305 Area Code: Miami, Florida
Area code 305 serves Miami, Florida Keys and North Dade, Florida in the Eastern time zone, in service since 1947. Consumers have filed 6,517 unwanted-call complaints against 4,478 different 305 numbers, 525 of them with the FTC in the last 30 days. Look up the exact number that called you below.
Area code 305 at a glance
- State
- Florida
- Main cities
- Miami, Florida Keys, North Dade, Perrine
- Counties
- Miami-Dade County, Monroe County
- Local time
- —Eastern
- In service since
- 1947
- Local dialing
- 10 digits (area code + number)
- Exchanges
- 6 rate centers, 784 prefixes
Sources: NANPA area code and central office code records (refreshed weekly); cities and counties matched from US Census Bureau and USGS place names.
Most-reported 305 numbers
Ranked by FTC Do Not Call complaints this month, then all-time FTC and FCC complaints. Only numbers with enough complaints for a full report page are listed. Click one for what it was reported for and where.
- (305) 204-8234Dropped call / no message29 this month2026-10-11
- (305) 432-5142Dropped call / no message13 this month2026-10-09
- (305) 703-4471Debt reduction6 this month2026-09-30
- (305) 204-5311Dropped call / no message5 this month2026-10-14
- (305) 420-1921Medical & prescriptions5 this month2026-10-13
- (305) 599-2600Vacation & timeshares4 this month2026-10-19
- (305) 503-88073 this month2026-10-06
- (305) 564-8390Impostor (government, business, family)2 this month2026-10-08
- (305) 928-02661 report2026-07-27
- (305) 674-58800 reports
What calls from 305 numbers are about
1,823 FTC Do Not Call complaints about 305 numbers since Jul 24. The most common named subject is medical & prescriptions, at 20% of complaints (89% of those were recorded messages). Overall, 69% of callers who answered said the call was a robocall.
FTC complaint subjects
- Other / unspecified78843%
- Medical & prescriptions36620%
- Impostor (government, business, family)1689%
- Dropped call / no message1559%
- Debt reduction1086%
- No subject given925%
- Warranties & protection plans493%
FCC complaints by call type, last 2 years
- Prerecorded Voice14244%
- Live Voice13040%
- Text Message5316%
16% of recent FCC complaints about 305 numbers are about text messages, not calls.
When 305 spam calls come in
32% of complaints that give a call time describe calls between 10am and 1pm. 94% came Monday to Friday, most on Wednesdays, the pattern of call-center robocall campaigns that run on business hours. Times are as consumers reported them to the FTC.
By hour of the day
By day of the week
Is it getting worse?
609 FTC complaints about 305 numbers in the last four weeks, down 4% on the four weeks before. FCC complaints about 305 numbers peaked in 2015 (1,240); the FTC's daily Do Not Call data has carried most of the volume since mid-2026.
FTC complaints per week
FCC complaints per year
Years shown as '15 to '26; the current year is partial.
Who gets these calls
65% of the FTC complaints about 305 numbers came from people whose own phone number also starts with 305, and 81% from Florida. Calls that look local to the person receiving them are the signature of neighbor spoofing: robocallers display a number from your own area code because you're more likely to answer.
Where complainants live
- Florida1,47881%
- Georgia322%
- California292%
- Ohio231%
- New York211%
What people with 305 numbers report
People whose own number starts with 305 filed 4,212 FTC complaints since Jul 24. 28% were about calls showing another 305 number. The most common named subject was debt-relief pitches.
Area codes on the calls they reported
- 305 (same code)1,18228%
- 7861634%
- 833 (toll-free)1383%
- 877 (toll-free)1213%
- 888 (toll-free)1143%
Likely campaigns using 305 numbers
Groups of numbers that drew the same FTC complaint in the same pattern over the last 60 days. The grouping is statistical and doesn't identify who is calling.
Busiest 305 prefixes this month
FTC complaints in the last 30 days, grouped by the first six digits. When one prefix collects complaints about many different numbers, a campaign is usually cycling through that block. The carrier is who NANPA assigned the prefix to, not who made the calls.
| Prefix | Complaints | Numbers | Carrier | Exchange |
|---|---|---|---|---|
| (305) 204-xxxx | 39 | 7 | Comcast (Xfinity Voice) | Florida Keys |
| (305) 703-xxxx | 18 | 11 | Onvoy (Sinch) | North Dade |
| (305) 432-xxxx | 15 | 3 | Level 3 (Lumen) | Florida Keys |
| (305) 726-xxxx | 14 | 14 | Metro by T-Mobile (MetroPCS) | Miami |
| (305) 503-xxxx | 13 | 5 | PAETEC (Windstream) | Miami |
Carriers operating in 305
NANPA has assigned 784 305 prefixes (NPA-NXX central-office codes) across 6 rate centers: 37% to wireless carriers, 63% to landline and VoIP operators; 42% are pooled blocks shared by several carriers. 1 prefix was assigned in the last 12 months (newest 2026-03-31). The carrier holding a prefix is who the number was issued through. It says nothing about who is calling, since caller ID is routinely spoofed.
| Carrier | Type | Prefixes | Rate centers | Newest assignment |
|---|---|---|---|---|
| BellSouth (AT&T) | Incumbent landline (ILEC) | 363(46%) | 6 | — |
| AT&T Mobility (New Cingular Wireless PCS) | Wireless | 92(12%) | 4 | 2023-05-08 |
| Metro by T-Mobile (MetroPCS) | Wireless | 49(6%) | 5 | 2022-04-08 |
| Omnipoint Miami E License, LLC | Wireless | 43(5%) | 3 | 2023-05-08 |
| Spok, INC. | Wireless | 42(5%) | 1 | — |
| Abc Paging City Beepers, INC. | Wireless | 38(5%) | 3 | — |
| MCImetro (Verizon Business) | Competitive / VoIP (CLEC) | 36(5%) | 5 | 2005-09-03 |
| PAETEC (Windstream) | Competitive / VoIP (CLEC) | 17(2%) | 3 | 2022-03-08 |
| Teleport Communications America, LLC | Competitive / VoIP (CLEC) | 16(2%) | 4 | 2026-03-31 |
| Bandwidth.com | Competitive / VoIP (CLEC) | 15(2%) | 2 | 2021-12-08 |
| Verizon Wireless (Cellco Partnership) | Wireless | 15(2%) | 2 | 2022-06-08 |
| Onvoy (Sinch) | Competitive / VoIP (CLEC) | 14(2%) | 3 | 2023-06-26 |
Largest rate centers (exchanges) by prefixes: Miami (488), Florida Keys (138), North Dade (112), Perrine (32), Homestead (13). Source: NANPA Central Office Code Utilized Assignments (public, refreshed weekly).
What to do about calls from 305 numbers
Before you call back
- Medical & prescriptions is the top named complaint here. Don't confirm your Medicare or insurance number to a caller. Medicare won't cold-call you to sell braces, test kits or plans. Read about Medicare scam calls.
- Look up the full number above. A missed call from 305 with no voicemail is usually a robocall; anyone who needs you will leave a message.
- If it looks like a neighbor's number, it may be spoofed. See calls from your own area code.
- Block repeat callers: iPhone, Android, or your carrier's free filter (Verizon, AT&T, T-Mobile).
Report it in Florida
- Unwanted sales calls and robocalls: donotcall.gov (FTC). Scams and fraud: ReportFraud.ftc.gov.
- Spoofing, texts and call-blocking problems: FCC consumer complaints.
- State complaints: Florida Attorney General.
- Florida is one of the states that maintains its own Do Not Call registry alongside the federal National Do Not Call Registry, so telemarketers calling Florida numbers are expected to check both lists. Registering on the federal list at donotcall.gov is free and never expires; the state list is administered separately and may have its own registration process and renewal period.
Your FTC and FCC reports are published (without your name or number) in the datasets this page is built from. How to report unwanted calls.
Area code 305: questions answered from the data
Where is area code 305?
Area code 305 serves Miami, Florida Keys and North Dade, Florida, covering Miami-Dade County and Monroe County. It has been in service since 1947.
What time zone is area code 305 in?
Area code 305 is in the Eastern time zone (UTC−5, or UTC−4 during daylight saving time). The current local time is shown at the top of this page.
Which area codes overlay 305?
786 (in service 1998) and 645 (in service 2023) serve the same area as 305. New numbers there can be issued with any of these codes, and local calls need all 10 digits. A spoofed call can display any of them.
What are calls from 305 numbers usually about?
Since Jul 24, consumers filed 1,823 FTC Do Not Call complaints about 305 numbers. The most common named subject was medical & prescriptions: 20% of complaints, 89% of them recorded messages. Across all subjects, 69% of callers who answered the question said the call was a robocall.
When do 305 spam calls happen?
32% of the complaints that give a call time describe calls between 10am and 1pm, and 94% came on weekdays, most often on Wednesday. Times are as consumers reported them.
Are calls from 305 numbers really local?
Not necessarily. 65% of the FTC complaints about 305 numbers came from people whose own phone number also starts with 305, and 81% from Florida. Calls that look local to the person receiving them are the signature of neighbor spoofing: robocallers display a number from your own area code because you're more likely to answer.
Are 305 robocalls increasing?
In the four weeks to Oct 15, consumers filed 609 FTC complaints about 305 numbers, 4% fewer than the four weeks before.
How do I report a 305 scam call in Florida?
Report unwanted sales calls and robocalls to the FTC at donotcall.gov, and scams to ReportFraud.ftc.gov. The FCC takes complaints at consumercomplaints.fcc.gov. In Florida, the Florida Attorney General also handles consumer complaints about scam calls. Reports feed the public data this page is built from.
Overlay and nearby area codes
Sources: FTC Do Not Call complaints (unverified consumer reports), published every weekday and available here from Jul 24; FCC Consumer Complaint Data, public record, imported nightly; NANPA numbering records. A number appearing here means consumers reported calls that displayed it. Caller ID can be spoofed.