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Phone Directory 301-315 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
301-315 Rockville, MD Verizon Maryland Montgomery Landline 07/01/1996

Other Series For Prefixes

301-3150###
301-3151###
301-3152###
301-3153###
301-3154###
301-3155###
301-3156###
301-3157###
301-3158###
301-3159###