Princeton, IL Area Codes
Princeton, Illinois (population 7,674) uses area codes 815 and 779.
Carriers with Princeton numbers
11 prefixes are assigned to the Princeton exchange: 45% mobile, 9% VoIP and cable, 45% landline.
| Carrier | Prefixes |
|---|---|
| Frontier | 4 |
| Verizon Wireless | 2 |
| AT&T Mobility | 2 |
| Metropcs | 1 |
| Lumen (Level 3) | 1 |
| T-Mobile | 1 |
Area codes used in Princeton
| Area code | Prefixes serving Princeton | Main carriers in this code |
|---|---|---|
| 815 | 9 | Frontier, AT&T (Illinois Bell), Lumen (Level 3) |
| 779 | 2 | Onvoy (Sinch), AT&T Mobility, Stratus Networks |
Princeton phone number prefixes
Numbers starting with these first six digits were originally assigned to the Princeton exchange.
815-303Verizon Wireless815-719Metropcs815-866Verizon Wireless815-872Frontier815-875Frontier815-876Frontier815-878AT&T Mobility815-879Frontier815-915Lumen (Level 3)779-239AT&T Mobility779-386T-Mobile
Nearby cities in area code 815
- Joliet
- Rockford
- Plainfield
- Crystal Lake
- DeKalb
- McHenry
- New Lenox
- Lockport
- Woodstock
- Belvidere
- Homer Glen
- Loves Park
Questions
- What is the area code for Princeton, IL?
- Princeton 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 Princeton in?
- Princeton is in the Central time zone.