Public regulatory phone
(304) 647-4443
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 |
|---|---|---|---|---|---|
| MARTIN MARIETTA MATERIALS INC L | 0001936434 | ULS | 00236a6ea80f63d23fe0727a2efdac520d17f2aa1cb24d8706361e03aacdc31d | Authoritative identifier (100.0%) | 2026-07-31 21:18:08 |