283 Area Code: Cincinnati, Ohio
Area code 283 serves Cincinnati, Hamilton and Little Miami, Ohio in the Eastern time zone, in service since 2023. Consumers have filed 203 unwanted-call complaints against 156 different 283 numbers, 43 of them with the FTC in the last 30 days. Look up the exact number that called you below.
Area code 283 at a glance
- State
- Ohio
- Main cities
- Cincinnati, Hamilton, Little Miami, Clermontville, Mason, Middletown + 16 more
- Counties
- Hamilton County, Warren County, Clermont County, Butler County + 2 more
- Local time
- —Eastern
- In service since
- April 28, 2023
- Overlay of
- 513
- Local dialing
- 10 digits (area code + number)
- Exchanges
- 22 rate centers, 48 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 283 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 283 numbers are about
156 FTC Do Not Call complaints about 283 numbers since Jul 24. The most common named subject is debt-relief pitches, at 29% of complaints (93% of those were recorded messages). Overall, 74% of callers who answered said the call was a robocall.
FTC complaint subjects
- Other / unspecified5133%
- Debt reduction4629%
- No subject given1812%
- Dropped call / no message1610%
- Impostor (government, business, family)128%
- Medical & prescriptions64%
- Vacation & timeshares32%
FCC complaints by call type, last 2 years
- Prerecorded Voice1667%
- Live Voice521%
- Text Message313%
13% of recent FCC complaints about 283 numbers are about text messages, not calls.
When 283 spam calls come in
37% of complaints that give a call time describe calls between 12pm and 3pm. 92% 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?
49 FTC complaints about 283 numbers in the last four weeks, down 18% on the four weeks before. FCC complaints about 283 numbers peaked in 2026 (13); 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
Only 44% of the FTC complaints about 283 numbers came from Ohio residents; the most came from Florida, New York and California. 283 numbers are being used for nationwide campaigns, so the area code says little about where the caller is.
Where complainants live
- Ohio6944%
- Florida1510%
- New York85%
- California85%
- Texas74%
Busiest 283 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 |
|---|---|---|---|---|
| (283) 200-xxxx | 15 | 3 | Onvoy (Sinch) | Trenton |
| (283) 202-xxxx | 9 | 7 | Onvoy (Sinch) | Morrow |
Carriers operating in 283
NANPA has assigned 48 283 prefixes (NPA-NXX central-office codes) across 22 rate centers: 29% to wireless carriers, 63% to landline and VoIP operators; 100% are pooled blocks shared by several carriers. 6 prefixes were assigned in the last 12 months (newest 2026-08-26). 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 |
|---|---|---|---|---|
| Onvoy (Sinch) | Competitive / VoIP (CLEC) | 19(40%) | 17 | 2026-08-26 |
| AT&T Mobility (New Cingular Wireless PCS) | Wireless | 9(19%) | 5 | 2025-12-16 |
| Wide Voice, LLC | Competitive / VoIP (CLEC) | 5(10%) | 5 | 2023-11-17 |
| T-Mobile USA | Wireless | 4(8%) | 2 | 2025-04-03 |
| Five9, INC. | Unclassified | 2(4%) | 2 | 2024-10-08 |
| Boost Subscriberco L.L.C. | Wireless | 1(2%) | 1 | 2026-01-23 |
| Callworks Corporation | Unclassified | 1(2%) | 1 | 2024-04-17 |
| Commio, LLC | Competitive / VoIP (CLEC) | 1(2%) | 1 | 2024-03-05 |
| Ip Horizon LLC | Competitive / VoIP (CLEC) | 1(2%) | 1 | 2024-02-06 |
| Leap Telecom, LLC | Competitive / VoIP (CLEC) | 1(2%) | 1 | 2024-10-01 |
| Nuso, LLC | Competitive / VoIP (CLEC) | 1(2%) | 1 | 2023-08-11 |
| Onvoy (Sinch) | Competitive / VoIP (CLEC) | 1(2%) | 1 | 2023-07-06 |
Largest rate centers (exchanges) by prefixes: Cincinnati (14), Hamilton (6), Clermontville (3), Little Miami (3), Lebanon (2), Mason (2), Middletown (2), Trenton (2), Bethany (1), Bethel (1). Source: NANPA Central Office Code Utilized Assignments (public, refreshed weekly).
What to do about calls from 283 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 283 with no voicemail is usually a robocall; anyone who needs you will leave a message.
- Block repeat callers: iPhone, Android, or your carrier's free filter (Verizon, AT&T, T-Mobile).
Report it in Ohio
- 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: Ohio Attorney General.
- Ohio formally adopted the FTC's National Do Not Call Registry as its own state list rather than running a separate one, so a single free registration at donotcall.gov covers you. State authorities can still enforce against telemarketers who ignore it, in addition to any federal penalty.
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 283: questions answered from the data
Where is area code 283?
Area code 283 serves Cincinnati, Hamilton and Little Miami, Ohio, covering Hamilton County, Warren County and Clermont County and 3 more counties. It has been in service since April 28, 2023.
What time zone is area code 283 in?
Area code 283 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.
What are calls from 283 numbers usually about?
Since Jul 24, consumers filed 156 FTC Do Not Call complaints about 283 numbers. The most common named subject was debt-relief pitches: 29% of complaints, 93% of them recorded messages. Across all subjects, 74% of callers who answered the question said the call was a robocall.
When do 283 spam calls happen?
37% of the complaints that give a call time describe calls between 12pm and 3pm, and 92% came on weekdays, most often on Wednesday. Times are as consumers reported them.
Are calls from 283 numbers really local?
Not necessarily. Only 44% of the FTC complaints about 283 numbers came from Ohio residents; the most came from Florida, New York and California. 283 numbers are being used for nationwide campaigns, so the area code says little about where the caller is.
Are 283 robocalls increasing?
In the four weeks to Oct 15, consumers filed 49 FTC complaints about 283 numbers, 18% fewer than the four weeks before.
How do I report a 283 scam call in Ohio?
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 Ohio, the Ohio 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.