475 Area Code: New Haven, Connecticut
Area code 475 serves New Haven, Stamford and Bridgeport, Connecticut in the Eastern time zone, in service since 2009. Consumers have filed 2,187 unwanted-call complaints against 1,849 different 475 numbers, 316 of them with the FTC in the last 30 days. Look up the exact number that called you below.
Area code 475 at a glance
- State
- Connecticut
- Main cities
- New Haven, Stamford, Bridgeport, Norwalk, Ansonia–Derby, Waterbury + 26 more
- Counties
- Western Connecticut Planning Region, South Central Connecticut Planning Region, Naugatuck Valley Planning Region, Greater Bridgeport Planning Region
- Local time
- —Eastern
- In service since
- December 12, 2009
- Overlay of
- 203
- Local dialing
- 10 digits (area code + number)
- Exchanges
- 32 rate centers, 292 prefixes
Sources: NANPA area code and central office code records (refreshed weekly); cities and counties matched from US Census Bureau and USGS place names.
Reported 475 numbers
No single 475 number has enough complaints yet for a full report page, so none are listed. Look up the exact number that called you: the lookup works on every US number, whether or not it has complaint history.
What calls from 475 numbers are about
982 FTC Do Not Call complaints about 475 numbers since Jul 24. The most common named subject is debt-relief pitches, at 22% of complaints (90% of those were recorded messages). Overall, 74% of callers who answered said the call was a robocall.
FTC complaint subjects
- Other / unspecified34936%
- Dropped call / no message22123%
- Debt reduction21222%
- No subject given778%
- Impostor (government, business, family)667%
- Warranties & protection plans121%
- Home improvement & cleaning111%
FCC complaints by call type, last 2 years
- Prerecorded Voice16261%
- Live Voice7127%
- Text Message3112%
12% of recent FCC complaints about 475 numbers are about text messages, not calls.
When 475 spam calls come in
37% of complaints that give a call time describe calls between 10am and 1pm. 92% came Monday to Friday, most on Thursdays, 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?
366 FTC complaints about 475 numbers in the last four weeks, up 16% on the four weeks before. FCC complaints about 475 numbers peaked in 2024 (172); 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 49% of the FTC complaints about 475 numbers came from Connecticut residents; the most came from Florida, Texas and California. 475 numbers are being used for nationwide campaigns, so the area code says little about where the caller is.
Where complainants live
- Connecticut47849%
- Florida485%
- Texas384%
- California303%
- New York283%
What people with 475 numbers report
People whose own number starts with 475 filed 141 FTC complaints since Jul 24. 30% were about calls showing another 475 number. The most common named subject was impostor calls (people pretending to be a government agency, a business or family).
Area codes on the calls they reported
- 475 (same code)4230%
- 833 (toll-free)96%
- 77464%
- 866 (toll-free)64%
- 47064%
Likely campaigns using 475 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 475 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 |
|---|---|---|---|---|
| (475) 387-xxxx | 45 | 37 | AT&T Mobility (New Cingular Wireless PCS) | New Haven |
| (475) 766-xxxxcampaign | 26 | 26 | Fractel, LLC | New Haven |
| (475) 200-xxxx | 21 | 19 | Peerless Network | Huntington |
| (475) 375-xxxx | 17 | 15 | Onvoy (Sinch) | New Haven |
| (475) 357-xxxx | 16 | 14 | Onvoy (Sinch) | Milford |
Carriers operating in 475
NANPA has assigned 292 475 prefixes (NPA-NXX central-office codes) across 32 rate centers: 39% to wireless carriers, 60% to landline and VoIP operators; 100% are pooled blocks shared by several carriers. 12 prefixes were assigned in the last 12 months (newest 2026-10-12). 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) | 65(22%) | 28 | 2026-10-12 |
| Verizon Wireless (Cellco Partnership) | Wireless | 47(16%) | 7 | 2023-02-14 |
| Omnipoint Communications, INC. | Wireless | 40(14%) | 11 | 2026-09-23 |
| Bandwidth.com | Competitive / VoIP (CLEC) | 18(6%) | 16 | 2021-11-18 |
| AT&T Mobility (New Cingular Wireless PCS) | Wireless | 18(6%) | 8 | 2025-03-26 |
| Ton80 Communications, LLC | Competitive / VoIP (CLEC) | 17(6%) | 17 | 2022-01-27 |
| Peerless Network | Competitive / VoIP (CLEC) | 15(5%) | 11 | 2019-10-01 |
| Fractel, LLC | Competitive / VoIP (CLEC) | 12(4%) | 11 | 2022-03-09 |
| Barr Tel Usa, INC. | Unclassified | 5(2%) | 5 | 2022-03-02 |
| Cablevision Lightpath, INC. | Competitive / VoIP (CLEC) | 5(2%) | 4 | 2026-06-26 |
| Metro by T-Mobile (MetroPCS) | Wireless | 5(2%) | 3 | 2018-07-11 |
| Frontier Communications | Incumbent landline (ILEC) | 5(2%) | 3 | 2014-07-22 |
Largest rate centers (exchanges) by prefixes: New Haven (43), Stamford (27), Bridgeport (25), Norwalk (22), Ansonia–Derby (19), Danbury (18), Waterbury (18), Huntington (9), Greenwich (8), Meriden (7). Source: NANPA Central Office Code Utilized Assignments (public, refreshed weekly).
What to do about calls from 475 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 475 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 Connecticut
- 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: Connecticut Attorney General.
- Connecticut 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 475: questions answered from the data
Where is area code 475?
Area code 475 serves New Haven, Stamford and Bridgeport, Connecticut, covering Western Connecticut Planning Region, South Central Connecticut Planning Region and Naugatuck Valley Planning Region and 1 more county. It has been in service since December 12, 2009.
What time zone is area code 475 in?
Area code 475 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 475 numbers usually about?
Since Jul 24, consumers filed 982 FTC Do Not Call complaints about 475 numbers. The most common named subject was debt-relief pitches: 22% of complaints, 90% of them recorded messages. Across all subjects, 74% of callers who answered the question said the call was a robocall.
When do 475 spam calls happen?
37% of the complaints that give a call time describe calls between 10am and 1pm, and 92% came on weekdays, most often on Thursday. Times are as consumers reported them.
Are calls from 475 numbers really local?
Not necessarily. Only 49% of the FTC complaints about 475 numbers came from Connecticut residents; the most came from Florida, Texas and California. 475 numbers are being used for nationwide campaigns, so the area code says little about where the caller is.
Are 475 robocalls increasing?
In the four weeks to Oct 15, consumers filed 366 FTC complaints about 475 numbers, 16% more than the four weeks before.
How do I report a 475 scam call in Connecticut?
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 Connecticut, the Connecticut 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.