Area Code 203 Details

State : Connecticut
Major City : New Haven
Timezone : Eastern

203 is the North American telephone area code for the state of Connecticut, including the cities of Bridgeport, Danbury, East Haven, Meriden, Milford, Naugatuck, New Haven, North Haven, Norwalk, Shelton, Stamford, Stratford, Trumbull, Waterbury, West Haven, and Westport.

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Prefix Primary City Company County Usage
203-200-#### New Haven, CT Bandwidth.com Clec Unknown
203-201-#### New Haven, CT Usa Mobility Wireless New Haven Cell Number
203-202-#### Darien, CT Cablevision Lightpath Fairfield Landline
203-204-#### Guilford, CT Teleport Communications Group - New York New Haven Landline
203-205-#### Danbury, CT Southern New England Telephone Co. Fairfield Landline
203-206-#### Waterbury, CT New Cingular Wireless PCS - DC New Haven Cell Number
203-207-#### Danbury, CT Southern New England Telephone Co. Fairfield Landline
203-208-#### Branford, CT Comcast Phone Of Connecticut New Haven Landline
203-209-#### Bridgeport, CT Cellco Partnership DBA Verizon Wireless Fairfield Landline
203-210-#### Wilton, CT Cablevision Lightpath Fairfield Landline
203-212-#### Bridgeport, CT New Cingular Wireless PCS - DC Unknown
203-213-#### Meriden, CT New Cingular Wireless PCS - DC New Haven Cell Number
203-214-#### New Haven, CT New Cingular Wireless PCS - DC New Haven Cell Number
203-215-#### New Haven, CT New Cingular Wireless PCS - DC New Haven Cell Number
203-216-#### Westport, CT New Cingular Wireless PCS - DC Fairfield Cell Number
203-217-#### Waterbury, CT New Cingular Wireless PCS - DC New Haven Cell Number
203-218-#### Bridgeport, CT New Cingular Wireless PCS - DC Fairfield Cell Number
203-219-#### Stamford, CT New Cingular Wireless PCS - DC Fairfield Cell Number
203-220-#### Trumbull, CT Cablevision Lightpath Fairfield Landline
203-221-#### Westport, CT Southern New England Telephone Co. Fairfield Landline
203-222-#### Westport, CT Southern New England Telephone Co. Fairfield Landline
203-223-#### Stamford, CT Nextel Communications Fairfield Cell Number
203-224-#### Bridgeport, CT Southern New England Telephone Co. Fairfield Landline
203-225-#### Huntington, CT Southern New England Telephone Co. Fairfield Landline
203-226-#### Westport, CT Southern New England Telephone Co. Fairfield Landline
203-227-#### Westport, CT Southern New England Telephone Co. Fairfield Landline
203-228-#### Waterbury, CT Cellco Partnership DBA Verizon Wireless New Haven Cell Number
203-229-#### Norwalk, CT Southern New England Telephone Co. Fairfield Landline
203-230-#### New Haven, CT Southern New England Telephone Co. New Haven Landline
203-231-#### Derby, CT Cellco Partnership DBA Verizon Wireless New Haven Cell Number
203-232-#### Waterbury, CT Cellco Partnership DBA Verizon Wireless New Haven Cell Number
203-233-#### Waterbury, CT Cellco Partnership DBA Verizon Wireless New Haven Cell Number
203-234-#### New Haven, CT Southern New England Telephone Co. New Haven Landline
203-235-#### Meriden, CT Southern New England Telephone Co. New Haven Landline
203-236-#### Waterbury, CT Southern New England Telephone Co. New Haven Landline
203-237-#### Meriden, CT Southern New England Telephone Co. New Haven Landline
203-238-#### Meriden, CT Southern New England Telephone Co. New Haven Landline
203-239-#### New Haven, CT Southern New England Telephone Co. New Haven Landline
203-240-#### Danbury, CT Cellco Partnership DBA Verizon Wireless Fairfield Cell Number
203-241-#### Danbury, CT Cellco Partnership DBA Verizon Wireless Fairfield Cell Number
203-242-#### Huntington, CT Cablevision Lightpath Fairfield Landline
203-243-#### Bridgeport, CT Omnipoint Communications Fairfield Cell Number
203-244-#### Ridgefield, CT Cablevision Lightpath Fairfield Landline
203-245-#### Madison, CT Southern New England Telephone Co. New Haven Landline
203-246-#### Norwalk, CT Cellco Partnership DBA Verizon Wireless Fairfield Cell Number
203-247-#### Norwalk, CT Cellco Partnership DBA Verizon Wireless Fairfield Cell Number
203-248-#### New Haven, CT Southern New England Telephone Co. New Haven Landline
203-249-#### Stamford, CT Cellco Partnership DBA Verizon Wireless Fairfield Cell Number
203-250-#### Cheshire, CT Southern New England Telephone Co. New Haven Landline
203-251-#### Stamford, CT Southern New England Telephone Co. Fairfield Landline
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