301 Area Code has 762 prefixes

PrefixPrimary CityCarrier
301-200WashingtonBandwidth.com Clec, Llc - Md
301-202WashingtonNew Cingular Wireless Pcs, Llc - Dc
301-203Fort WashingtonVerizon Maryland, Inc.
301-204BeltsvilleNew Cingular Wireless Pcs, Llc - Dc
301-205BaltimoreVerizon Maryland, Inc.
301-206LaurelVerizon Maryland, Inc.
301-207SpringfieldUsa Mobility Wireless, Inc.
301-208GaithersburgVerizon Maryland, Inc.
301-209HyattsvilleVerizon Maryland, Inc.
301-210BeltsvilleVerizon Maryland, Inc.
301-212GaithersburgVerizon Maryland, Inc.
301-213WashingtonSprint Spectrum L.p.
301-214BethesdaVerizon Maryland, Inc.
301-215Chevy ChaseVerizon Maryland, Inc.
301-216GaithersburgVerizon Maryland, Inc.
301-217RockvilleVerizon Maryland, Inc.
301-218Upper MarlboroVerizon Maryland, Inc.
301-219BeltsvilleNew Cingular Wireless Pcs, Llc - Dc
301-220College ParkVerizon Maryland, Inc.
301-221BeltsvilleNew Cingular Wireless Pcs, Llc - Dc
301-222HerndonCavalier Telephone Mid-atlantic, Llc - Md
301-223WilliamsportVerizon Maryland, Inc.
301-224SpringfieldUsa Mobility Wireless, Inc.
301-225WashingtonTeleport Communications America, Llc - Dc
301-226HyattsvilleVerizon Maryland, Inc.
301-227BethesdaVerizon Maryland, Inc.
301-228FrederickVerizon Maryland, Inc.
301-229BethesdaVerizon Maryland, Inc.
301-230RockvilleVerizon Maryland, Inc.
301-231RockvilleVerizon Maryland, Inc.
301-232BeltsvilleMci Worldcom Communications, Inc. - Md
301-233Annapolis JunctionCellco Partnership Dba Verizon Wireless - Md
301-234Verizon Maryland, Inc.
301-235WashingtonMcimetro Access Transmission Services Llc
301-236Silver SpringVerizon Maryland, Inc.
301-237WashingtonSprint Spectrum L.p.
301-238Temple HillsVerizon Maryland, Inc.
301-239HyattsvilleVerizon Maryland, Inc.
301-240GaithersburgVerizon Maryland, Inc.
301-241CascadeVerizon Maryland, Inc.
301-242WashingtonMcimetro Access Transmission Services Llc
301-243BethesdaVerizon Maryland, Inc.
301-244Chevy ChaseTelcove Operations, Inc. - Md
301-245HagerstownVerizon Maryland, Inc.
301-246WashingtonVerizon Maryland, Inc.
301-247BeltsvilleNew Cingular Wireless Pcs, Llc - Dc
301-248Verizon Maryland, Inc.
301-249Upper MarlboroVerizon Maryland, Inc.
301-250BeltsvilleMci Worldcom Communications, Inc. - Md
301-251RockvilleVerizon Maryland, Inc.
301-252WashingtonSprint Spectrum L.p.
301-253DamascusVerizon Maryland, Inc.
301-254WashingtonSprint Spectrum L.p.
301-255RockvilleVerizon Maryland, Inc.
301-256BeltsvilleMci Worldcom Communications, Inc. - Md
301-257WashingtonSprint Spectrum L.p.
301-258GaithersburgVerizon Maryland, Inc.
301-259NewburgVerizon Maryland, Inc.
301-260OlneyVerizon Maryland, Inc.
301-261CroftonVerizon Maryland, Inc.
301-262BowieVerizon Maryland, Inc.
301-263BethesdaVerizon Maryland, Inc.
301-264HagerstownVerizon Maryland, Inc.
301-265Verizon Maryland, Inc.
301-266BeltsvilleNew Cingular Wireless Pcs, Llc - Dc
301-267WashingtonSprint Spectrum L.p.
301-268CumberlandUscoc Of Cumberland, Inc. Dba United States Cel Md
301-270HyattsvilleVerizon Maryland, Inc.
301-271ThurmontVerizon Maryland, Inc.
301-272RestonMci Worldcom Communications, Inc. - Md
301-273RestonMci Worldcom Communications, Inc. - Md
301-274HughesvilleVerizon Maryland, Inc.
301-275BeltsvilleNew Cingular Wireless Pcs, Llc - Dc
301-276RestonMci Worldcom Communications, Inc. - Md
301-277HyattsvilleVerizon Maryland, Inc.
301-278RestonMci Worldcom Communications, Inc. - Md
301-279RockvilleVerizon Maryland, Inc.
301-280Chevy ChaseVerizon Maryland, Inc.
301-281BeltsvilleMci Worldcom Communications, Inc. - Md
301-282Silver SpringVerizon Maryland, Inc.
301-283Bryans RoadVerizon Maryland, Inc.
301-284RestonMci Worldcom Communications, Inc. - Md
301-285Silver SpringVerizon Maryland, Inc.
301-286College ParkVerizon Maryland, Inc.
301-287RestonMci Worldcom Communications, Inc. - Md
301-288WashingtonMci Worldcom Communications, Inc. - Md
301-289RestonMci Worldcom Communications, Inc. - Md
301-290MechanicsvilleVerizon Maryland, Inc.
301-291RestonMci Worldcom Communications, Inc. - Md
301-292Fort WashingtonVerizon Maryland, Inc.
301-293MyersvilleVerizon Maryland, Inc.
301-294RockvilleVerizon Maryland, Inc.
301-295BethesdaVerizon Maryland, Inc.
301-296RestonMci Worldcom Communications, Inc. - Md
301-297Verizon Maryland, Inc.
301-298WashingtonMcimetro Access Transmission Services Llc
301-299BethesdaVerizon Maryland, Inc.
301-300WashingtonCellco Partnership Dba Verizon Wireless - Md
301-302HagerstownSprint Spectrum L.p. - Md
301-303Silver SpringUsa Mobility Wireless, Inc.