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Phone Directory 203-637 Detail

State Major City Time Zone
Connecticut New Haven Eastern

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
203-637 Old Greenwich, CT Southern New England Telephone Co. Fairfield Landline 02/04/1994

Other Series For Prefixes

203-6370###
203-6371###
203-6372###
203-6373###
203-6374###
203-6375###
203-6376###
203-6377###
203-6378###
203-6379###