Public regulatory phone
(314) 833-6500
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 |
|---|---|---|---|---|---|
| MGB Systems, Inc. customer_inquiries | 0030294201 | FORM499 | 834073 | Authoritative identifier (100.0%) | 2026-08-01 21:48:09 |
| MGB Systems, Inc. mitigation_contact | 0030294201 | RMD | RMD0019385 | Authoritative identifier (100.0%) | 2026-08-01 06:18:14 |