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Phone Directory 301-255 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Example: (301) 255-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
301-255 Rockville, MD Verizon Maryland Montgomery Landline 01/11/1997

Other Series For Prefixes

301-2550###
301-2551###
301-2552###
301-2553###
301-2554###
301-2555###
301-2556###
301-2557###
301-2558###
301-2559###