Connecticut area codes

Connecticut has 4 area codes: 203, 475, 860, 959.

• 203 — New Haven
• 475 — New Haven
• 860 — Hartford
• 959 — Hartford

Area codes by city in Connecticut

• Hartford area codes
• New Haven area codes
• Bridgeport area codes
• Bristol area codes
• Danbury area codes

Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of August 2, 2026. Refreshed monthly.