Plainfield, IL Area Codes
Plainfield, Illinois (population 50,043) uses area codes 815 and 779.
Carriers with Plainfield numbers
21 prefixes are assigned to the Plainfield exchange: 10% mobile, 52% VoIP and cable, 38% landline.
| Carrier | Prefixes |
|---|---|
| AT&T (Illinois Bell) | 6 |
| Lumen (Level 3) | 5 |
| T-Mobile | 2 |
| Bandwidth | 2 |
| Verizon Business (MCImetro) | 1 |
| First Communications | 1 |
| Rcn Telecom Services Of Illinios | 1 |
| Onvoy (Sinch) | 1 |
Area codes used in Plainfield
| Area code | Prefixes serving Plainfield | Main carriers in this code |
|---|---|---|
| 815 | 15 | Frontier, AT&T (Illinois Bell), Lumen (Level 3) |
| 779 | 6 | Onvoy (Sinch), AT&T Mobility, Stratus Networks |
Plainfield phone number prefixes
Numbers starting with these first six digits were originally assigned to the Plainfield exchange.
815-230Lumen (Level 3)815-254AT&T (Illinois Bell)815-267Verizon Business (MCImetro)815-327Lumen (Level 3)815-436AT&T (Illinois Bell)815-439AT&T (Illinois Bell)815-487First Communications815-556Lumen (Level 3)815-577AT&T (Illinois Bell)815-609AT&T (Illinois Bell)815-676Lumen (Level 3)815-731AT&T (Illinois Bell)815-733Rcn Telecom Services Of Illinios815-779T-Mobile815-782Lumen (Level 3)779-234Bandwidth779-252Onvoy (Sinch)779-263AT&T (Teleport)779-303Telnyx779-358Bandwidth779-436T-Mobile
Nearby cities in area code 815
- Joliet
- Rockford
- Crystal Lake
- DeKalb
- McHenry
- New Lenox
- Lockport
- Woodstock
- Belvidere
- Homer Glen
- Loves Park
- Kankakee
Questions
- What is the area code for Plainfield, IL?
- Plainfield uses 2 area codes: 815 and 779. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
- What time zone is Plainfield in?
- Plainfield is in the Central time zone.