603 Area Code has 668 prefixes

PrefixPrimary CityCarrier
603-656ManchesterNo New England Tel Op Dba Fairpoint Comm - Nh
603-657HooksettChoice One Communications Of New Hampshire, Inc.
603-658PortsmouthFreedom Ring Communications, Llc
603-659NewmarketNo New England Tel Op Dba Fairpoint Comm - Nh
603-660HooksettBell Atlantic Nynex Mobile
603-661PortsmouthSprint Spectrum L.p.
603-662MerrimackUnited States Cellular Corp. - New Hampshire
603-663ManchesterNo New England Tel Op Dba Fairpoint Comm - Nh
603-664BarringtonNo New England Tel Op Dba Fairpoint Comm - Nh
603-665ManchesterNo New England Tel Op Dba Fairpoint Comm - Nh
603-666ManchesterNo New England Tel Op Dba Fairpoint Comm - Nh
603-667HooksettBrooks Fiber Communications Of New Hampshire - Nh
603-668ManchesterNo New England Tel Op Dba Fairpoint Comm - Nh
603-669ManchesterNo New England Tel Op Dba Fairpoint Comm - Nh
603-670ManchesterChoice One Communications Of New Hampshire, Inc.
603-671ManchesterBrooks Fiber Communications Of New Hampshire - Nh
603-672MilfordNo New England Tel Op Dba Fairpoint Comm - Nh
603-673MilfordNo New England Tel Op Dba Fairpoint Comm - Nh
603-674PortsmouthSprint Spectrum L.p.
603-675WindsorNo New England Tel Op Dba Fairpoint Comm - Nh
603-676PortsmouthFreedom Ring Communications, Llc
603-677ManchesterBrooks Fiber Communications Of New Hampshire - Nh
603-678HooksettLevel 3 Communications - Nh
603-679EppingNo New England Tel Op Dba Fairpoint Comm - Nh
603-680MerrimackEnhanced Communications Of Northern New England-nh
603-681ManchesterChoice One Communications Of New Hampshire, Inc.
603-682PortsmouthSprint Spectrum L.p.
603-684ManchesterLevel 3 Communications - Nh
603-685NashuaConversent Communications Of New Hampshire, Llc
603-686HooksettBell Atlantic Nynex Mobile
603-687PortsmouthFreedom Ring Communications, Llc
603-689ManchesterChoice One Communications Of New Hampshire, Inc.
603-690ManchesterBrooks Fiber Communications Of New Hampshire - Nh
603-692SomersworthNo New England Tel Op Dba Fairpoint Comm - Nh
603-693NashuaConversent Communications Of New Hampshire, Llc
603-694FryeburgNorthland Telephone Of Maine, Inc.
603-695ManchesterNo New England Tel Op Dba Fairpoint Comm - Nh
603-701RochesterIdt America Corp - Nh
603-702HooksettBell Atlantic Nynex Mobile
603-703HooksettOtel Telekom, Inc. - Nh
603-705ManchesterComcast Phone Of New Hampshire, Llc - Nh
603-706HooksettConversent Communications Of New Hampshire, Llc
603-707HooksettBell Atlantic Nynex Mobile
603-708ManchesterComcast Phone Of New Hampshire, Llc - Nh
603-709ManchesterLevel 3 Communications - Nh
603-712ManchesterBrooks Fiber Communications Of New Hampshire - Nh
603-714HooksettBell Atlantic Nynex Mobile
603-715ManchesterComcast Phone Of New Hampshire, Llc - Nh
603-716HooksettCrc Communications Of Maine, Inc. - Nh
603-717ManchesterChoice One Communications Of New Hampshire, Inc.
603-718HooksettBell Atlantic Nynex Mobile
603-719PortsmouthFreedom Ring Communications, Llc
603-721PortsmouthSprint Spectrum L.p.
603-722HooksettBandwidth.com Clec, Llc - Nh
603-723MerrimackUnited States Cellular Corp. - New Hampshire
603-724HooksettPaetec Communications, Inc. - Nh
603-726CamptonNo New England Tel Op Dba Fairpoint Comm - Nh
603-727ManchesterLightship Telecom, Llc - Nh
603-728HooksettLevel 3 Communications - Nh
603-729ManchesterBrooks Fiber Communications Of New Hampshire - Nh
603-730HooksettBrooks Fiber Communications Of New Hampshire - Nh
603-731HooksettBell Atlantic Nynex Mobile
603-732HooksettBrooks Fiber Communications Of New Hampshire - Nh
603-733HooksettLevel 3 Communications - Nh
603-734ManchesterBrooks Fiber Communications Of New Hampshire - Nh
603-735AndoverKearsarge Telephone Co.
603-736EpsomNo New England Tel Op Dba Fairpoint Comm - Nh
603-737PortsmouthFreedom Ring Communications, Llc
603-738DerryNew Cingular Wireless Pcs, Llc - Dc
603-740DoverNo New England Tel Op Dba Fairpoint Comm - Nh
603-741ManchesterLevel 3 Communications - Nh
603-742DoverNo New England Tel Op Dba Fairpoint Comm - Nh
603-743DoverNo New England Tel Op Dba Fairpoint Comm - Nh
603-744BristolNo New England Tel Op Dba Fairpoint Comm - Nh
603-745North WoodstockNo New England Tel Op Dba Fairpoint Comm - Nh
603-746ContoocookMerrimack County Telephone Co.
603-747WoodsvilleNo New England Tel Op Dba Fairpoint Comm - Nh
603-748HooksettBell Atlantic Nynex Mobile
603-749DoverNo New England Tel Op Dba Fairpoint Comm - Nh
603-750DoverNo New England Tel Op Dba Fairpoint Comm - Nh
603-751ManchesterBrooks Fiber Communications Of New Hampshire - Nh
603-752BerlinNo New England Tel Op Dba Fairpoint Comm - Nh
603-753ConcordNo New England Tel Op Dba Fairpoint Comm - Nh
603-754PortsmouthFreedom Ring Communications, Llc
603-755FarmingtonNo New England Tel Op Dba Fairpoint Comm - Nh
603-756WalpoleNo New England Tel Op Dba Fairpoint Comm - Nh
603-757ManchesterLightship Telecom, Llc - Nh
603-758DoverChoice One Communications Of New Hampshire, Inc.
603-759HooksettBell Atlantic Nynex Mobile
603-760ManchesterAt&t Local
603-762HooksettBell Atlantic Nynex Mobile
603-763NewportNo New England Tel Op Dba Fairpoint Comm - Nh
603-764WarrenNo New England Tel Op Dba Fairpoint Comm - Nh
603-765PortsmouthSprint Spectrum L.p.
603-766PortsmouthFreedom Ring Communications, Llc
603-767DerryNew Cingular Wireless Pcs, Llc - Dc
603-768DanburyNo New England Tel Op Dba Fairpoint Comm - Nh
603-769ManchesterLevel 3 Communications - Nh
603-770HooksettBell Atlantic Nynex Mobile
603-771ManchesterNo New England Tel Op Dba Fairpoint Comm - Nh
603-772ExeterNo New England Tel Op Dba Fairpoint Comm - Nh
603-773ExeterNo New England Tel Op Dba Fairpoint Comm - Nh
603-774ConcordDunbarton Telephone Company
603-775ExeterNo New England Tel Op Dba Fairpoint Comm - Nh
603-776Center BarnsteadUnion Telephone Co. - Nh
603-777ExeterNo New England Tel Op Dba Fairpoint Comm - Nh
603-778ExeterNo New England Tel Op Dba Fairpoint Comm - Nh
603-779ManchesterBrooks Fiber Communications Of New Hampshire - Nh
603-780ManchesterLevel 3 Communications - Nh
603-781DerryNew Cingular Wireless Pcs, Llc - Dc
603-782ManchesterLevel 3 Communications - Nh
603-783CanterburyNo New England Tel Op Dba Fairpoint Comm - Nh
603-784ManchesterBrooks Fiber Communications Of New Hampshire - Nh
603-785DerryNew Cingular Wireless Pcs, Llc - Dc
603-786RumneyNo New England Tel Op Dba Fairpoint Comm - Nh
603-787North HaverhillNo New England Tel Op Dba Fairpoint Comm - Nh
603-788LancasterNo New England Tel Op Dba Fairpoint Comm - Nh
603-789PortsmouthFreedom Ring Communications, Llc
603-790HooksettBell Atlantic Nynex Mobile
603-791NashuaNo New England Tel Op Dba Fairpoint Comm - Nh
603-792PortsmouthFreedom Ring Communications, Llc
603-793PortsmouthSprint Spectrum L.p.
603-795LymeNo New England Tel Op Dba Fairpoint Comm - Nh
603-796ConcordKearsarge Telephone Co.
603-797ManchesterBrooks Fiber Communications Of New Hampshire - Nh
603-798ChichesterKearsarge Telephone Co.
603-799PortsmouthSprint Spectrum L.p.
603-801HooksettBell Atlantic Nynex Mobile
603-808ManchesterComcast Phone Of New Hampshire, Llc - Nh
603-809HooksettBell Atlantic Nynex Mobile
603-812HooksettBell Atlantic Nynex Mobile
603-813RochesterIdt America Corp - Nh
603-814ManchesterComcast Phone Of New Hampshire, Llc - Nh
603-815ManchesterTeleport Communications America, Llc - Nh
603-817PortsmouthSprint Spectrum L.p.
603-818PortsmouthSprint Spectrum L.p.
603-819HooksettLevel 3 Communications - Nh
603-820ManchesterMetro Pcs, Inc.
603-821NashuaConversent Communications Of New Hampshire, Llc
603-822DoverChoice One Communications Of New Hampshire, Inc.
603-823FranconiaNo New England Tel Op Dba Fairpoint Comm - Nh
603-824ManchesterBrooks Fiber Communications Of New Hampshire - Nh
603-826CharlestownNo New England Tel Op Dba Fairpoint Comm - Nh
603-827HarrisvilleNo New England Tel Op Dba Fairpoint Comm - Nh
603-828HooksettBell Atlantic Nynex Mobile
603-831HooksettBell Atlantic Nynex Mobile
603-832HooksettLightship Telecom, Llc - Nh
603-833HooksettBell Atlantic Nynex Mobile
603-834PortsmouthConversent Communications Of New Hampshire, Llc
603-835AlsteadNo New England Tel Op Dba Fairpoint Comm - Nh
603-836ManchesterComcast Phone Of New Hampshire, Llc - Nh
603-837WhitefieldNo New England Tel Op Dba Fairpoint Comm - Nh
603-838LisbonNo New England Tel Op Dba Fairpoint Comm - Nh
603-839ManchesterCrc Communications Of Maine, Inc. - Nh
603-840ManchesterComcast Phone Of New Hampshire, Llc - Nh
603-841ManchesterComcast Phone Of New Hampshire, Llc - Nh
603-842ManchesterPaetec Communications, Inc. - Nh
603-843PortsmouthFreedom Ring Communications, Llc
603-845ManchesterLightship Telecom, Llc - Nh
603-846Twin MountainNo New England Tel Op Dba Fairpoint Comm - Nh
603-847SullivanNo New England Tel Op Dba Fairpoint Comm - Nh
603-848MerrimackUnited States Cellular Corp. - New Hampshire
603-851HooksettBell Atlantic Nynex Mobile
603-852ManchesterOmnipoint Miami E License, Llc
603-853PortsmouthFreedom Ring Communications, Llc
603-854DerryNew Cingular Wireless Pcs, Llc - Dc
603-855RochesterIdt America Corp - Nh
603-856HooksettChoice One Communications Of New Hampshire, Inc.
603-858ManchesterOmnipoint Miami E License, Llc
603-859New DurhamUnion Telephone Co. - Nh
603-860HooksettBell Atlantic Nynex Mobile
603-861ManchesterBrooks Fiber Communications Of New Hampshire - Nh
603-862ManchesterPaetec Communications, Inc. - Nh
603-863NewportNo New England Tel Op Dba Fairpoint Comm - Nh
603-864NashuaNo New England Tel Op Dba Fairpoint Comm - Nh
603-865NewportNo New England Tel Op Dba Fairpoint Comm - Nh
603-866ManchesterOmnipoint Miami E License, Llc
603-867DerryNew Cingular Wireless Pcs, Llc - Dc
603-868DurhamNo New England Tel Op Dba Fairpoint Comm - Nh
603-869BethlehemNo New England Tel Op Dba Fairpoint Comm - Nh
603-870SalemNo New England Tel Op Dba Fairpoint Comm - Nh
603-871ManchesterLevel 3 Communications - Nh
603-872RochesterIdt America Corp - Nh
603-874ManchesterLevel 3 Communications - Nh
603-875AltonUnion Telephone Co. - Nh
603-876MarlboroughNo New England Tel Op Dba Fairpoint Comm - Nh
603-877ManchesterComcast Phone Of New Hampshire, Llc - Nh
603-878GreenvilleNo New England Tel Op Dba Fairpoint Comm - Nh
603-879NashuaNo New England Tel Op Dba Fairpoint Comm - Nh
603-880NashuaNo New England Tel Op Dba Fairpoint Comm - Nh
603-881NashuaNo New England Tel Op Dba Fairpoint Comm - Nh
603-882NashuaNo New England Tel Op Dba Fairpoint Comm - Nh
603-883NashuaNo New England Tel Op Dba Fairpoint Comm - Nh
603-884NashuaNo New England Tel Op Dba Fairpoint Comm - Nh
603-885NashuaNo New England Tel Op Dba Fairpoint Comm - Nh
603-886NashuaNo New England Tel Op Dba Fairpoint Comm - Nh
603-887ChesterGranite State Telephone, Inc.
603-888NashuaNo New England Tel Op Dba Fairpoint Comm - Nh
603-889NashuaNo New England Tel Op Dba Fairpoint Comm - Nh
603-890SalemNo New England Tel Op Dba Fairpoint Comm - Nh