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Phone Directory 301-620 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
301-620 Frederick, MD Verizon Maryland Frederick Landline 02/04/1994

Other Series For Prefixes

301-6200###
301-6201###
301-6202###
301-6203###
301-6204###
301-6205###
301-6206###
301-6207###
301-6208###
301-6209###