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Waterbury, CT Area Codes
Waterbury, Connecticut (population 115,771) uses area codes 203 and 475.
Carriers with Waterbury numbers
70 prefixes are assigned to the Waterbury exchange: 41% mobile, 11% VoIP and cable, 47% landline.
| Carrier | Prefixes |
|---|---|
| Frontier | 23 |
| AT&T Mobility | 12 |
| Verizon Wireless | 9 |
| T-Mobile | 8 |
| Metropcs | 6 |
| Paetec Itel | 3 |
| Peerless Network | 2 |
| Onvoy (Sinch) | 2 |
Area codes used in Waterbury
| Area code | Prefixes serving Waterbury | Main carriers in this code |
|---|---|---|
| 203 | 52 | Frontier, Verizon Wireless, AT&T Mobility |
| 475 | 18 | Onvoy (Sinch), Verizon Wireless, T-Mobile |
Waterbury phone number prefixes
Numbers starting with these first six digits were originally assigned to the Waterbury exchange.
203-206AT&T Mobility203-217AT&T Mobility203-228Verizon Wireless203-232Verizon Wireless203-233Verizon Wireless203-236Frontier203-346Frontier203-419Frontier203-437Verizon Business (MCImetro)203-465Frontier203-509Metropcs203-510Metropcs203-518AT&T Mobility203-519Metropcs203-525AT&T Mobility203-527Frontier203-528Lumen (Level 3)203-558AT&T Mobility203-560AT&T Mobility203-565Metropcs203-568Paetec Itel203-573Frontier203-574Frontier203-575Frontier203-577Frontier203-578Frontier203-591Frontier203-592AT&T Mobility203-596Frontier203-597Frontier203-598Frontier203-695Frontier203-706Paetec Itel203-707Verizon Wireless203-709Frontier203-721Verizon Wireless203-725Comcast (Xfinity)203-753Frontier203-754Frontier203-755Frontier203-756Frontier203-757Frontier203-758Frontier203-759Frontier203-768T-Mobile203-802Metropcs203-805AT&T (Teleport)203-808T-Mobile203-819AT&T Mobility203-841Paetec Itel203-910Verizon Wireless203-982Metropcs475-222Peerless Network475-233AT&T Mobility475-235AT&T Mobility475-263Peerless Network475-295AT&T Mobility475-305T-Mobile475-313T-Mobile475-316T-Mobile475-326T-Mobile475-337T-Mobile475-341T-Mobile475-354Onvoy (Sinch)475-377Fractel475-389AT&T Mobility475-403Onvoy (Sinch)475-557Verizon Wireless475-559Verizon Wireless475-689Verizon Wireless
Nearby cities in area code 203
- Bridgeport
- Stamford
- New Haven
- Norwalk
- Danbury
- Meriden
- West Haven
- Milford
- Shelton
- Naugatuck
- East Haven
- North Haven
Questions
- What is the area code for Waterbury, CT?
- Waterbury uses 2 area codes: 203 and 475. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
- What time zone is Waterbury in?
- Waterbury is in the Eastern time zone.