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Area Code 203 Information

Area Code 203 Map State: CT - Connecticut
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Area code 203 is a telephone area code that covers the southwestern part of Connecticut. The area code stretches from the New York border past the city of New Haven and ends just south of Hartford.

Related Area Codes: 860

Get other Connecticut area codes »

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Best Mobile Operators in your area:

Verizon: Verizon Wireless , and check out New Verizon Smartphones

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Tello: Tello - has mobile plans as low as $10/month
T-Mobile: T-Mobile Wireless - claim they are a leader in 5G
US Mobile: US Mobile - next generation wireless network, as low as $4/line
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