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Phone Directory 301-740 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
301-740 Gaithersburg, MD Verizon Maryland Montgomery Landline 04/22/2004

Other Series For Prefixes

301-7400###
301-7401###
301-7402###
301-7403###
301-7404###
301-7405###
301-7406###
301-7407###
301-7408###
301-7409###