| Business | Phone |
| Service Delivery Div 1320 Arthur E Adams Dr, Columbus 43221 | (614) 752-7320 |
| Communications Dept 30 E Broad St # 3960, Columbus 43215 | (614) 752-9521 |
| Public Utilities Commission 180 E Broad St # 10, Columbus 43215 | (614) 466-4395 |
| Mineral Resources Mgmt 2045 Morse Rd # H2, Columbus 43229 | (614) 265-6893 |