645 Area Code — Florida
645 is a North American Numbering Plan area code for Florida, the United States. It covers about 2,379,311 people in 12 towns and 122 ZIP codes, including Miami, Homestead and Miami Beach.
| Field | Value |
|---|---|
| Area code | 645 |
| Country | United States (+1) |
| State / province | Florida |
| Type | Shares its towns with 786, 305 |
| Time zone | Eastern |
| Population covered | 2,379,311 |
| Towns covered | 12 |
| ZIP codes | 122 |
| Approx. centre | 25.697, -80.324 |
Where area code 645 is used
Area code 645 is assigned to Florida, the United States, inside the North American Numbering Plan. Numbers in the code are written (645) NXX-XXXX at home and +1 645 NXX-XXXX when dialled from outside Canada and the United States. Since the NANP moved to 10-digit dialling you must always include the area code, even for a local call.
Other area codes in this footprint: 786, 305. They serve towns in the same territory, so a single street can contain numbers from more than one code. That is normal in the NANP and does not change how you dial.
Towns and cities in area code 645
The 12 towns below are the largest in the 645 footprint, ranked by population. Every one of them links to its own page with the full list of area codes and ZIP codes for that town.
| Town | County | Population | ZIP codes |
|---|---|---|---|
| Miami | Miami-Dade County | 1,887,069 | 95 |
| Homestead | Miami-Dade County | 222,616 | 9 |
| Miami Beach | Miami-Dade County | 106,188 | 7 |
| North Miami Beach | Miami-Dade County | 43,718 | 1 |
| Miami Gardens | Miami-Dade County | 37,890 | 1 |
| Key West | Monroe County | 35,429 | 3 |
| Key Biscayne | Miami-Dade County | 14,791 | 1 |
| Key Largo | Monroe County | 14,770 | 1 |
| Marathon | Monroe County | 10,561 | 1 |
| Tavernier | Monroe County | 5,768 | 1 |
| Key Colony Beach | Monroe County | 511 | 1 |
| Coral Gables | Miami-Dade County | — | 1 |
Counties covered
| County | ZIP codes |
|---|---|
| Miami-Dade County | 114 |
| Monroe County | 7 |
| Putnam County | 1 |
Other area codes serving the same towns
Nearby area codes
How to dial area code 645
- Within North America: 645 + 7-digit number (645-NXX-XXXX). The leading 1 is optional on a mobile phone and required on most landlines for long-distance.
- From abroad: your country's international prefix, then 1, then 645, then the 7-digit number — for example 00 1 645 NXX-XXXX from most of Europe.
Frequently asked questions
What area code is 645?
645 is a North American Numbering Plan area code assigned to Florida, the United States. It covers about 2,379,311 people in 12 towns.
Is 645 a US or Canadian area code?
645 is a United States area code. Canada and the United States share the +1 country code, so both are part of the same numbering plan.
What time zone is area code 645 in?
Area code 645 is in the Eastern time zone.
Do I have to dial 10 digits?
Yes. Every NANP call now requires the area code plus the seven-digit number, even for a local call.