FCC Registration Number
FRN 0002643377
ULS licenses
| Grant date | Call sign | Service | Status | Licensee |
|---|---|---|---|---|
| 2025-04-15 | WQWB257 | IG | A | Northstar Materials, dba Knife River Materials |
| 2023-08-18 | WXR766 | IG | A | Northstar Materials, Inc. dba Knife River Materials |
| 2023-08-18 | WDY484 | IG | A | Northstar Materials, Inc. dba Knife River Materials |
| 2023-08-18 | WDY485 | IG | A | Northstar Materials, Inc. dba Knife River Materials |
| 2023-08-18 | KA30075 | IG | A | Northstar Materials, Inc. dba Knife River Materials |
| 2023-04-26 | WPYA652 | IG | A | Northstar Materials, Inc. dba Knife River Materials |
| 2022-09-27 | KGM431 | IG | A | Northstar Materials, Inc. dba Knife River Materials |
| 2004-04-01 | WXH785 | IG | E | Northstar Materials, Inc. dba Knife River Materials |
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