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NPA: 406 [Rate centres in NPA 406] [Dial plan for NPA 406]

Block: A

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-200 A Billings MT BLNGMTWEBMD  771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650      
406-201 A Forsyth MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-202 A Helena MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-203 A Missoula MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-204 A Helena MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-205 A Great Falls MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-206 A Billings MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650      
406-207 A Missoula MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-208 A Billings MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-209 A Bozeman MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-210 A Seeley Lake MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-212 A Kalispell MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-213 A Colstrip MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650      
406-214 A Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-215 A Missoula MT GRFLMTMASMD  622J SKYE TELECOM LLC DBA SKYETEL 648      
406-216 A Great Falls MT GRFLMTMAHG1  3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-217 A Great Falls MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-218 A Missoula MT MSSLMTMACMD  6529 T-MOBILE USA, INC. 648      
406-219 A Bozeman MT   994E BANDWIDTH.COM CLEC, LLC - MT 650      
406-220 A Livingston MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650      
406-221 A Butte MT   453F ONVOY, LLC - MT 648      
406-222 A Livingston MT LVTNMTMADS0  9636 QWEST CORPORATION 650      
406-223 A Livingston MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-224 A Livingston MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-225 A Boulder MT BLDRMTMARS1  9636 QWEST CORPORATION 648      
406-226 A East Glacier Park MT EGPKMTMARS1  9636 QWEST CORPORATION 648      
406-227 A Helena MT EHLNMTMARS1  9636 QWEST CORPORATION 648      
406-228 A Glasgow MT GLSGMTXCDS0  2247 NEMONT TEL COOP INC 650      
406-229 A Cut Bank MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-230 A Glasgow MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-231 A Great Falls MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-232 A Miles City MT MLCYMTMADS0  9636 QWEST CORPORATION 650      
406-233 A Miles City MT MLCYMTMADS0  9636 QWEST CORPORATION 650      
406-234 A Miles City MT MLCYMTBVDS0  7830 MID-RIVERS TELEPHONE COOPERATIVE, INC. 650      
406-235 A Wolf Creek MT WLCKMTMARS1  9636 QWEST CORPORATION 648      
406-236 A Neihart MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-237 A Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-238 A Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-239 A Missoula MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-240 A Missoula MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-241 A Missoula MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-242 A Thompson Falls MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-243 A Missoula MT MSSLMTMADS0  9636 QWEST CORPORATION 648      
406-244 A Potomac MT CLTNMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-245 A Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-246 A Dixon MT CLTNMTXCRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-247 A Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-248 A Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-249 A Kalispell MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-250 A Kalispell MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-251 A Missoula MT MSSLMTSORS1  9636 QWEST CORPORATION 648      
406-252 A Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-253 A Kalispell MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-254 A Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-255 A Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-256 A Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-257 A Kalispell MT KLSLMTXCDS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-258 A Missoula MT MLTWMTMARS1  9636 QWEST CORPORATION 648      
406-259 A Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650      
406-260 A Kalispell MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-261 A Kalispell MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-262 A Havre MT HAVRMTMADS0  9636 QWEST CORPORATION 648      
406-263 A Glasgow MT GLSGMTXC1MD  443B SAGEBRUSH CELLULAR, INC. 650      
406-264 A Fort Shaw MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-265 A Havre MT HAVRMTMADS0  9636 QWEST CORPORATION 648      
406-266 A Townsend MT TWNSMTMARS1  9636 QWEST CORPORATION 648      
406-267 A Divide MT WSDMMTXCDS0  2254 SOUTHERN MONTANA TEL. CO. 648      
406-268 A Great Falls MT GRFLMTMADS0  9636 QWEST CORPORATION 648      
406-269 A St Regis MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-270 A Kalispell MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-271 A Conrad MT CNRDMTAGDS0  3924 3 RIVERS TELEPHONE COOPERATIVE, INC. - MT 648      
406-272 A Billings MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-273 A Missoula MT LOLOMTMARS1  9636 QWEST CORPORATION 648      
406-274 A Missoula MT   771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 648      
406-275 A Pablo MT FHIRMT01RS0  2252 RONAN TEL. CO. 648      
406-276 A Lima MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-277 A Belt MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-278 A Conrad MT CNRDMTMARS1  9636 QWEST CORPORATION 648      
406-279 A Valier MT FRFDMTXCDS1  2255 3 RIVERS TEL. COOP., INC. 648      
406-280 A St Regis MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-281 A Billings MT BLNGMTWEBMD  771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650      
406-282 A Manhattan MT AMSTMTMARS1  9636 QWEST CORPORATION 650      
406-283 A Libby MT LBBYMTXCDS0  4322 ZIPLY FIBER MONTANA, LLC DBA ZIPLY FIBER 960      
406-284 A Manhattan MT MNHTMTMARS1  9636 QWEST CORPORATION 650      
406-285 A Three Forks MT THFKMTMARS1  9636 QWEST CORPORATION 650      
406-286 A Reserve MT RSRVMTXCRS1  2247 NEMONT TEL COOP INC 650      
406-287 A Whitehall MT WHTHMTMARS1  9636 QWEST CORPORATION 648      
406-288 A Drummond MT ALTNMTXBRS1  2235 BLACKFOOT TEL. COOP., INC. 648      
406-289 A Conrad MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648      
406-290 A Columbus MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-291 A Libby MT CRALIDXXGMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 960      
406-292 A Joplin MT HAVRMTXCDS0  2257 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-293 A Libby MT LBBYMTXCDS0  4322 ZIPLY FIBER MONTANA, LLC DBA ZIPLY FIBER 960      
406-294 A Billings MT BLNGMT20PS0  4222 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 650      
406-295 A Troy MT TROYMTXCDS1  4322 ZIPLY FIBER MONTANA, LLC DBA ZIPLY FIBER 960      
406-296 A Eureka MT EURKMTXCRS0  4322 ZIPLY FIBER MONTANA, LLC DBA ZIPLY FIBER 960      
406-297 A Eureka Rural MT ERKRMTXCDS1  3959 INTERBEL TELEPHONE COOPERATIVE, INC. - MT 648      
406-298 A Columbus MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-299 A Butte MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-300 A Kalispell MT KLSLMTAZ1MD  792K CHARTER IP ENABLED SERVICES, LLC 648      

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Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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