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Phone Directory 410-423 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
410-423 Baltimore, MD Teleport Communications America Baltimore City Landline 04/01/1997

Other Series For Prefixes

410-4230###
410-4231###
410-4232###
410-4233###
410-4234###
410-4235###
410-4236###
410-4237###
410-4238###
410-4239###