FCC.reportPublic regulatory filings
FCC Registration Number

FRN 0012478665

NorthWestern Corporation

CORES registration

Entity name
NorthWestern Corporation
Entity type
Federal Agency
Registration date
2005-01-10
FCC source updated
2020-07-21
Contact organization
NorthWestern Energy
Contact position
Telecom Engineer
Contact name
Kirt Mayson
Contact address
11 E. Park Street, Butte, MT 59701, United States
CORES status
available
Last checked
2026-08-04 04:48:51

Connected companies

CompanyRelationshipSourceConfidence
NorthWestern CorporationownerASR100.0%
NorthWestern CorporationregistrantASR100.0%
NorthWestern CorporationregistrantCORES100.0%
NorthWestern CorporationlicenseeULS100.0%
NorthWestern CorporationregistrantULS100.0%

Public regulatory phone numbers

NumberContactSourceConfidence
(406) 497-1000NorthWestern Corporation ownerASR100.0%
(406) 497-1000NorthWestern Corporation LULS100.0%
(406) 497-2163Kirt Mayson Telecom EngineerCORES100.0%
(406) 497-3451NorthWestern Corporation LULS100.0%
(406) 497-3845NorthWestern Corporation LULS100.0%

ULS licenses

Grant dateCall signServiceStatusLicensee
2026-08-03WSNT465MGANorthWestern Corporation
2026-07-14WSNN474MGANorthWestern Corporation
2026-07-14WSNN473MGANorthWestern Corporation
2026-07-14WSNN317MGANorthWestern Corporation
2026-06-30WQYF618MGANorthWestern Corporation
2026-06-30WQYF617MGANorthWestern Corporation
2026-05-19WQYA437MGANorthWestern Corporation
2026-05-19WQXZ617MGANorthWestern Corporation
2026-05-19WQFK348MGANorthWestern Corporation
2026-05-19WQXV638MGANorthWestern Corporation
2026-04-21WSMN561MGANorthWestern Corporation
2026-04-21WSMN560MGANorthWestern Corporation
2026-04-20WQEY675MGANorthwestern Corporation
2026-04-10WQEU887MGANorthwestern Corporation
2026-04-10WQXQ551MGANorthwestern Corporation
2026-04-10WQXR770MGANorthWestern Corporation
2026-01-22WQXD645MGANorthWestern Corporation
2025-12-03WQWZ710MGANorthwestern Corporation
2025-12-03WQXA328MGANorthwestern Corporation
2025-11-27WQWV322MGANorthwestern Corporation
2025-11-27WQXB536MGANorthwestern Corporation
2025-09-24WRKD684PCANorthWestern Corporation
2025-09-20WSKD496MGANorthWestern Corporation
2025-09-06WQWU331MGANorthwestern Corporation
2025-09-06WQWT985MGANorthwestern Corporation
2025-08-23WQWR659MGANorthWestern Corporation
2025-08-23WQWL452MGANorthWestern Corporation
2025-08-23WQWR660MGANorthWestern Corporation
2025-08-23WQDH976MGANorthWestern Corporation
2025-08-23WQWR661MGANorthWestern Corporation
2025-08-23WQWL451MGANorthWestern Corporation
2025-08-22WQDL953IGANORTHWESTERN CORPORATION
2025-06-24WQWA280MGANorthWestern Corporation
2025-06-24WQWC309MGANorthWestern Corporation
2025-06-24WQWF237MGANorthWestern Corporation
2025-06-24WQDH358MGANorthWestern Corporation
2025-06-24WQDH388MGANorthWestern Corporation
2025-05-21WQCU722MGANorthWestern Corporation
2025-05-21WQCU724MGANorthWestern Corporation
2025-04-16WQVR820IGANORTHWESTERN CORPORATION
2025-04-03WQVN416YGANORTHWESTERN CORPORATION
2024-11-26WQUZ907IGANORTHWESTERN CORPORATION
2024-11-26WQCA460MGANorthWestern Corporation
2024-11-26WNRD730IGANorthWestern Corporation
2024-10-29WQUQ655MGANorthWestern Corporation
2024-09-26WQUT418IGANORTHWESTERN CORPORATION
2024-09-26WQUT415IGANORTHWESTERN CORPORATION
2024-09-26WQUW487MGANorthWestern Corporation
2024-09-26WQUT423IGANORTHWESTERN CORPORATION
2024-09-26WPOY390IGANorthWestern Corporation
2024-09-26WQUT422IGANORTHWESTERN CORPORATION
2024-09-26WQUV639YGANORTHWESTERN CORPORATION
2024-09-26WQUT429IGANORTHWESTERN CORPORATION
2024-09-26WPFG573IGANorthwestern Corporation
2024-09-26WQUT421IGANORTHWESTERN CORPORATION
2024-09-26WNQE646IGANorthWestern Corporation
2024-09-26WQUT416IGANORTHWESTERN CORPORATION
2024-06-07WQAI456IGANorthWestern Corporation
2024-06-07WQAI455IGANorthWestern Corporation
2024-06-07WPFP376IGANorthWestern Corporation
2024-06-07WSDG227MGANorthWestern Corporation
2024-06-07WQUG711MGANorthWestern Corporation
2024-06-07WQAI454IGANorthWestern Corporation
2024-06-07WNQA250IGANorthWestern Corporation
2024-06-07WQUE918MGANorthWestern Corporation
2024-04-06WSCH520MGANorthWestern Corporation
2024-04-06WSCH519MGANorthWestern Corporation
2024-04-06WSCH521MGANorthWestern Corporation
2024-03-09WQTS763MGANorthWestern Corporation
2024-03-09WQTV860MGANorthWestern Corporation
2024-03-09WQTX683MGANorthWestern Corporation
2024-03-01WQTV952IGANORTHWESTERN CORPORATION
2024-03-01WQTP839IGANORTHWESTERN CORPORATION
2024-03-01WQTR548IGANORTHWESTERN CORPORATION
2024-03-01WQTP969YGANORTHWESTERN CORPORATION
2024-03-01WQTP948YGANORTHWESTERN CORPORATION
2024-02-29WQTM845MGANorthWestern Corporation
2024-02-21WQTL303IGANORTHWESTERN CORPORATION
2024-01-23WQSW504MGANorthWestern Corporation
2023-12-15WQTE401MGANorthWestern Corporation
2023-11-21WQSN213CPANorthWestern Corporation
2023-11-21WQSN219CPANorthWestern Corporation
2023-09-15WQSS514MGANorthWestern Corporation
2023-09-15WQSR886MGANorthWestern Corporation
2023-09-15WQSS516MGANorthWestern Corporation
2023-09-15WQSR875MGANorthWestern Corporation
2023-09-15WQSR888MGANorthWestern Corporation
2023-09-15WQSS510MGANorthWestern Corporation
2023-09-15WQSR887MGANorthWestern Corporation
2023-09-01WQSD693MGANorthWestern Corporation
2023-08-04WQRL773MGANorthWestern Corporation
2023-08-01WQRU420MGANorthWestern Corporation
2023-08-01WQRU423MGANorthWestern Corporation
2023-08-01WQRU421MGANorthWestern Corporation
2023-08-01WQRU415MGANorthWestern Corporation
2023-07-28WQSB375YGANORTHWESTERN CORPORATION
2023-07-12WQRL394MGANorthWestern Corporation
2023-07-12WQRM989YGANORTHWESTERN CORPORATION
2023-07-12WQRL303MGANorthWestern Corporation
2023-07-12WXG408IGANorthWestern Corporation

FCC auction bidders

AuctionClosedBidderStatusNet commitment
Auction 105
3.5 GHz		2020-08-25NorthWestern Corporation

Antenna Structure Registrations

IssuedRegistrationRegistrantStatus
2026-08-041039345NorthWestern CorporationDI
2026-08-041039346NorthWestern CorporationDI
2024-05-241328001NorthWestern CorporationAM
2023-09-281326049NorthWestern CorporationAM
2021-11-041315342NorthWestern CorporationNT
2020-10-291208480NorthWestern CorporationAU
2020-10-291209286NorthWestern CorporationAU
2020-10-291024161NorthWestern CorporationAU
2020-10-291206858NorthWestern CorporationAU
2020-10-291043904NorthWestern CorporationAU
2020-10-291003787NorthWestern CorporationAU
2020-10-291051582NorthWestern CorporationAU
2020-10-291212871NorthWestern CorporationAU
2020-10-291288475NorthWestern CorporationAU
2020-10-291307552NorthWestern CorporationAU
2020-10-291033667NorthWestern CorporationAU
2020-10-291038105NorthWestern CorporationAU
2020-10-291288476NorthWestern CorporationAU
2020-10-291224798NorthWestern CorporationAU
2020-10-291253254NorthWestern CorporationAU
2020-10-291206223NorthWestern CorporationAU
2020-10-291294030NorthWestern CorporationAU
2020-10-291023316NorthWestern CorporationAU
2020-10-291035411NorthWestern CorporationAU
2020-10-291023311NorthWestern CorporationAU
2020-10-291023315NorthWestern CorporationAU
2020-10-291039348NorthWestern CorporationAU
2020-10-291301932NorthWestern CorporationAU
2020-10-291246407NorthWestern CorporationAU
2020-10-291028719NorthWestern CorporationAU
2020-10-291038106NorthWestern CorporationAU
2020-10-291048667NorthWestern CorporationAU
2020-10-291293429NorthWestern CorporationAU
2020-10-291025596NorthWestern CorporationAU
2020-10-291208482NorthWestern CorporationAU
2020-10-291039354NorthWestern CorporationAU
2020-10-291023308NorthWestern CorporationAU
2020-10-291023312NorthWestern CorporationAU
2020-10-291024160NorthWestern CorporationAU
2020-10-291023317NorthWestern CorporationAU
2020-10-291307456NorthWestern CorporationAU
2020-10-291026666NorthWestern CorporationAU
2020-10-291302063NorthWestern CorporationAU
2020-10-291055992NorthWestern CorporationAU
2020-10-291039349NorthWestern CorporationAU
2020-10-291038107NorthWestern CorporationAU
2020-10-291274020NorthWestern CorporationAU
2020-10-291039344NorthWestern CorporationAU
2020-10-291293319NorthWestern CorporationAU
2020-10-291023313NorthWestern CorporationAU
2020-10-291283926NorthWestern CorporationAU
2020-10-291304142NorthWestern CorporationAU
2020-10-291039351NorthWestern CorporationAU
2020-10-291277708NorthWestern CorporationAU
2020-10-291235048NorthWestern CorporationAU
2020-10-291032302NorthWestern CorporationAU
2020-10-291268551NorthWestern CorporationAU
2020-10-291039350NorthWestern CorporationAU
2020-10-291288383NorthWestern CorporationAU
2020-10-291034992NorthWestern CorporationAU
2020-10-291054499NorthWestern CorporationAU
2020-10-291023309NorthWestern CorporationAU
2020-10-291290115NorthWestern CorporationAU
2020-10-291288495NorthWestern CorporationAU
2020-10-291023310NorthWestern CorporationAU
2020-10-291039353NorthWestern CorporationAU
2020-10-291041546NorthWestern CorporationAU
2020-10-291038108NorthWestern CorporationAU
2018-12-181039352NorthWestern CorporationDI
2016-05-311044852NorthWestern CorporationDI
2006-12-141039347NorthWestern CorporationAU

Source provenance

SystemRecordRecorded nameRaw FRNObserved
ASRac3d75945fb8f834032cd2dd6798b430ded6ace2b67ca6d83b6642d2da44e1f9NorthWestern Corporation00124786652026-08-10 19:48:56
ASRabfde2af61d755079ea880976dbde92144d50ac69c758b4c8b1baf0f94c37a66NorthWestern Corporation00124786652026-08-10 19:48:55
ULS05f11106fa56cac592e65b9f72ed435da5362ff91876e81e4dfd41367dc8af3bNorthWestern Corporation00124786652026-08-10 14:48:55
ASRa8ded452e0ddb3960f880360c4364fef7a0c9e32571f8b86a14e3d3afb608e33NorthWestern Corporation00124786652026-08-10 14:48:52
ULS05f04e06507ced7ddda450d568d42cf8f15f1416e9af9352499fc352c6f6e442NorthWestern Corporation00124786652026-08-10 12:48:56
ASRa554b37b46e74f7fbccc26d3e6171cfd74dbc28ac905c3501d3a7c81ac1d8da4NorthWestern Corporation00124786652026-08-10 08:48:48
ASRa24ea3a61d18fe130839eafc784f560ea3369d7a060eefd3c08efd640960cea5NorthWestern Corporation00124786652026-08-10 04:18:48
ASRa0e22596f751181710032b9fb8dabafab4380ce8bf18a92c6828b74ebb810eaaNorthWestern Corporation00124786652026-08-10 03:18:48
ULS748630NorthWestern Corporation00124786652026-08-09 22:48:45
ULS056ffb9b10deb5bf4f40a23a2b207e15887cc59cb61ced05d0429011a06e073dNorthWestern Corporation00124786652026-08-09 12:18:55
ULS0562c1c7eeca590571fc609a25a30c7a3afe6f5c8028d8aa1bc26aa6a2052fb9NorthWestern Corporation00124786652026-08-09 08:18:52
ULS053422e6ad492f2eb118845e52932b1904280e7340395f1cbe82a44826a09553NorthWestern Corporation00124786652026-08-08 23:18:47
ASR94c4984482c3d8a9a7d6ff77045bcba97e5ae3f0078650dac98a94e111ad1514NorthWestern Corporation00124786652026-08-08 22:48:45
ASR943b70202f8d1826f05eee42b2d23bd565ef8f20761031b395fbe98617a334b4NorthWestern Corporation00124786652026-08-08 19:18:46
ASR9374adb5106d5801b6fae9a3c2661449f34612a975f07b0291179f8664996d60NorthWestern Corporation00124786652026-08-08 17:18:44
ASR904f7ed664030573a78ea1d5ffa39aa07fbc3fe03b81f9dd4785005fa41bcb1dNorthWestern Corporation00124786652026-08-08 11:48:43
ASR8e3126b80479058deda83a33fd4e52e6a659660ff5a58754dc5080d241b085b7NorthWestern Corporation00124786652026-08-08 09:48:41
ULS04e092e8a9c7a155f63ea663fc108cb93506b1e4c47c7a8bccfeb1e8af4b2513NorthWestern Corporation00124786652026-08-08 07:18:47
ULS04c005ac29c3a2db0a84bfc251c0a2fdbf50abac5e2254aa3e1c77fcad56a4fbNorthWestern Corporation00124786652026-08-08 03:48:44
ASR88c8a8df987852633b03ceb91fc01ee4f93abe537afeef53cf922b96fc86f88aNorthWestern Corporation00124786652026-08-08 03:48:40
ASR88bebc4546a76806b877127ae6b8c531a8c4acc89a2d5bc0ec00bc79c7c206e2NorthWestern Corporation00124786652026-08-08 03:48:40
ULS049f75fc95ce4ea00a7155e71d911af3eb2a5defe3c2a666e74d53144db7c44dNORTHWESTERN CORPORATION00124786652026-08-08 00:48:44
ASR670715NorthWestern Corporation00124786652026-08-07 19:48:34
ASR7d3285492a2c9e60c1ce5321d006748560cb2f970c77fb1d4938a40897ab8d7fNorthWestern Corporation00124786652026-08-07 08:48:36
ULS043c73b523f4f07378b2514f490991aab82c8242b5bd9af375e478476d881670NORTHWESTERN CORPORATION00124786652026-08-07 05:48:44
ASR7a46b8a4d5850e2fb12db1b22e2f438c7f7284517bd06d82523fa4744ba85f8cNorthWestern Corporation00124786652026-08-07 03:18:33
ASR79a850646323eab4a9aa7c2ae8a6fb999d2cde0dd9efbd29fa81ac398a524c42NorthWestern Corporation00124786652026-08-07 02:48:35
ASR779d7ca9dff7e7a3ca15823aa61cc2fee11e36bd4c42db28e47dee3b482024a5NorthWestern Corporation00124786652026-08-07 00:18:37
ASR752fb3bae1ea122d3b3a6e715d1b59395ff294713c81d1121bfe0c9053a7bf19NorthWestern Corporation00124786652026-08-06 19:18:33
ASR7526018278d1ca66e68587864b583fb4ad0fd0f09e69da48391a1a01f76571d4NorthWestern Corporation00124786652026-08-06 19:18:33
ULS03f591eef1375914640a5727657dc2c51754a0b414b8e0c32a253ec91e28aeb9NorthWestern Corporation00124786652026-08-06 18:18:37
ASR7436925cb4157c47af9aeb4ae11b7a04dfbc3a34dd08c22828e7ecb1459565cfNorthWestern Corporation00124786652026-08-06 18:18:34
ASR704fe8644a2229075e7b8d4caaeeaad647f4f3c3cea2ca5bc09cfa922879b754NorthWestern Corporation00124786652026-08-06 13:48:34
ASR6fe7e75786ceea785ad8ae86087984c1734b76a8d00965fbf357de03457a1d9bNorthWestern Corporation00124786652026-08-06 12:48:35
ASR6eb9bd69197f38cc991151b65890c9ccf48627da8f874185bd3b6b1536aa34fcNorthWestern Corporation00124786652026-08-06 11:18:33
ASR6b79dda39497b3b1e130a26c387615928dedbea3103f69e21e7e45059c73d765NorthWestern Corporation00124786652026-08-06 08:48:31
ASR65831096c4688f8cb754598a11f2fc8cd8ebe83dab7ea02af4fe4b565265aeb5NorthWestern Corporation00124786652026-08-06 00:48:29
ASR61c7a81136a5dfa9a5451acb34178fff7b76a29dc963ee384a87ad89bb2715d4NorthWestern Corporation00124786652026-08-05 19:48:29
ASR5cf464e9c8e43942b7d627b1be79599902a3635e90752bcab29ef3e810f2763fNorthWestern Corporation00124786652026-08-05 14:48:30
ULS0308af04c4d133b35babd17c5febf7a9029b6f86b104e3feb62654bcb192a1d4NorthWestern Corporation00124786652026-08-05 13:48:32
ASR5a3d01725a82bd75140942750535313cefce1b6c7326a015f403f72b9e6c2e4dNorthWestern Corporation00124786652026-08-05 12:18:28
ULS02ce25a3229ad2332cc10617b39ad659e17d8e5c2f2a90d4843484d667021b91NorthWestern Corporation00124786652026-08-05 08:18:32
ASR545f1728ed49ad5fafbce38db0a448071e772e2b5c2fe219a666cb9de0d622b5NorthWestern Corporation00124786652026-08-05 06:48:26
ASR51769dfd8b52d0ede5a23bfeb34d9b2d8963ab9ff61f81e9a9435815720ce0bbNorthWestern Corporation00124786652026-08-05 04:18:25
ULS029f5f03f0b648bb1a0ca4ae80fc617a815918729fd78467b59676485b840553NorthWestern Corporation00124786652026-08-05 03:48:29
ULS029849ad3e14490942711f9c43a2b88711044c28889a01b2b69f724e1778155fNorthWestern Corporation00124786652026-08-05 02:48:30
ASR4eeb7afd06f600c7b504ef332b8bb0b223e8b08a4a2adfc12811cf3800fa6722NorthWestern Corporation00124786652026-08-05 00:18:26
ULS027dfdbd18d2944bb48a6927e3b29d44f038c262fffc57cc8ba298a62496778bNorthWestern Corporation00124786652026-08-04 23:18:30
ASR4c59ac5e9d7bd4ec9bdd5ee207b7162b22222f8878bc498a718331778a92f901NorthWestern Corporation00124786652026-08-04 21:48:25
ASR44567201a2f2c9ef30382bc0d74e7e616b769b4e3b54a1de3d940e984b137ab4NorthWestern Corporation00124786652026-08-04 10:18:25
ASR4441fa2d317e4b849b373c7a0f1b48080629f4a3d7144fb80a5ac8b2db2d8c36NorthWestern Corporation00124786652026-08-04 10:18:25
CORES0012478665NorthWestern Corporation00124786652026-08-04 04:48:51
ULS01f8880a3a3e264b3634dd6157566a06f20687ebb9c8eece26145c6512c09befNorthwestern Corporation00124786652026-08-04 04:48:26
ASR3d7c824d708468cbfea461d9b74f54cfd77c6eed997ca10281735c9e602c0e6dNorthWestern Corporation00124786652026-08-04 01:18:20
ASR3d384bcef1708143ac0d7d254694c97dfef36cabfe8d845a86514e377fa0e04dNorthWestern Corporation00124786652026-08-04 00:48:23
ULS0183cc427c776c8bc813c3cf019b495102ae2cd55cf5dfcfb69f166c2bb76aefNorthWestern Corporation00124786652026-08-03 12:18:24
ASR317348e38f06e016c3eed9267fa6cb6cb8726c74799006c0e72803c88570711cNorthWestern Corporation00124786652026-08-03 08:18:23
ASR2dc90565fdcf5bc2fd6aab35e7a240e2eb2938060bb85c2b4ff5a639b86067baNorthWestern Corporation00124786652026-08-03 02:18:21
ULS01236ef3288966a998966461cc8265aab388b8f0ca2cf57cf7db237988b77802NORTHWESTERN CORPORATION00124786652026-08-02 20:18:25
ASR24deb1e31ae09ecac1e0cea53c4e96d348f6a655f01a12695a44f6353e2f6902NorthWestern Corporation00124786652026-08-02 07:48:17
ASR2159617357d495202faee082804b8b2ae24e51fa7426aa7c288ef28861181e23NorthWestern Corporation00124786652026-08-02 04:18:15
ASR1eef3f9406cf6a22fac7b78967ac983721f0dc00663d88083e20f9e976d4a2b4NorthWestern Corporation00124786652026-08-02 00:18:15
ASR1cab3a86d0d494928cdb06559f333f859ee51a0d967c69da9e08c57e524a4f76NorthWestern Corporation00124786652026-08-01 22:18:15
ASR137a29468dfb7e4019bb552355cdb65a0dcdecf48228b8eb4bd7ef940e6ca544NorthWestern Corporation00124786652026-08-01 13:48:12
ASR10842fc2bc0c6ac669b053182da230fd7535f53edc87b811ad50b06e94bb5acdNorthWestern Corporation00124786652026-08-01 10:18:13
ASR0e99196e7bacaeee410327dd3f6656efd585994378877c6785f4e596d062f699NorthWestern Corporation00124786652026-08-01 07:18:14
ULS005905c50037bbf18525aa5c7b3a0739955c03e937fae3b1c2c7f74b71cc5779NorthWestern Corporation00124786652026-08-01 06:18:13
ASR0c29daa1a0ce949fa3f0402f0c77c3a8631b097b530112af7cea9c9649c9e1e8NorthWestern Corporation00124786652026-08-01 06:18:11
ASR02764167b2488344013cbd5d8a173aa49e8e0c867d014e3084658fb7360b9eedNorthWestern Corporation00124786652026-07-31 19:09:47

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