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Area Codes > 406 > Central Office Codes

Exchange Rate Center State Operating Company
406-899 GREATFALLS MT WESTERN WIRELESS CORPORATION-MT
406-911 MT
406-914 LAMBERT MT CABLE & COMMUNICATIONS CORPORATION
406-915 SO WOLF PT MT CABLE & COMMUNICATIONS CORPORATION
406-920 BOZEMAN MT SPRINT SPECTRUM L.P.- MT
406-921 MT
406-922 BOZEMAN MT ONE EIGHTY COMMUNICATIONS, INC. - MT
406-923 GREATFALLS MT COMMPARTNERS, LLC - MT
406-924 BELGRADE MT LEVEL 3 COMMUNICATIONS, LLC - MT
406-925 DILLON MT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT
406-928 GRASSRANGE MT CABLE & COMMUNICATIONS CORPORATION
406-929 HUNGRYHORS MT 360NETWORKS (USA) INC. - MT
406-930 BIG TIMBER MT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT
406-931 BIG TIMBER MT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT
406-932 BIG TIMBER MT TRIANGLE TELEPHONE COOPERATIVE ASSN., INC.
406-933 HELENA MT QWEST CORPORATION
406-934 MILES CITY MT CABLE & COMMUNICATIONS CORPORATION
406-935 BROADUS MT CABLE & COMMUNICATIONS CORPORATION
406-936 BIG TIMBER MT MTPCS, LLC
406-937 SUNBURST MT NORTHERN TELEPHONE COOPERATIVE, INC.
406-938 ALZADA MT CABLE & COMMUNICATIONS CORPORATION
406-939 W GLENDIVE MT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT
406-941 W GLENDIVE MT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT
406-943 SIDNEY MT LEVEL 3 COMMUNICATIONS, LLC - MT
406-944 MILES CITY MT LEVEL 3 COMMUNICATIONS, LLC - MT
406-945 HAVRE MT WESTERN WIRELESS CORPORATION-MT
406-946 LIVINGSTON MT LEVEL 3 COMMUNICATIONS, LLC - MT
406-947 MUSSELSHLL MT MID-RIVERS TELEPHONE COOPERATIVE, INC.
406-948 GLENDIVE MT LEVEL 3 COMMUNICATIONS, LLC - MT
406-949 TOWNSEND MT WESTERN WIRELESS CORPORATION-MT
406-950 MT QWEST CORPORATION
406-951 MILES CITY MT WESTERN WIRELESS CORPORATION-MT
406-952 GREATFALLS MT IDT AMERICA CORP. - MT
406-953 HARDIN MT LEVEL 3 COMMUNICATIONS, LLC - MT
406-954 ROY MT CABLE & COMMUNICATIONS CORPORATION
406-957 TERRY MT CABLE & COMMUNICATIONS CORPORATION
406-958 MT
406-959 MT
406-960 DILLON MT LEVEL 3 COMMUNICATIONS, LLC - MT
406-961 HAMILTON MT QWEST CORPORATION
406-962 JOLIET MT QWEST CORPORATION
406-963 FROIDRURAL MT NEMONT TELEPHONE COOPERATIVE, INC.
406-964 GREATFALLS MT QWEST CORPORATION
406-965 GREATFALLS MT QWEST CORPORATION
406-966 SHELBY MT LEVEL 3 COMMUNICATIONS, LLC - MT
406-967 WORDEN MT PROJECT TELEPHONE CO., INC.
406-968 LEWISTOWN MT LEVEL 3 COMMUNICATIONS, LLC - MT
406-971 PLEVNA MT CABLE & COMMUNICATIONS CORPORATION
406-972 WCAMPCROOK MT WEST RIVER COOPERATIVE TELEPHONE COMPANY
406-973 SIDNEY MT CABLE & COMMUNICATIONS CORPORATION
406-974 CIRCLE MT CABLE & COMMUNICATIONS CORPORATION
406-975 EKALAKA MT CABLE & COMMUNICATIONS CORPORATION
406-976 MT QWEST CORPORATION
406-977 JORDAN MT CABLE & COMMUNICATIONS CORPORATION
406-978 BAKER MT CABLE & COMMUNICATIONS CORPORATION
406-979 RICHEY MT CABLE & COMMUNICATIONS CORPORATION
406-980 TOWNSEND MT CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT
406-981 SOMILES CY MT CABLE & COMMUNICATIONS CORPORATION
406-982 YELLOW BAY MT CENTURYTEL OF MONTANA, INC.
406-983 ASHLAND MT CABLE & COMMUNICATIONS CORPORATION
406-984 BIRNEY MT RANGE TELEPHONE COOPERATIVE, INC.
406-986 MT
406-987 GLENDIVE MT CABLE & COMMUNICATIONS CORPORATION
406-988 DILLON MT COMMPARTNERS, LLC - MT
406-989 W GLENDIVE MT WESTERN WIRELESS CORPORATION-MT
406-991 MARION MT 360NETWORKS (USA) INC. - MT
406-993 BIG SKY MT 3 RIVERS TELEPHONE COOPERATIVE, INC.
406-994 BOZEMAN MT QWEST CORPORATION
406-995 BIG SKY MT 3 RIVERS TELEPHONE COOPERATIVE, INC.
406-999 BIG SKY MT MONTANA OPTICOM, LLC - MT