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Phone Directory 301-551 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Example: (301) 551-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
301-551 Kensington, MD Baltimore-washington Telephone (bwt) Montgomery Landline 06/13/2000

Other Series For Prefixes

301-5510###
301-5511###
301-5512###
301-5513###
301-5514###
301-5515###
301-5516###
301-5517###
301-5518###
301-5519###