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Phone Directory 603-373 Detail

State Major City Time Zone
New Hampshire Manchester Eastern

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Example: (603) 373-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
603-373 Portsmouth, NH Conversent Communications Of New Hampshire Rockingham Landline 07/22/1999

Other Series For Prefixes

603-3730###
603-3731###
603-3732###
603-3733###
603-3734###
603-3735###
603-3736###
603-3737###
603-3738###
603-3739###