Public regulatory phone
(616) 754-9148
Associations below come from public FCC regulatory records. Confidence describes the source relationship, not current ownership of the number.
| Company or contact | FRN | System | Source record | Confidence | Observed |
|---|---|---|---|---|---|
| High Grade Materials owner | 0004810610 | ASR | 6b15934f3b0b8fb0906dc8c0018c24429c4debbd0214a2a8c70682b478b5ab87 | Authoritative identifier (100.0%) | 2026-08-06 06:48:32 |