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Phone Directory 301-728 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
301-728 Silver Spring, MD Omnipoint Communications Cap Operations Montgomery Cell Number 06/13/2000

Other Series For Prefixes

301-7280###
301-7281###
301-7282###
301-7283###
301-7284###
301-7285###
301-7286###
301-7287###
301-7288###
301-7289###