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Phone Directory 240-428 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Example: (240) 428-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
240-428 Rockville, MD Bandwidth.com Clec Montgomery Landline 10/14/2009

Other Series For Prefixes

240-4280###
240-4281###
240-4282###
240-4283###
240-4284###
240-4285###
240-4286###
240-4287###
240-4288###
240-4289###