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Phone Directory 301-770 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
301-770 Rockville, MD Verizon Maryland Montgomery Landline 02/04/1994

Other Series For Prefixes

301-7700###
301-7701###
301-7702###
301-7703###
301-7704###
301-7705###
301-7706###
301-7707###
301-7708###
301-7709###