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Phone Directory 301-355 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
301-355 Gaithersburg, MD Verizon Maryland Montgomery Landline 12/08/2005

Other Series For Prefixes

301-3550###
301-3551###
301-3552###
301-3553###
301-3554###
301-3555###
301-3556###
301-3557###
301-3558###
301-3559###