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Phone Directory 240-403 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
240-403 Rockville, MD Cavalier Telephone Mid-atlantic Montgomery Landline 08/20/2000

Other Series For Prefixes

240-4030###
240-4031###
240-4032###
240-4033###
240-4034###
240-4035###
240-4036###
240-4037###
240-4038###
240-4039###