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Phone Directory 301-243 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Example: (301) 243-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
301-243 Bethesda, MD Verizon Maryland Montgomery Landline 07/20/2006

Other Series For Prefixes

301-2430###
301-2431###
301-2432###
301-2433###
301-2434###
301-2435###
301-2436###
301-2437###
301-2438###
301-2439###