Cities in area code 475
475 numbers are anchored to 32 rate centers across Connecticut. Each row shows how many active prefixes the locality holds — a direct measure of its numbering footprint.
By numbering footprint the leading localities are New Haven, Stamford, Bridgeport, Norwalk, Danbury, Ansonia-derby, Waterbury and Huntington, and 23 smaller communities down to single-prefix localities. Prefix counts track lines in service, so the ranking is a reasonable proxy for where the code's subscribers actually are.
Metropolitan coverage: 32 rate centers belong to FCC top-100 metro areas.
Overlap note: 32 localities are shared with other area codes, so a neighbor's number may differ in its first three digits.
Clock-wise the coverage is Eastern.
A caller's real location can differ: numbers port between carriers and follow their owners when they move. Use the prefix tables to see where a specific number block was issued.
| Locality (rate center) | Active prefixes | Metro area | All codes serving it |
|---|---|---|---|
| New Haven | 42 | (New Haven-Milford, CT Metropolitan Statistical Area) | 203, 475 |
| Stamford | 27 | Bridgeport-Stamford-Norwalk, CT | 203, 475 |
| Bridgeport | 25 | Bridgeport-Stamford-Norwalk, CT | 203, 475 |
| Norwalk | 22 | Bridgeport-Stamford-Norwalk, CT | 203, 475 |
| Danbury | 18 | Bridgeport-Stamford-Norwalk, CT | 203, 475 |
| Ansonia-derby | 18 | Bridgeport-Stamford-Norwalk, CT | 203, 475 |
| Waterbury | 17 | (New Haven-Milford, CT Metropolitan Statistical Area) | 203, 475 |
| Huntington | 9 | Bridgeport-Stamford-Norwalk, CT | 203, 475 |
| Trumbull | 7 | Bridgeport-Stamford-Norwalk, CT | 203, 475 |
| Greenwich | 7 | Bridgeport-Stamford-Norwalk, CT | 203, 475 |
| Meriden | 7 | (New Haven-Milford, CT Metropolitan Statistical Area) | 203, 475 |
| Wallingford | 6 | (New Haven-Milford, CT Metropolitan Statistical Area) | 203, 475 |
| Newtown | 6 | Bridgeport-Stamford-Norwalk, CT | 203, 475 |
| Branford | 5 | (New Haven-Milford, CT Metropolitan Statistical Area) | 203, 475 |
| Darien | 5 | Bridgeport-Stamford-Norwalk, CT | 203, 475 |
| Milford | 5 | Bridgeport-Stamford-Norwalk, CT | 203, 475 |
| Fairfield | 5 | Bridgeport-Stamford-Norwalk, CT | 203, 475 |
| Woodbury | 4 | (New Haven-Milford, CT Metropolitan Statistical Area) | 203, 475 |
| Naugatuck | 4 | (New Haven-Milford, CT Metropolitan Statistical Area) | 203, 475 |
| Cheshire | 4 | (New Haven-Milford, CT Metropolitan Statistical Area) | 203, 475 |
| Old Greenwich | 4 | Bridgeport-Stamford-Norwalk, CT | 203, 475 |
| Byram | 4 | Bridgeport-Stamford-Norwalk, CT | 203, 475 |
| Seymour | 4 | (New Haven-Milford, CT Metropolitan Statistical Area) | 203, 475 |
| Westport | 4 | Bridgeport-Stamford-Norwalk, CT | 203, 475 |
| New Canaan | 4 | Bridgeport-Stamford-Norwalk, CT | 203, 475 |
| Ridgefield | 3 | Bridgeport-Stamford-Norwalk, CT | 203, 475 |
| Wolcott | 3 | (New Haven-Milford, CT Metropolitan Statistical Area) | 203, 475 |
| Redding | 3 | Bridgeport-Stamford-Norwalk, CT | 203, 475 |
| Wilton | 3 | Bridgeport-Stamford-Norwalk, CT | 203, 475 |
| Georgetown | 3 | Bridgeport-Stamford-Norwalk, CT | 203, 475 |
| Guilford | 2 | (New Haven-Milford, CT Metropolitan Statistical Area) | 203, 475 |
| Madison | 2 | (New Haven-Milford, CT Metropolitan Statistical Area) | 203, 475 |
FAQ
What is the biggest city in area code 475?
New Haven holds the most active prefixes (42), making it the code's largest numbering locality.
How many places does 475 cover?
32 rate centers in Connecticut hold active 475 prefixes, from New Haven down to communities with a single prefix.
Does a 475 number guarantee the caller lives in one of these places?
No — the tables show where number blocks were issued. Porting and VoIP let people keep or acquire numbers anywhere.