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Before You Call Back

Area code 475

Area code 475 serves Connecticut, including New Haven, Stamford and Bridgeport (Eastern time). It has been in service since December 12, 2009 and shares its area with 203.

Numbers starting with 475 drew 1,127 reports to the FTC from Aug 14, 2026 to Nov 11, 2026 and 640 complaints to the FCC since November 2023. The number on your screen can be faked, so a 475 number proves nothing about where a call came from.

Location
Connecticut(new Haven-Milford, CT Metropolitan Statistical Area) and Bridgeport-Stamford-Norwalk, CT Metropolitan Statistical Area
Time zone
Eastern
In service since
December 12, 2009Created from 203
Overlay
Same area as 203
Local calls
Dial 10 digitsArea code needed, even next door
Exchanges in use
292 of 792held by 31 carriers
Projected to run out
3Q 2061NANPA forecast 2026.2

Complaints about 475 numbers

Reports where the number on the consumer's caller ID (or, for the FCC, the number the caller asked them to call back) starts with 475. These are counts of what people reported; the agencies do not verify them.

FTC reports, Aug 14, 2026 to Nov 11, 2026

1,127

FCC complaints since November 2023

640

Different 475 numbers reported

1,567

FCC complaints naming a 475 number, by month

November 2023 to October 2026. Source: FCC Consumer Complaints Data.

Show as a table
MonthComplaints
November 202310
December 20235
January 202415
February 202415
March 202424
April 202419
May 202414
June 202418
July 202414
August 202423
September 202422
October 202428
November 202418
December 202415
January 202528
February 202533
March 202522
April 20258
May 202517
June 202522
July 202524
August 202522
September 202519
October 20250
November 20255
December 202521
January 202621
February 202623
March 202615
April 20264
May 20269
June 202612
July 202619
August 202611
September 202623
October 202626

What people said 475 calls were about

Subjects picked in FTC reports, August 14, 2026 to November 11, 2026. 761 of 1,127 reports were robocalls.

Show as a table
SubjectReports
Other390
Reducing your debt (credit cards, mortgage, student loans)274
Dropped call or no message266
Calls pretending to be government, businesses, or family and friends70
Medical and prescriptions13
Home improvement and cleaning12

Most reported 475 numbers

Numbers with at least five reports from three or more places in the last twelve months. Many of them are likely spoofed.

Places served by 475

NANPA lists 32 rate centers for 475. A rate center is the town or district a block of numbers is tied to for billing; sorted here by how many exchanges each holds.
  • New Haven43
  • Stamford27
  • Bridgeport25
  • Norwalk22
  • Ansonia-Derby19
  • Danbury18
  • Waterbury18
  • Huntington9
  • Greenwich8
  • Meriden7
  • Trumbull7
  • Fairfield6
  • Milford6
  • Newtown6
  • Wallingford6
  • Branford5
  • Cheshire5
  • Darien5
  • Naugatuck5
  • Byram4
  • New Canaan4
  • Old Greenwich4
  • Seymour4
  • Westport4
Show all 32 rate centers

Woodbury, Georgetown, Guilford, Madison, Redding, Ridgefield, Wilton, Wolcott.

Phone companies holding 475 exchanges

Each exchange (the three digits after the area code) is assigned to one carrier. 100% of these exchanges are pooled: their numbers are handed out in blocks of 1,000 to other carriers, so the holder below is not always the company serving a given number.

Exchanges held, top 8 of 31 carriers

NANPA central office code assignments, file of November 11, 2026.

Show as a table
Carrier (legal name)Exchanges
Onvoy, LLC - CT65
Cellco Partnership dba Verizon Wireless - CT47
Omnipoint Communications, Inc. - CT40
Bandwidth.com CLEC, LLC - CT18
New Cingular Wireless PCS, LLC - DC18
Ton80 Communications, LLC17
Peerless Network of Connecticut, LLC - CT15
Fractel, LLC12

When today's 475 exchanges were assigned

Exchanges still assigned, by year of assignment. Exchanges returned since are not counted.

Show as a table
YearExchanges
20091
20102
20116
20127
20134
201422
201534
201621
201710
201815
201914
202031
202127
202231
202313
202428
202513
202610

Check a 475 number

A check shows the carrier and rate center of the number's exchange and every FTC and FCC report about that exact number. Why the number on screen can be fake.

Other area codes in Connecticut

NANPA area code database and central office code file of November 11, 2026; FCC complaints November 1, 2023 to November 11, 2026; FTC reports August 14, 2026 to November 11, 2026. How the data is used.

Official sources (7)Show