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Phone Directory 240-390 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
240-390 Sandy Spring, MD Cavalier Telephone Mid-atlantic Montgomery Landline 08/20/2000

Other Series For Prefixes

240-3900###
240-3901###
240-3902###
240-3903###
240-3904###
240-3905###
240-3906###
240-3907###
240-3908###
240-3909###