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Phone Directory 301-358 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Example: (301) 358-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
301-358 Upper Marlboro, MD Level 3 Communications Prince Georges Landline 10/11/1997

Other Series For Prefixes

301-3580###
301-3581###
301-3582###
301-3583###
301-3584###
301-3585###
301-3586###
301-3587###
301-3588###
301-3589###