904 Area Code: Jacksonville, Florida
Area code 904 serves Jacksonville, Saint Johns and Fernandina Beach, Florida in the Eastern time zone, in service since 1965. Consumers have filed 7,592 unwanted-call complaints against 6,420 different 904 numbers, 965 of them with the FTC in the last 30 days. Look up the exact number that called you below.
Area code 904 at a glance
- State
- Florida
- Main cities
- Jacksonville, Saint Johns, Fernandina Beach, Orange Park, Jacksonville Beach, Middleburg + 12 more
- Counties
- Duval County, St. Johns County, Clay County, Nassau County + 2 more
- Local time
- —Eastern
- In service since
- July 11, 1965
- Overlay code
- 324 (2024)
- Local dialing
- 10 digits (area code + number)
- Exchanges
- 20 rate centers, 785 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 904 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.
What calls from 904 numbers are about
3,534 FTC Do Not Call complaints about 904 numbers since Jul 24. The most common named subject is debt-relief pitches, at 13% of complaints (89% of those were recorded messages). Overall, 59% of callers who answered said the call was a robocall.
FTC complaint subjects
- Other / unspecified1,45541%
- Dropped call / no message73121%
- Debt reduction46113%
- Impostor (government, business, family)35510%
- Medical & prescriptions2387%
- No subject given1725%
- Warranties & protection plans431%
FCC complaints by call type, last 2 years
- Live Voice15241%
- Prerecorded Voice12835%
- Text Message8924%
24% of recent FCC complaints about 904 numbers are about text messages, not calls.
When 904 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?
956 FTC complaints about 904 numbers in the last four weeks, down 25% on the four weeks before. FCC complaints about 904 numbers peaked in 2017 (580); 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
59% of the FTC complaints about 904 numbers came from people whose own phone number also starts with 904, and 68% 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
- Florida2,39468%
- Michigan1554%
- California1284%
- Oklahoma682%
- Georgia682%
What people with 904 numbers report
People whose own number starts with 904 filed 5,382 FTC complaints since Jul 24. 39% were about calls showing another 904 number. The most common named subject was debt-relief pitches.
Area codes on the calls they reported
- 904 (same code)2,08039%
- 888 (toll-free)2615%
- 833 (toll-free)2324%
- 855 (toll-free)1833%
- 877 (toll-free)1713%
Likely campaigns using 904 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 904 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 |
|---|---|---|---|---|
| (904) 903-xxxx | 39 | 27 | Verizon Wireless (Cellco Partnership) | Jacksonville |
| (904) 902-xxxx | 22 | 19 | Onvoy (Sinch) | Jacksonville |
| (904) 879-xxxx | 21 | 21 | Windstream | Callahan |
| (904) 481-xxxx | 19 | 17 | Vonage | Saint Johns |
| (904) 920-xxxx | 17 | 16 | Onvoy (Sinch) | Jacksonville |
Carriers operating in 904
NANPA has assigned 785 904 prefixes (NPA-NXX central-office codes) across 20 rate centers: 35% to wireless carriers, 65% to landline and VoIP operators; 72% are pooled blocks shared by several carriers. 2 prefixes were assigned in the last 12 months (newest 2026-06-30). 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) | 215(27%) | 12 | 2016-09-14 |
| Powertel Jacksonville Licenses, INC. | Wireless | 88(11%) | 6 | 2024-10-16 |
| AT&T Mobility (New Cingular Wireless PCS) | Wireless | 72(9%) | 5 | 2025-04-16 |
| Verizon Wireless (Cellco Partnership) | Wireless | 53(7%) | 5 | 2024-01-15 |
| Onvoy (Sinch) | Competitive / VoIP (CLEC) | 51(6%) | 14 | 2026-06-30 |
| Metro by T-Mobile (MetroPCS) | Wireless | 40(5%) | 5 | 2022-09-09 |
| PAETEC (Windstream) | Competitive / VoIP (CLEC) | 40(5%) | 9 | 2022-07-06 |
| Level 3 (Lumen) | Competitive / VoIP (CLEC) | 27(3%) | 9 | 2022-02-18 |
| Teleport Communications America, LLC | Competitive / VoIP (CLEC) | 25(3%) | 5 | 2024-02-27 |
| Comcast (Xfinity Voice) | Competitive / VoIP (CLEC) | 22(3%) | 13 | 2025-04-03 |
| Onvoy (Sinch) | Competitive / VoIP (CLEC) | 18(2%) | 13 | 2025-04-18 |
| Bandwidth.com | Competitive / VoIP (CLEC) | 14(2%) | 6 | 2022-09-12 |
Largest rate centers (exchanges) by prefixes: Jacksonville (483), Saint Johns (74), Fernandina Beach (35), Orange Park (34), Jacksonville Beach (22), Middleburg (19), Ponte Vedra Beach (17), Starke (14), Green Cove Springs (13), Yulee (12). Source: NANPA Central Office Code Utilized Assignments (public, refreshed weekly).
What to do about calls from 904 numbers
Before you call back
- Debt reduction is the top named complaint here. Don't pay upfront fees for debt relief; the FTC's Telemarketing Sales Rule bans them. Talk to your lender or a nonprofit credit counselor instead. Read about debt-relief robocalls.
- Look up the full number above. A missed call from 904 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 904: questions answered from the data
Where is area code 904?
Area code 904 serves Jacksonville, Saint Johns and Fernandina Beach, Florida, covering Duval County, St. Johns County and Clay County and 3 more counties. It has been in service since July 11, 1965.
What time zone is area code 904 in?
Area code 904 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 904?
324 (in service 2024) serves the same area as 904. 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 904 numbers usually about?
Since Jul 24, consumers filed 3,534 FTC Do Not Call complaints about 904 numbers. The most common named subject was debt-relief pitches: 13% of complaints, 89% of them recorded messages. Across all subjects, 59% of callers who answered the question said the call was a robocall.
When do 904 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 904 numbers really local?
Not necessarily. 59% of the FTC complaints about 904 numbers came from people whose own phone number also starts with 904, and 68% 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 904 robocalls increasing?
In the four weeks to Oct 20, consumers filed 956 FTC complaints about 904 numbers, 25% fewer than the four weeks before.
How do I report a 904 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.
Other Florida 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.