Public regulatory phone
(312) 653-5973
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 |
|---|---|---|---|---|---|
| BLUE CROSS BLUE SHIELD OF ILLINOIS L | ULS | 02f9c604e02e5ae697cb52f0c63eb584d8c93774f3adfe038423063b43421241 | Authoritative identifier (100.0%) | 2026-08-05 12:18:30 |