Area Code 645 Phone Number
for Your Business
Get a local 645 number for your business in Miami, FL. Cloud VoIP with SMS, an auto attendant (IVR), and more — starting at $30/ext/mo. No contracts.
What Is Area Code 645?
Area code 645 is a North American telephone area code serving Miami, Florida and 3 other cities in the region. It has been in service since August 4, 2023 and operates on Eastern Time. It is part of the 305/645/786 overlay complex. Businesses operating in the 645 area code region use local numbers to build trust with customers, improve answer rates, and establish a professional local presence.
With Zonitel, you can get a new 645 area code number or port your existing one with guided onboarding — no hardware required. Your team can make and receive calls from any device using the Zonitel mobile app or web portal.
Area Code 645 at a Glance
- Region
- Miami-Dade (overlay) / Keys, Florida
- In service
- Since August 4, 2023
- Time zone
- Eastern Time
- History
- Added on August 4, 2023 as an overlay of 305
- Telemarketing hours
- 8 a.m.–9 p.m. Eastern Time for residential numbers (TCPA, 47 CFR 64.1200(c)(1))
Cities Served by Area Code 645
Why Your Business Needs a 645 Local Number
A local number tells customers you're part of the community. People in Miami are more likely to pick up a call from a 645 number they recognize than from an unfamiliar out-of-area number.
Everything Included With Your 645 Number
Zonitel is not just a phone number — it's a complete cloud business phone system. Every plan includes:
Frequently Asked Questions About Area Code 645
What cities use area code 645?
Area code 645 serves the Miami-Dade (overlay) / Keys area of Florida. Cities in the 645 region include Miami, FL; Coral Gables, FL; Doral, FL; Hialeah, FL.
Is area code 645 an overlay?
Yes. 645 is part of the 305/645/786 overlay, so new numbers in this region can come from any of those area codes, and local calls require 10-digit dialing.
What time zone is area code 645 in?
Area code 645 is in Eastern Time. Telemarketing calls to residential 645 numbers are limited to 8 a.m.–9 p.m. Eastern Time under the TCPA (47 CFR 64.1200(c)(1)).
Can I get a 645 number for my business without moving there?
Yes. With Zonitel's cloud VoIP, you can get a 645 area code number regardless of where your business is physically located. This lets you establish a local presence in Miami without a physical office.
Can I keep my existing 645 number and switch to Zonitel?
Yes. Number porting is free. Porting commonly takes 5–10 business days depending on your current carrier, and your old service stays active until the coordinated cutover.
How much does a 645 business phone number cost?
Zonitel plans start at $30/extension/month plus tax, with no setup fees and no contracts. Your 645 local number is included in the plan.
Get Your 645 Area Code Number Today
30-day free trial. No annual contract required. Guided onboarding.