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Phone Directory 301-666 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Example: (301) 666-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
301-666 Glenn Dale, MD Teleport Communications America - DC Prince Georges Landline 08/14/1998

Other Series For Prefixes

301-6660###
301-6661###
301-6662###
301-6663###
301-6664###
301-6665###
301-6666###
301-6667###
301-6668###
301-6669###