflect number portability at the individual phone-number level, so some numbers may now be used on a different network or by a different provider than the original assignment records suggest.

Population data and locality matching provided by GeoNames.

Last refreshed: April 15, 2026 6:22 pm