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Phone Directory 301-813 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
301-813 Bethesda, MD Baltimore-washington Telephone (bwt) Montgomery Landline 06/30/2001

Other Series For Prefixes

301-8130###
301-8131###
301-8132###
301-8133###
301-8134###
301-8135###
301-8136###
301-8137###
301-8138###
301-8139###