FCC.reportPublic regulatory filings
FCC Registration Number

FRN 0002426831

Cheyenne River Sioux Tribe Telephone Authority

CORES registration

Entity name
Cheyenne River Sioux Tribe Telephone Authority
Entity type
Tribal Govt Agency
Registration date
2000-06-24
FCC source updated
2024-03-28
Contact organization
Blooston, Mordkofsky, Dickens, Duffy & Prendergast, LLP
Contact position
General Manager
Contact name
Charles Fischer
Contact address
625 N. Main St., Eagle Butte, SD 57625, United States
Contact email
[email protected]
CORES status
available
Last checked
2026-07-31 19:10:33

Connected companies

CompanyRelationshipSourceConfidence
Cheyenne River Sioux Tribal Tel. AuthorityregistrantCORES100.0%
Cheyenne River Sioux Tribal Tel. AuthorityregistrantFORM499100.0%
Cheyenne River Sioux Tribal Tel. AuthorityregistrantRMD100.0%
Cheyenne River Sioux Tribal Tel. AuthorityregistrantULS100.0%

Public regulatory phone numbers

NumberContactSourceConfidence
(202) 828-5562Salvatore Taillefer Blooston, Mordkofsky, Dickens, Duffy & Prendergast, LLP service_agentFORM49995.0%
(605) 964-2600Charles Fischer General ManagerCORES100.0%
(605) 964-2600Cheyenne River Sioux Tribal Tel. Authority customer_inquiriesFORM499100.0%
(605) 964-2600 ext. 223Ken White Eyes mitigation_contactRMD100.0%

ULS licenses

Grant dateCall signServiceStatusLicensee
2021-10-12WNXP502IGACHEYENNE RIVER SIOUX TRIBE TELEPHONE AUTHORITY
2020-10-21WRJS823EDACheyenne River Sioux Tribe Telephone Authority dba CRST Telephone Auth
2018-06-05KNKM920CDACheyenne River Sioux Tribe Telephone Authority
2018-06-05KNKM253CDACheyenne River Sioux Tribe Telephone Authority
2016-09-27KNLT766CDACHEYENNE RIVER SIOUX TRIBE TELEPH. AUTH.
2009-04-30KNKP755CRECHEYENNE RIVER SIOUX TRIBE TELEPHONE AUTHORITY

FCC Form 499 filers

Current as ofFiler IDLegal name
2026-04-01809682Cheyenne River Sioux Tribal Tel. Authority

Robocall Mitigation Database filings

RecertifiedRMD numberBusiness
2026-02-27RMD0003168Cheyenne River Sioux Tribe Telephone Authority

Broadband Data Collection providers

PublicationProvider IDHolding company
2025-12-31130243Cheyenne River Sioux Tribe Telephone Authority

Source provenance

SystemRecordRecorded nameRaw FRNObserved
FORM499809682:842178Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-24 22:14:17
FORM499809682:842180Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-24 22:14:17
FORM499809682:842177Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-24 22:14:17
FORM499809682:842179Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-24 22:14:17
FORM499809682:786532Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-24 02:44:12
FORM499809682:786531Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-24 02:44:12
FORM499809682:786530Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-24 02:44:12
FORM499809682:786533Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-24 02:44:12
FORM499809682:730885Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-22 12:44:04
FORM499809682:730884Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-22 12:44:04
FORM499809682:730886Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-22 12:44:04
FORM499809682:730883Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-22 12:44:04
ULS799494Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-13 01:18:56
FORM499809682:675236Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-11 16:48:52
FORM499809682:675237Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-11 16:48:52
FORM499809682:675239Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-11 16:48:52
FORM499809682:675238Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-11 16:48:52
FORM499809682:619589Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-10 15:18:49
FORM499809682:619591Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-10 15:18:49
FORM499809682:619592Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-10 15:18:49
FORM499809682:619590Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-10 15:18:49
FORM499809682:508296Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-08 13:18:40
FORM499809682:508298Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-08 13:18:40
FORM499809682:508295Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-08 13:18:40
FORM499809682:508297Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-08 13:18:40
FORM499809682:452651Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-06 14:18:30
FORM499809682:452650Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-06 14:18:30
FORM499809682:452648Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-06 14:18:30
FORM499809682:452649Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-06 14:18:30
RMD633039Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-06 06:48:27
FORM499809682:397002Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-05 11:18:25
FORM499809682:397003Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-05 11:18:25
FORM499809682:397004Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-05 11:18:25
FORM499809682:397001Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-05 11:18:25
FORM499809682:341355Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-04 15:18:22
FORM499809682:341357Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-04 15:18:22
FORM499809682:341356Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-04 15:18:22
FORM499809682:341354Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-04 15:18:22
FORM499809682:285707Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-03 17:48:19
FORM499809682:285710Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-03 17:48:19
FORM499809682:285708Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-03 17:48:19
FORM499809682:285709Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-03 17:48:19
FORM499809682:230060Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-03 00:48:15
FORM499809682:230063Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-03 00:48:15
FORM499809682:230061Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-03 00:48:15
FORM499809682:230062Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-03 00:48:15
FORM499809682:174413Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-01 14:48:12
FORM499809682:174414Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-01 14:48:12
FORM499809682:174416Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-01 14:48:12
FORM499809682:174415Cheyenne River Sioux Tribal Tel. Authority00024268312026-08-01 14:48:12
FORM499809682Cheyenne River Sioux Tribal Tel. Authority00024268312026-07-31 20:48:03
FORM4994101Cheyenne River Sioux Tribal Tel. Authority00024268312026-07-31 20:09:43
CORES0002426831Cheyenne River Sioux Tribe Telephone Authority00024268312026-07-31 19:10:33
RMDRMD0003168Cheyenne River Sioux Tribe Telephone Authority00024268312026-07-31 19:09:49

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