645 area code
Where the 645 area code is, its overlay and how to dial a +1 645 number from anywhere.
The 645 area code is in Florida, United States (Eastern (ET)). To call from abroad: +1 645 555-0123. It is an overlay, so all 10 digits are dialled.
The 645 area code is a geographic North American Numbering Plan (NANP) code covering Florida. It has been in service since 24-Feb-2022 and sits in the Eastern (ET) time zone.
How to dial a 645 number
+1 645 555-01231 645 555-0123645 555-0123Other Florida area codes
Frequently asked questions
Where is the 645 area code?
The 645 area code is in Florida, United States (Eastern (ET)).
Is 645 an overlay area code?
Yes. 645 overlays the same region as 305, 786, so callers dial all 10 digits.
Do I have to dial 10 digits for 645?
Yes — dial the area code plus the seven-digit number.
How do I call a 645 number from another country?
Dial your exit code (or +), then 1, then 645, then the number: +1 645 555-0123.
Source: NANPA numbering plan. An area code covers a region, not a precise address — a 645 number does not pinpoint a street or ZIP code.
Number holders in area code 645
Each prefix (the three digits after the area code) is assigned by NANPA to one telephone company. 92 prefixes are in use in 645, shared by 21 companies. The largest holders:
| Company | Prefixes | Share |
|---|---|---|
| New Cingular Wireless PCS, LLC | 17 | 18% |
| Onvoy, LLC | 15 | 16% |
| Wide Voice, LLC | 9 | 10% |
| Multiple Ocn Listing | 9 | 10% |
| Eon Telecom, Inc. | 5 | 5% |
| 5 | 5% |
Source: NANPA central office code assignments. A number keeps its original prefix when it is ported to another carrier.
Complaints about 645 numbers
- Reports to the FTC, last 30 days
- 80
- Recorded messages or robocalls
- 53%
- Rank among area codes
- #381 of 670
- Most reported subjects
- Other (30)
- Reducing your debt (credit cards, mortgage, student loans) (10)
- Calls pretending to be government, businesses, or family and friends (10)
Period Aug 26 – Sep 24, 2026. These are the numbers shown on the caller ID of the reported calls; many are spoofed and do not belong to the real caller.
Source: US Federal Trade Commission, Do Not Call reported calls data (daily files).
All US area codes United States +1 Map of area code 645 — cities & rate centres