The 305 area code is Miami’s original area code. It covers Miami, the rest of Miami-Dade County and the Florida Keys. It is one of the first area codes ever created and one of the best known in the country.
Below are the facts: where 305 is, which cities use it, what time zone it follows, how it shrank from the whole of Florida to one corner of it, and what to do about unknown 305 calls.
305 Area Code Quick Facts
| State | Florida |
| Location | Miami, Miami-Dade County and the Florida Keys |
| Time zone | Eastern Time (UTC-5, UTC-4 during daylight saving time) |
| In service since | 1947 |
| Type | Original geographic area code |
| Shares its area with | 786 and 645 |
| Toll-free? | No |
Check another number with our free area code lookup tool.
Where Is the 305 Area Code Located?
Area code 305 is at the southern tip of Florida. It serves:
- Miami-Dade County, including Miami, Hialeah, Miami Beach, Miami Gardens, Coral Gables, Homestead, Doral and North Miami
- The Florida Keys in Monroe County, including Key Largo, Islamorada, Marathon and Key West
The mainland part of Monroe County is not in 305. It uses 239. Broward County to the north, with Fort Lauderdale and Hollywood, uses 954 and 754.
What Time Zone Is the 305 Area Code In?
The whole 305 area is on Eastern Time.
- Eastern Standard Time (EST), UTC-5, in winter
- Eastern Daylight Time (EDT), UTC-4, from mid March to early November
Miami shares its clock with New York and is three hours ahead of the West Coast.
History of the 305 Area Code
In 1947, 305 was the only area code in Florida. Every phone in the state used it. As the population grew, the state was divided step by step:
- 1953: 813 takes the west side of the peninsula, from Tampa Bay south.
- 1965: 904 is created for North Florida.
- April 16, 1988: 407 takes the Orlando area and the east coast from Palm Beach County north.
- September 11, 1995: 954 is split off for Broward County.
After 1995, 305 covered only Miami-Dade County and the Keys. It still ran short of numbers because of cell phones and pagers, so overlays followed:
- March 1, 1998: 786 is added as an overlay for Miami-Dade County.
- September 1, 2001: 786 is extended to the Florida Keys.
- August 4, 2023: 645 is added as a third code for the same area.
Why 305 Means Miami
Few area codes are as closely tied to a city as 305. Locals use “the 305” as a nickname for Miami, and the number shows up on clothing, in business names and in music. Because of that, a 305 number is seen as a sign of being established in the city. New 305 numbers are hard to get, and most new lines receive 786 or 645 instead.
Functionally there is no difference between the three. They cover the same streets and calls between them are local. Our 786 area code guide covers the overlay in more detail.
How to Dial a 305 Number
- From the US or Canada: 1 + 305 + the seven-digit number
- From another country: your exit code + 1 + 305 + the seven-digit number
Ten-digit dialing is required inside the area because three codes overlap.
Is a Call From 305 a Scam?
A 305 number is usually a real person or business in South Florida. Miami is a hub for travel, real estate, health care and trade with Latin America, so calls from 305 reach people all over the country.
Scammers know this too. Be wary of:
- Free vacation or cruise offers that need a card number “to hold your spot”
- Timeshare resale and debt relief pitches
- Medicare and health insurance robocalls
- Calls or texts in which someone claims a relative is in trouble and needs money
Caller ID can be spoofed, so a 305 number on your screen does not prove the call comes from Miami.
What to do with an unknown 305 call
- Let it go to voicemail.
- Never pay or share personal details on a call you did not start.
- Hang up and call the company on its official number.
- Block repeat callers.
- Report scams at reportfraud.ftc.gov and register at donotcall.gov.
- Forward spam texts to 7726 (SPAM).
How to Get a 305 Phone Number
- Carriers: a new Miami line may get 305 if one is free, but 786 and 645 are far more likely.
- VoIP and virtual number providers: some keep a stock of 305 numbers. You can search by area code and pick one if available.
- Porting: if you already own a 305 number, you can move it to another provider and keep it.
For how virtual numbers work, read our guide to virtual phone numbers. For a nationwide line, see the 800 area code guide.
Area Codes Near 305
| 786, 645 | Same area as 305: Miami-Dade County and the Florida Keys |
| 954, 754 | Broward County: Fort Lauderdale, Hollywood |
| 561, 728 | Palm Beach County: West Palm Beach, Boca Raton |
| 239 | Naples, Fort Myers and mainland Monroe County |
| 850 | Florida Panhandle |
See also our 850 area code guide.
305 Area Code FAQs
What city is area code 305?
Miami, Florida. It also covers the rest of Miami-Dade County and the Florida Keys, including Key West.
Is 305 only Miami?
No. It includes cities such as Hialeah, Miami Beach, Coral Gables and Homestead, plus the Keys.
What is the difference between 305 and 786?
None in coverage. 305 is the original code from 1947. 786 was added in 1998 when 305 was running out of numbers.
Is 305 a toll-free number?
No. Toll-free codes are 800, 833, 844, 855, 866, 877 and 888.
Can I still get a 305 number?
Sometimes. Supply is limited, so you are more likely to find one through a VoIP or virtual number provider than from a mobile carrier.
Final Word
The 305 area code has served Miami since 1947 and now shares its area with 786 and 645. It is on Eastern Time. If you know the caller, pick up. If not, let voicemail screen the call.
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