312 Area Code has 683 prefixes

PrefixPrimary CityCarrier
312-645ChicagoAmeritech Illinois
312-646Arlington HeightsBroadwing Communications, Llc - Il
312-647ChicagoT-mobile Usa, Inc.
312-648ChicagoAmeritech Illinois
312-649ChicagoAmeritech Illinois
312-650ChicagoRcn Telecom Services Of Illinois, Inc. - Il
312-651ChicagoAmeritech Illinois
312-653ChicagoAmeritech Illinois
312-654ChicagoAmeritech Illinois
312-655ChicagoAmeritech Illinois
312-656Arlington HeightsSprint Spectrum L.p.
312-657NapervilleUsa Mobility Wireless, Inc.
312-658ChicagoAmeritech Illinois
312-659WillowbrookNew Cingular Wireless Pcs, Llc - Il
312-660ChicagoTeleport Communications America, Llc - Il
312-661ChicagoAmeritech Illinois
312-662ChicagoAmeritech Illinois
312-663ChicagoAmeritech Illinois
312-664ChicagoAmeritech Illinois
312-665ChicagoTeleport Communications America, Llc - Il
312-666ChicagoAmeritech Illinois
312-667ChicagoPeerless Network Of Illinois, Llc - Il
312-669ChicagoAmeritech Illinois
312-670ChicagoAmeritech Illinois
312-671Arlington HeightsSprint Spectrum L.p.
312-672ChicagoAmeritech Illinois
312-673ChicagoFirst Communications Llc - Il
312-674ChicagoAmeritech Illinois
312-675Arlington HeightsAmeritech Illinois
312-676ChicagoFirst Communications Llc - Il
312-677NapervilleUsa Mobility Wireless, Inc.
312-678ChicagoT-mobile Usa, Inc.
312-679ChicagoAmerican Messaging Services, Llc
312-680NapervilleUsa Mobility Wireless, Inc.
312-681ChicagoAmeritech Illinois
312-682NapervilleUsa Mobility Wireless, Inc.
312-683ChicagoAmeritech Illinois
312-685Arlington HeightsSprint Spectrum L.p.
312-688NapervilleUsa Mobility Wireless, Inc.
312-689ChicagoAmerican Messaging Services, Llc
312-690ChicagoRclec, Inc. - Il
312-691HammondIndiana Paging Ntwk
312-692ChicagoAmeritech Illinois
312-694ChicagoAmeritech Illinois
312-696ChicagoAmeritech Illinois
312-697ChicagoAmeritech Illinois
312-698Arlington HeightsBroadwing Communications, Llc - Il
312-699WillowbrookNew Cingular Wireless Pcs, Llc - Il
312-701ChicagoAmeritech Illinois
312-702ChicagoMcimetro Access Transmission Services Llc
312-703ChicagoAmeritech Illinois
312-704ChicagoAmeritech Illinois
312-705ChicagoTeleport Communications America, Llc - Il
312-706ChicagoTeleport Communications America, Llc - Il
312-707ChicagoAmeritech Illinois
312-709ChicagoT-mobile Usa, Inc.
312-710ChicagoAmeritech Illinois
312-712ChicagoAmeritech Illinois
312-713ChicagoAmerican Messaging Services, Llc
312-714ChicagoAmeritech Illinois
312-715ChicagoAmeritech Illinois
312-716ChicagoAmeritech Illinois
312-717NapervilleUsa Mobility Wireless, Inc.
312-718ElginCellco Partnership Dba Verizon Wireless - Il
312-719Arlington HeightsSprint Spectrum L.p.
312-720ElginCellco Partnership Dba Verizon Wireless - Il
312-721ChicagoT-mobile Usa, Inc.
312-724ChicagoBandwidth.com Clec, Llc - Il
312-725ChicagoBandwidth.com Clec, Llc - Il
312-726ChicagoAmeritech Illinois
312-729ChicagoAmeritech Illinois
312-730ChicagoAt&t Local
312-731ChicagoT-mobile Usa, Inc.
312-732ChicagoAmeritech Illinois
312-733ChicagoAmeritech Illinois
312-735Arlington HeightsSprint Spectrum L.p.
312-737ChicagoAmeritech Illinois
312-738ChicagoAmeritech Illinois
312-739ChicagoAmeritech Illinois
312-740ChicagoAmerican Messaging Services, Llc
312-742ChicagoAmeritech Illinois
312-743ChicagoAmeritech Illinois
312-744ChicagoAmeritech Illinois
312-745ChicagoAmeritech Illinois
312-746ChicagoAmeritech Illinois
312-747ChicagoAmeritech Illinois
312-748NapervilleUsa Mobility Wireless, Inc.
312-749WillowbrookNew Cingular Wireless Pcs, Llc - Il
312-750ChicagoAmeritech Illinois
312-751ChicagoAmeritech Illinois
312-752Arlington HeightsBroadwing Communications, Llc - Il
312-753ChicagoRcn Telecom Services Of Illinois, Inc. - Il
312-754ChicagoLevel 3 Telecom Of Illinois, Llc - Il
312-755ChicagoAmeritech Illinois
312-756ChicagoAmeritech Illinois
312-757ChicagoGetgo Communications Llc - Il
312-758ElginCellco Partnership Dba Verizon Wireless - Il
312-759ChicagoAmeritech Illinois
312-760ChicagoAmerican Messaging Services, Llc
312-762ChicagoAmeritech Illinois
312-763ChicagoComcast Phone Of Illinois, Llc Dba Comco - Il
312-765ChicagoAmeritech Illinois
312-768Arlington HeightsAt&t Local
312-769HammondIndiana Paging Ntwk
312-770ChicagoAmeritech Illinois
312-771ElginCellco Partnership Dba Verizon Wireless - Il
312-772WillowbrookNew Cingular Wireless Pcs, Llc - Il
312-774ChicagoT-mobile Usa, Inc.
312-775ChicagoAmeritech Illinois
312-777ChicagoTeleport Communications America, Llc - Il
312-780Elk Grove VillageMci Worldcom Communications, Inc. - Il
312-781ChicagoAmeritech Illinois
312-782ChicagoAmeritech Illinois
312-784ChicagoFirst Communications Llc - Il
312-786ChicagoAmeritech Illinois
312-787ChicagoAmeritech Illinois
312-788ChicagoAmeritech Illinois
312-789ChicagoAmeritech Illinois
312-790ChicagoAmeritech Illinois
312-791ChicagoAmeritech Illinois
312-793ChicagoAmeritech Illinois
312-794ChicagoRcn Telecom Services Of Illinois, Inc. - Il
312-795ChicagoAmeritech Illinois
312-797ChicagoAmeritech Illinois
312-798ChicagoAmeritech Illinois
312-799ChicagoAmeritech Illinois
312-800ChicagoPeerless Network Of Illinois, Llc - Il
312-801Chicago365 Wireless, Llc
312-802ElginCellco Partnership Dba Verizon Wireless - Il
312-803Elk Grove VillageMci Worldcom Communications, Inc. - Il
312-804ChicagoT-mobile Usa, Inc.
312-805ElginCellco Partnership Dba Verizon Wireless - Il
312-806WillowbrookNew Cingular Wireless Pcs, Llc - Il
312-807ChicagoAmeritech Illinois
312-808ChicagoAmeritech Illinois
312-809ChicagoMcimetro Access Transmission Services Llc
312-810WillowbrookNew Cingular Wireless Pcs, Llc - Il
312-812ChicagoAmeritech Illinois
312-813WillowbrookNew Cingular Wireless Pcs, Llc - Il
312-816WillowbrookNew Cingular Wireless Pcs, Llc - Il
312-817ChicagoAmeritech Illinois
312-818ChicagoT-mobile Usa, Inc.
312-819ChicagoAmeritech Illinois
312-820NapervilleUsa Mobility Wireless, Inc.
312-821BensenvilleMci Worldcom Communications, Inc. - Il
312-822ChicagoAmeritech Illinois
312-823ChicagoAmeritech Illinois
312-828ChicagoAmeritech Illinois
312-829ChicagoAmeritech Illinois
312-830NapervilleUsa Mobility Wireless, Inc.
312-831ChicagoAmeritech Illinois
312-832ChicagoAmeritech Illinois
312-833ElginCellco Partnership Dba Verizon Wireless - Il
312-834WillowbrookAmeritech Illinois
312-835ElginCellco Partnership Dba Verizon Wireless - Il
312-836ChicagoAmeritech Illinois
312-839ChicagoAmerican Messaging Services, Llc
312-840ChicagoAmeritech Illinois
312-841WillowbrookNew Cingular Wireless Pcs, Llc - Il
312-842ChicagoAmeritech Illinois
312-843ChicagoTeleport Communications America, Llc - Il
312-844WillowbrookNew Cingular Wireless Pcs, Llc - Il
312-845ChicagoAmeritech Illinois
312-846ChicagoAmeritech Illinois
312-848ElginCellco Partnership Dba Verizon Wireless - Il
312-849ChicagoAmeritech Illinois
312-850ChicagoAmeritech Illinois
312-851NapervilleUsa Mobility Wireless, Inc.
312-852WillowbrookNew Cingular Wireless Pcs, Llc - Il
312-853ChicagoAmeritech Illinois
312-854ChicagoRcn Telecom Services Of Illinois, Inc. - Il
312-855ChicagoAmeritech Illinois
312-856WillowbrookAmeritech Illinois
312-857ChicagoAmeritech Illinois
312-859ElginCellco Partnership Dba Verizon Wireless - Il
312-860WillowbrookNew Cingular Wireless Pcs, Llc - Il
312-861ChicagoAmeritech Illinois
312-862ChicagoAmeritech Illinois
312-863ChicagoOvation Communications Of Illinois, Inc.
312-864ChicagoAmeritech Illinois
312-865SchaumburgNew Cingular Wireless Pcs, Llc - Il
312-867ChicagoAmeritech Illinois
312-869ChicagoAmeritech Illinois
312-870ChicagoFirst Communications Llc - Il
312-873Elk Grove VillageMci Worldcom Communications, Inc. - Il
312-875ChicagoAmeritech Illinois
312-876ChicagoAmeritech Illinois
312-878ChicagoPeerless Network Of Illinois, Llc - Il
312-879ChicagoAmeritech Illinois
312-880ChicagoAmeritech Illinois
312-881ChicagoOvation Communications Of Illinois, Inc.
312-882ElginCellco Partnership Dba Verizon Wireless - Il
312-884ChicagoOvation Communications Of Illinois, Inc.
312-886ChicagoAmeritech Illinois
312-887ChicagoAmeritech Illinois
312-888WillowbrookNew Cingular Wireless Pcs, Llc - Il
312-890Arlington HeightsSprint Spectrum L.p.
312-891NapervilleUsa Mobility Wireless, Inc.
312-892ChicagoBroadwing Comms
312-893Arlington HeightsBroadwing Communications, Llc - Il