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Phone Directory 240-243 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Example: (240) 243-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
240-243 Gaithersburg, MD Allegiance Telecom Montgomery Landline 01/14/2000

Other Series For Prefixes

240-2430###
240-2431###
240-2432###
240-2433###
240-2434###
240-2435###
240-2436###
240-2437###
240-2438###
240-2439###