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Phone Directory 301-424 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Example: (301) 424-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
301-424 Rockville, MD Verizon Maryland Montgomery Landline 02/04/1994

Other Series For Prefixes

301-4240###
301-4241###
301-4242###
301-4243###
301-4244###
301-4245###
301-4246###
301-4247###
301-4248###
301-4249###