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Phone Directory 301-284 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
301-284 Rockville, MD Mci Worldcom Communications Montgomery Landline 01/11/1997

Other Series For Prefixes

301-2840###
301-2841###
301-2842###
301-2843###
301-2844###
301-2845###
301-2846###
301-2847###
301-2848###
301-2849###