Marengo, IL Area Codes
Marengo, Illinois (population 7,737) uses area codes 779 and 815.
Carriers with Marengo numbers
6 prefixes are assigned to the Marengo exchange: 0% mobile, 50% VoIP and cable, 50% landline.
| Carrier | Prefixes |
|---|---|
| Bandwidth | 2 |
| Ton80 Communications | 1 |
| AT&T (Illinois Bell) | 1 |
| Lumen (Level 3) | 1 |
| At&T Enterprises | 1 |
Area codes used in Marengo
| Area code | Prefixes serving Marengo | Main carriers in this code |
|---|---|---|
| 779 | 3 | Onvoy (Sinch), AT&T Mobility, Stratus Networks |
| 815 | 3 | Frontier, AT&T (Illinois Bell), Lumen (Level 3) |
Marengo phone number prefixes
Numbers starting with these first six digits were originally assigned to the Marengo exchange.
779-548Bandwidth779-901Bandwidth779-927Ton80 Communications815-568AT&T (Illinois Bell)815-572Lumen (Level 3)815-596At&T Enterprises
Nearby cities in area code 779
- Joliet
- Rockford
- Plainfield
- Crystal Lake
- DeKalb
- McHenry
- New Lenox
- Lockport
- Woodstock
- Belvidere
- Homer Glen
- Loves Park
Questions
- What is the area code for Marengo, IL?
- Marengo uses 2 area codes: 779 and 815. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
- What time zone is Marengo in?
- Marengo is in the Central time zone.