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Phone Directory 301-530 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
301-530 Rockville, MD Verizon Maryland Montgomery Landline 02/04/1994

Other Series For Prefixes

301-5300###
301-5301###
301-5302###
301-5303###
301-5304###
301-5305###
301-5306###
301-5307###
301-5308###
301-5309###