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Phone Directory 301-581 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Example: (301) 581-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
301-581 Rockville, MD Verizon Maryland Montgomery Landline 04/01/1997

Other Series For Prefixes

301-5810###
301-5811###
301-5812###
301-5813###
301-5814###
301-5815###
301-5816###
301-5817###
301-5818###
301-5819###