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Phone Directory 301-830 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
301-830 Silver Spring, MD AT&T Local Montgomery Landline 08/14/1998

Other Series For Prefixes

301-8300###
301-8301###
301-8302###
301-8303###
301-8304###
301-8305###
301-8306###
301-8307###
301-8308###
301-8309###