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Sandy Hook, CT Area Codes
Sandy Hook, Connecticut (population 9,718) uses area codes 475 and 203.
Sandy Hook has no telephone exchange of its own in NANPA records; it is served by the Newtown exchange about 5.8 km away.
Carriers with Sandy Hook numbers
11 prefixes are assigned to the Newtown exchange: 9% mobile, 55% VoIP and cable, 36% landline.
| Carrier | Prefixes |
|---|---|
| Frontier | 3 |
| Bandwidth | 2 |
| Onvoy (Sinch) | 2 |
| T-Mobile | 1 |
| Eon Telecom | 1 |
| Peerless Network | 1 |
| AT&T (Teleport) | 1 |
Area codes used in Sandy Hook
| Area code | Prefixes serving Sandy Hook | Main carriers in this code |
|---|---|---|
| 475 | 6 | Onvoy (Sinch), Verizon Wireless, T-Mobile |
| 203 | 5 | Frontier, Verizon Wireless, AT&T Mobility |
Sandy Hook phone number prefixes
Numbers starting with these first six digits were originally assigned to the Newtown exchange.
475-297Bandwidth475-323T-Mobile475-360Onvoy (Sinch)475-376Eon Telecom475-444Peerless Network475-445Onvoy (Sinch)203-270Frontier203-304AT&T (Teleport)203-364Frontier203-426Frontier203-491Bandwidth
Nearby cities in area code 475
- Bridgeport
- Stamford
- New Haven
- Waterbury
- Norwalk
- Danbury
- Meriden
- West Haven
- Milford
- Shelton
- Naugatuck
- East Haven
Questions
- What is the area code for Sandy Hook, CT?
- Sandy Hook uses 2 area codes: 475 and 203. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
- What time zone is Sandy Hook in?
- Sandy Hook is in the Eastern time zone.