305 area code
Miami area, Eastern Time.Area code 305 covers Miami, Keys, North Dade and 2 more places in Florida, on Eastern Time. 645 and 786 cover the same area.
Right now in Miami
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer)
Calling hours: Every day, 8 AM to 8 PM (Florida law)
Small talk
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Where 305 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 305 has 5. Each one's share is how many 305 numbers start there. Its biggest metro area is Miami-Fort Lauderdale-Pompano-West Palm Beach, FL.
- Miami62%
- Keys18%
- North Dade14%
- Perrine4%
Also: Homestead
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call a 305 number?
Sales calls to homes and cell phones have legal hours, set by Florida law. Hold every 305 number to them, since you can't tell a work line from a personal cell.
What applies to 305Every day, 8 AM to 8 PM
- Federal (TCPA and FTC rule)Every day, 8 AM to 9 PMCalls to residential and mobile numbers. Most calls to businesses are exempt from the FTC's rule.47 CFR 64.1200(c)(1); 16 CFR 310.4(c) (opens in a new tab)
- Florida lawEvery day, 8 AM to 8 PMAlso no more than 3 calls in 24 hours on the same subject.Fla. Stat. 501.616(6) (opens in a new tab)
Local time comes from the area code, not from where the person is today. Mobiles keep their number when they move. Calling hours here are a guide, not legal advice. Every state's calling hours, with sources
305 and 645 and 786
305 is one of the original area codes from 1947, and 407 and 954 were later split off from it. 305, 645 and 786 cover the same area, so new numbers can get any of them and neighbors can have different area codes. 305 holds 48% of the area's exchanges, about as many as 786. Local calls take all 10 digits.
- 1947305 starts
- 1988407 split off
- 1995954 split off
- 1998786 overlay
- 2023645 overlay
Source: NANPA area code database
Calling a list of 305 numbers?
Paste it into the free phone number validator. It checks every number, finds each one's time zone and sorts the list by who you can call right now.
305 area code FAQ
What area code is 305?
305 is a Florida area code for Miami, Keys, North Dade, Perrine and 1 more place.
What time zone is the 305 area code in?
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer).
Is 645 the same as 305?
Same area, different code. 305, 645 and 786 cover the same area (an overlay), so new numbers can get any of them and local calls take all 10 digits.
What are the calling hours for 305 numbers?
Every day, 8 AM to 8 PM, local time, under Florida law.
When did the 305 area code start?
In 1947: it's one of the original area codes.
Calling 305 numbers? Reach more of them.
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