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Phone Directory 240-421 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
240-421 Rockville, MD Omnipoint Communications Cap Operations Montgomery Cell Number 04/09/2001

Other Series For Prefixes

240-4210###
240-4211###
240-4212###
240-4213###
240-4214###
240-4215###
240-4216###
240-4217###
240-4218###
240-4219###