Olney, IL Area Codes
Olney, Illinois (population 8,347) uses area codes 618 and 730.
Carriers with Olney numbers
28 prefixes are assigned to the Olney exchange: 39% mobile, 25% VoIP and cable, 36% landline.
| Carrier | Prefixes |
|---|---|
| AT&T Mobility | 10 |
| Onvoy (Sinch) | 4 |
| Frontier | 3 |
| Nuso | 2 |
| Skyetel | 1 |
| Lumen (Level 3) | 1 |
| Mcc Network Services | 1 |
| T-Mobile | 1 |
Area codes used in Olney
| Area code | Prefixes serving Olney | Main carriers in this code |
|---|---|---|
| 618 | 16 | Frontier, AT&T (Illinois Bell), AT&T Mobility |
| 730 | 12 | AT&T Mobility, Onvoy (Sinch), AT&T (Teleport) |
Olney phone number prefixes
Numbers starting with these first six digits were originally assigned to the Olney exchange.
618-320AT&T Mobility618-354Skyetel618-388Lumen (Level 3)618-392Frontier618-393Frontier618-395Frontier618-429Mcc Network Services618-517T-Mobile618-617Onvoy (Sinch)618-730Onvoy (Sinch)618-837AT&T Mobility618-838AT&T Mobility618-839AT&T Mobility618-843AT&T Mobility618-879Nuso618-902Onvoy (Sinch)730-228Ip Horizon730-238Onvoy (Sinch)730-249AT&T Mobility730-257AT&T Mobility730-259AT&T Mobility730-268AT&T Mobility730-269Nuso730-277Wavenation730-279Bandwidth730-303AT&T Mobility730-305Peerless Network730-587Exiant Communications
Nearby cities in area code 618
- Belleville
- Carpentersville
- O'Fallon
- Granite City
- Edwardsville
- Alton
- Collinsville
- Carbondale
- East St. Louis
- Godfrey
- Marion
- Cahokia Heights
Questions
- What is the area code for Olney, IL?
- Olney uses 2 area codes: 618 and 730. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
- What time zone is Olney in?
- Olney is in the Central time zone.