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Phone Directory 301-319 Detail

State Major City Time Zone
Maryland Baltimore Eastern

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
301-319 Rockville, MD Verizon Maryland Montgomery Landline 07/01/1996

Other Series For Prefixes

301-3190###
301-3191###
301-3192###
301-3193###
301-3194###
301-3195###
301-3196###
301-3197###
301-3198###
301-3199###