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Phone Directory 301-504 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Example: (301) 504-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
301-504 Silver Spring, MD Verizon Maryland Montgomery Landline 02/04/1994

Other Series For Prefixes

301-5040###
301-5041###
301-5042###
301-5043###
301-5044###
301-5045###
301-5046###
301-5047###
301-5048###
301-5049###