Public regulatory phone
(630) 388-2435
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 |
|---|---|---|---|---|---|
| NICOR GAS / AGL RESOURCES L | 0002855773 | ULS | 0d09339a414060e078b2b520ca49f670829c72bd477d5f40fc1ec2e125854939 | Authoritative identifier (100.0%) | 2026-08-24 14:44:20 |