Northfield, IL Area Codes
Northfield, Illinois (population 5,632) uses area codes 847 and 224.
Northfield has no telephone exchange of its own in NANPA records; it is served by the Winnetka exchange about 2.9 km away.
Carriers with Northfield numbers
13 prefixes are assigned to the Winnetka exchange: 15% mobile, 54% VoIP and cable, 31% landline.
| Carrier | Prefixes |
|---|---|
| AT&T (Illinois Bell) | 4 |
| Onvoy (Sinch) | 3 |
| Verizon Business (MCImetro) | 2 |
| AT&T Mobility | 2 |
| AT&T (Teleport) | 1 |
| Lumen (Level 3) | 1 |
Area codes used in Northfield
| Area code | Prefixes serving Northfield | Main carriers in this code |
|---|---|---|
| 847 | 8 | AT&T (Illinois Bell), AT&T Mobility, Verizon Business (MCImetro) |
| 224 | 5 | T-Mobile, AT&T Mobility, Verizon Wireless |
Northfield phone number prefixes
Numbers starting with these first six digits were originally assigned to the Winnetka exchange.
847-386AT&T (Teleport)847-441AT&T (Illinois Bell)847-446AT&T (Illinois Bell)847-501AT&T (Illinois Bell)847-716Verizon Business (MCImetro)847-784AT&T (Illinois Bell)847-881Verizon Business (MCImetro)847-999Lumen (Level 3)224-216AT&T Mobility224-255AT&T Mobility224-328Onvoy (Sinch)224-472Onvoy (Sinch)224-505Onvoy (Sinch)
Nearby cities in area code 847
- Elgin
- Waukegan
- Schaumburg
- Evanston
- Arlington Heights
- Skokie
- Palatine
- Des Plaines
- Mount Prospect
- Hoffman Estates
- Glenview
- Buffalo Grove
Questions
- What is the area code for Northfield, IL?
- Northfield uses 2 area codes: 847 and 224. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
- What time zone is Northfield in?
- Northfield is in the Central time zone.