Connecticut, United States
Eastern Time
1:23 AM
Area Code
475
State / Province
Connecticut
Country
United States
Time Zone
Eastern Time
Area code 475 covers 32 cities and communities across Connecticut, based on telephone company rate center data.
Use the E.164 format for clickable phone links (RFC 3966):
<a href="tel:+14755550100">+14755550100</a><a href="tel:+14755550199">+14755550199</a>Look up which exchange in Connecticut a specific 475 number is homed to, and whether its block is wireline or wireless. See what a reverse lookup can establish before relying on the answer.
289 active prefixes in this area code, assigned as 3,008 thousands-blocks — pooling splits one prefix across several carriers, so each block is listed separately with the rate centre it is homed to, its carrier of record, and the switch that serves it.
Showing blocks 1–100 of 3,008
| NPA-NXX | Block | Rate centre | Type | Carrier (OCN) | Switch | LATA | LIR | Dates |
|---|---|---|---|---|---|---|---|---|
| 475-200 | 0 | Huntington | Landline or VoIP | PEERLESS NETWORK OF CONNECTICUT, LLC - CT (539F) | HRFRCT0380Z | 920 | — | — |
| 475-200 | 1 | Huntington | Landline or VoIP | PEERLESS NETWORK OF CONNECTICUT, LLC - CT (539F) | HRFRCT0380Z | 920 | — | — |
| 475-200 | 2 | Huntington | Landline or VoIP | PEERLESS NETWORK OF CONNECTICUT, LLC - CT (539F) | HRFRCT0380Z | 920 | — | — |
| 475-200 | 3 | Huntington | Landline or VoIP | PEERLESS NETWORK OF CONNECTICUT, LLC - CT (539F) | HRFRCT0380Z | 920 | — | — |
| 475-200 | 4 | Huntington | Landline or VoIP | PEERLESS NETWORK OF CONNECTICUT, LLC - CT (539F) | HRFRCT0380Z | 920 | — | — |
| 475-200 | 5 | Huntington | Landline or VoIP | PEERLESS NETWORK OF CONNECTICUT, LLC - CT (539F) | HRFRCT0380Z | 920 | — | — |
| 475-200 | 6 | Huntington | Landline or VoIP | PEERLESS NETWORK OF CONNECTICUT, LLC - CT (539F) | HRFRCT0380Z | 920 | — | — |
| 475-200 | 7 | Huntington | Landline or VoIP | PEERLESS NETWORK OF CONNECTICUT, LLC - CT (539F) | HRFRCT0380Z | 920 | — | — |
| 475-200 | 8 | Huntington | Landline or VoIP | HD CARRIER LLC (321J) | HRFRCT0398Z | 920 | — | — |
| 475-200 | 9 | Huntington | Landline or VoIP | PEERLESS NETWORK OF CONNECTICUT, LLC - CT (539F) | HRFRCT0380Z | 920 | — | — |
| 475-200 | A | Huntington | Landline or VoIP | PEERLESS NETWORK OF CONNECTICUT, LLC - CT (539F) | HRFRCT0380Z | 920 | — | — |
| 475-201 | 0 | New Haven | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CT (199F) | HRFRCT0379Z | 920 | — | — |
| 475-201 | 1 | New Haven | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-201 | 2 | New Haven | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-201 | 3 | New Haven | Landline or VoIP | METROPCS, INC. (5562) | BLFDCTAP2MD | 920 | — | — |
| 475-201 | 4 | New Haven | Landline or VoIP | METROPCS, INC. (5562) | BLFDCTAP2MD | 920 | — | — |
| 475-201 | 5 | New Haven | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-201 | 6 | New Haven | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | MDTWCTNIBMD | 920 | — | — |
| 475-201 | 7 | New Haven | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | MDTWCTNIBMD | 920 | — | — |
| 475-201 | 8 | New Haven | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | MDTWCTNIBMD | 920 | — | — |
| 475-201 | 9 | New Haven | Landline or VoIP | YMAX COMMUNICATIONS CORP. - CT (350E) | HRFRCT0377Z | 920 | — | — |
| 475-201 | A | New Haven | Landline or VoIP | METROPCS, INC. (5562) | BLFDCTAP2MD | 920 | — | — |
| 475-202 | 0 | New Haven | Wireless | OMNIPOINT COMMUNICATIONS, INC. - CT (6624) | BLFDCTAP2MD | 920 | — | — |
| 475-202 | 1 | New Haven | Wireless | OMNIPOINT COMMUNICATIONS, INC. - CT (6624) | BLFDCTAP2MD | 920 | — | — |
| 475-202 | 2 | New Haven | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-202 | 3 | New Haven | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-202 | 4 | New Haven | Wireless | OMNIPOINT COMMUNICATIONS, INC. - CT (6624) | BLFDCTAP2MD | 920 | — | — |
| 475-202 | 5 | New Haven | Landline or VoIP | PAETEC ITEL, LLC (829J) | HRFRCT03Y4X | 920 | — | — |
| 475-202 | 6 | New Haven | Landline or VoIP | COMCAST IP PHONE, LLC (318J) | HRFRCTCR3MD | 920 | — | — |
| 475-202 | 7 | New Haven | Landline | SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT (9147) | NWHNCT02GT0 | 920 | — | — |
| 475-202 | 8 | New Haven | Landline or VoIP | PAETEC ITEL, LLC (829J) | HRFRCT03Y4X | 920 | — | — |
| 475-202 | 9 | New Haven | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-202 | A | New Haven | Wireless | OMNIPOINT COMMUNICATIONS, INC. - CT (6624) | BLFDCTAP2MD | 920 | — | — |
| 475-203 | 0 | Wallingford | Landline or VoIP | ONVOY, LLC - CT (639C) | HARTFORD | 920 | — | — |
| 475-203 | 1 | Wallingford | Landline or VoIP | ONVOY, LLC - CT (639C) | HARTFORD | 920 | — | — |
| 475-203 | 2 | Wallingford | Landline or VoIP | ONVOY, LLC - CT (639C) | HARTFORD | 920 | — | — |
| 475-203 | 3 | Wallingford | Landline or VoIP | ONVOY, LLC - CT (639C) | HARTFORD | 920 | — | — |
| 475-203 | 4 | Wallingford | Landline or VoIP | ONVOY, LLC - CT (639C) | HARTFORD | 920 | — | — |
| 475-203 | 5 | Wallingford | Landline or VoIP | ONVOY, LLC - CT (639C) | HARTFORD | 920 | — | — |
| 475-203 | 6 | Wallingford | Landline or VoIP | ONVOY, LLC - CT (639C) | HARTFORD | 920 | — | — |
| 475-203 | 7 | Wallingford | Landline or VoIP | ONVOY, LLC - CT (639C) | HARTFORD | 920 | — | — |
| 475-203 | 8 | Wallingford | Landline or VoIP | ONVOY, LLC - CT (639C) | HARTFORD | 920 | — | — |
| 475-203 | 9 | Wallingford | Landline or VoIP | ONVOY, LLC - CT (639C) | HARTFORD | 920 | — | — |
| 475-203 | A | Wallingford | Landline or VoIP | ONVOY, LLC - CT (639C) | HARTFORD | 920 | — | — |
| 475-204 | 0 | Danbury | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-204 | 1 | Danbury | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-204 | 2 | Danbury | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CT (199F) | HRFRCT0379Z | 920 | — | — |
| 475-204 | 3 | Danbury | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CT (199F) | HRFRCT0379Z | 920 | — | — |
| 475-204 | 4 | Danbury | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-204 | 5 | Danbury | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT (7230) | STAMFORD | 920 | — | — |
| 475-204 | 6 | Danbury | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-204 | 7 | Danbury | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | MDTWCTNIBMD | 920 | — | — |
| 475-204 | 8 | Danbury | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | MDTWCTNIBMD | 920 | — | — |
| 475-204 | 9 | Danbury | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | MDTWCTNIBMD | 920 | — | — |
| 475-204 | A | Danbury | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-205 | 0 | Stamford | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-205 | 1 | Stamford | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-205 | 2 | Stamford | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-205 | 3 | Stamford | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-205 | 4 | Stamford | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-205 | 5 | Stamford | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-205 | 6 | Stamford | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-205 | 7 | Stamford | Landline or VoIP | CENTURYLINK COMMUNICATIONS, LLC (508J) | NWLNCTCS6MD | 920 | — | — |
| 475-205 | 8 | Stamford | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-205 | 9 | Stamford | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-205 | A | Stamford | Landline or VoIP | CENTURYLINK COMMUNICATIONS, LLC (508J) | NWLNCTCS6MD | 920 | — | — |
| 475-206 | 0 | Danbury | Landline or VoIP | ONVOY, LLC - CT (639C) | HARTFORD | 920 | — | — |
| 475-206 | 1 | Danbury | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | MDTWCTNIBMD | 920 | — | — |
| 475-206 | 2 | Danbury | Landline or VoIP | PAETEC ITEL, LLC (829J) | HRFRCT03Y0X | 920 | — | — |
| 475-206 | 3 | Danbury | Wireless | OMNIPOINT COMMUNICATIONS, INC. - CT (6624) | BLFDCTAP2MD | 920 | — | — |
| 475-206 | 4 | Danbury | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-206 | 5 | Danbury | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | MDTWCTNIBMD | 920 | — | — |
| 475-206 | 6 | Danbury | Landline or VoIP | METROPCS, INC. (5562) | BLFDCTAP2MD | 920 | — | — |
| 475-206 | 7 | Danbury | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-206 | 8 | Danbury | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-206 | 9 | Danbury | Wireless | OMNIPOINT COMMUNICATIONS, INC. - CT (6624) | BLFDCTAP2MD | 920 | — | — |
| 475-206 | A | Danbury | Wireless | OMNIPOINT COMMUNICATIONS, INC. - CT (6624) | BLFDCTAP2MD | 920 | — | — |
| 475-207 | 0 | Woodbury | Landline or VoIP | PEERLESS NETWORK OF CONNECTICUT, LLC - CT (539F) | HRFRCT0380Z | 920 | — | — |
| 475-207 | 1 | Woodbury | Landline or VoIP | CHARTER IP ENABLED SERVICES, LLC (792K) | WLMNCT132MD | 920 | — | — |
| 475-207 | 2 | Woodbury | Landline or VoIP | PEERLESS NETWORK OF CONNECTICUT, LLC - CT (539F) | HRFRCT0380Z | 920 | — | — |
| 475-207 | 3 | Woodbury | Landline or VoIP | ONVOY, LLC - CT (639C) | HARTFORD | 920 | — | — |
| 475-207 | 4 | Woodbury | Landline or VoIP | ONVOY, LLC - CT (639C) | HARTFORD | 920 | — | — |
| 475-207 | 5 | Woodbury | Landline or VoIP | PEERLESS NETWORK OF CONNECTICUT, LLC - CT (539F) | HRFRCT0380Z | 920 | — | — |
| 475-207 | 6 | Woodbury | Landline or VoIP | ONVOY, LLC - CT (639C) | HARTFORD | 920 | — | — |
| 475-207 | 7 | Woodbury | Landline or VoIP | ONVOY, LLC - CT (639C) | HARTFORD | 920 | — | — |
| 475-207 | 8 | Woodbury | Landline or VoIP | ONVOY, LLC - CT (639C) | HARTFORD | 920 | — | — |
| 475-207 | 9 | Woodbury | Landline or VoIP | TELNYX LLC (073H) | HRFRCT03HMD | 920 | — | — |
| 475-207 | A | Woodbury | Landline or VoIP | CHARTER IP ENABLED SERVICES, LLC (792K) | WLMNCT132MD | 920 | — | — |
| 475-208 | 0 | Norwalk | Wireless | OMNIPOINT COMMUNICATIONS, INC. - CT (6624) | BLFDCTAP2MD | 920 | — | — |
| 475-208 | 1 | Norwalk | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CT (199F) | HRFRCT0379Z | 920 | — | — |
| 475-208 | 2 | Norwalk | Landline or VoIP | LEVEL 3 COMMUNICATIONS, LLC - CT (4800) | SMFRCTPU4MD | 920 | — | — |
| 475-208 | 3 | Norwalk | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CT (199F) | HRFRCT0379Z | 920 | — | — |
| 475-208 | 4 | Norwalk | Landline or VoIP | BANDWIDTH.COM CLEC, LLC - CT (199F) | HRFRCT0379Z | 920 | — | — |
| 475-208 | 5 | Norwalk | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-208 | 6 | Norwalk | Landline or VoIP | ONVOY, LLC - CT (639C) | HARTFORD | 920 | — | — |
| 475-208 | 7 | Norwalk | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-208 | 8 | Norwalk | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-208 | 9 | Norwalk | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT (6388) | HRFRCTASBMD | 920 | — | — |
| 475-208 | A | Norwalk | Landline or VoIP | LEVEL 3 COMMUNICATIONS, LLC - CT (4800) | SMFRCTPU4MD | 920 | — | — |
| 475-209 | 0 | New Haven | Wireless | OMNIPOINT COMMUNICATIONS, INC. - CT (6624) | BLFDCTAP2MD | 920 | — | — |
Block-level assignments from the North American Numbering Plan administrator, via localcallingguide.com.
Assigned Prefixes
289
Assignment Blocks
3,008
Rate Centers
32
Carriers of Record
37
| Type | Blocks | Share |
|---|---|---|
| Landline | 56 | 2% |
| Landline or VoIP | 1,724 | 57% |
| Wireless | 1,228 | 41% |
| Carrier | Blocks |
|---|---|
| ONVOY, LLC - CT | 795 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | 510 |
| OMNIPOINT COMMUNICATIONS, INC. - CT | 319 |
| BANDWIDTH.COM CLEC, LLC - CT | 244 |
| NEW CINGULAR WIRELESS PCS, LLC - DC | 239 |
| PEERLESS NETWORK OF CONNECTICUT, LLC - CT | 127 |
| ONVOY SPECTRUM, LLC | 114 |
| COMCAST IP PHONE, LLC | 61 |
| METROPCS, INC. | 60 |
| SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | 56 |
| 27 other carriers | 483 |
Carrier of record for each block. Numbers ported to another carrier keep their original block assignment, so this is not a lookup of who serves a given number today.
| Rate Center | Prefixes | Blocks |
|---|---|---|
| New Haven | 43 | 466 |
| Stamford | 27 | 297 |
| Bridgeport | 25 | 266 |
| Norwalk | 22 | 237 |
| Ansonia-Derby | 18 | 197 |
| Danbury | 18 | 192 |
| Waterbury | 18 | 190 |
| Huntington | 9 | 93 |
| Greenwich | 8 | 76 |
| Meriden | 7 | 75 |
| Trumbull | 7 | 75 |
| Fairfield | 6 | 59 |
| Milford | 6 | 57 |
| Newtown | 6 | 60 |
| Wallingford | 6 | 62 |
| Branford | 5 | 52 |
| Cheshire | 5 | 46 |
| Darien | 5 | 50 |
| Byram | 4 | 41 |
| Naugatuck | 4 | 44 |
| New Canaan | 4 | 36 |
| Old Greenwich | 4 | 36 |
| Seymour | 4 | 35 |
| Westport | 4 | 42 |
| Woodbury | 4 | 36 |
| Georgetown | 3 | 24 |
| Guilford | 3 | 24 |
| Redding | 3 | 26 |
| Ridgefield | 3 | 32 |
| Wilton | 3 | 32 |
| Wolcott | 3 | 29 |
| Madison | 2 | 21 |
A rate center is the telephone exchange area a number is homed to. It sets local calling boundaries, and is not the caller's current location.
Area code 475 is a North American Numbering Plan (NANP) telephone area code assigned to Connecticut, United States. It is one of 4 area codes serving Connecticut. As population and demand for phone numbers grew, the region was divided into multiple numbering plan areas to avoid exhausting the available 7-digit number pool.
Yes. 475 is an active North American Numbering Plan (NANP) area code, currently assigned to Connecticut, United States. It is safe to answer or dial calls using this area code.
Area code 475 covers 32 cities and communities in Connecticut, including Ansonia-Derby, Branford, Bridgeport, Byram, Cheshire, and 27 more localities. This is based on telephone company rate center data — the geographic areas carriers use to determine local calling boundaries and to assign numbers when a business or individual requests a phone number in a specific city.
All numbers in the 475 area code observe Eastern Time (IANA timezone: America/New_York). Eastern Time is UTC−5 in winter (EST) and UTC−4 in summer (EDT). When placing a call to a 475 number from a different time zone, check the current local time above to avoid calling outside of business hours.
From within Connecticut, dial the 7-digit local number directly if calling within the same rate center, or dial 1 + 475 + 7-digit number for long-distance calls within North America. From outside the US or Canada, dial your country's international exit code followed by 1 475 XXX XXXX. The country code for both the United States and Canada in NANP is +1.
Format 475 numbers using E.164 notation as required by RFC 3966: prefix with +1 and omit dashes and parentheses (e.g., +14755550100). This format ensures tel: links work correctly on all mobile browsers and VoIP apps. See the tel: URI formatting guide for complete examples.