Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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

Block: A

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
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 MSSLMTMAHMD  7421 AT&T - LOCAL 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 KLSLMTAZDS0  008E BRESNAN BROADBAND OF MONTANA, LLC - MT [CHARTER] 648      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.