Wilmington, IL Area Codes
Wilmington, Illinois (population 5,614) uses area codes 779 and 815.
Carriers with Wilmington numbers
5 prefixes are assigned to the Wilmington exchange: 0% mobile, 60% VoIP and cable, 40% landline.
| Carrier | Prefixes |
|---|---|
| AT&T (Teleport) | 1 |
| Bandwidth | 1 |
| At&T Enterprises | 1 |
| AT&T (Illinois Bell) | 1 |
| Lumen (Level 3) | 1 |
Area codes used in Wilmington
| Area code | Prefixes serving Wilmington | Main carriers in this code |
|---|---|---|
| 779 | 3 | Onvoy (Sinch), AT&T Mobility, Stratus Networks |
| 815 | 2 | Frontier, AT&T (Illinois Bell), Lumen (Level 3) |
Wilmington phone number prefixes
Numbers starting with these first six digits were originally assigned to the Wilmington exchange.
779-232AT&T (Teleport)779-257Bandwidth779-429At&T Enterprises815-476AT&T (Illinois Bell)815-926Lumen (Level 3)
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 Wilmington, IL?
- Wilmington 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 Wilmington in?
- Wilmington is in the Central time zone.