Lake Forest, IL Area Codes
Lake Forest, Illinois (population 19,731) uses area codes 847 and 224.
Carriers with Lake Forest numbers
27 prefixes are assigned to the Lake Forest exchange: 11% mobile, 37% VoIP and cable, 52% landline.
| Carrier | Prefixes |
|---|---|
| AT&T (Illinois Bell) | 13 |
| AT&T (Teleport) | 5 |
| T-Mobile | 3 |
| Lumen (Level 3) | 2 |
| Onvoy (Sinch) | 1 |
| Verizon Business (MCImetro) | 1 |
| Bandwidth | 1 |
| Ton80 Communications | 1 |
Area codes used in Lake Forest
| Area code | Prefixes serving Lake Forest | Main carriers in this code |
|---|---|---|
| 847 | 16 | AT&T (Illinois Bell), AT&T Mobility, Verizon Business (MCImetro) |
| 224 | 11 | T-Mobile, AT&T Mobility, Verizon Wireless |
Lake Forest phone number prefixes
Numbers starting with these first six digits were originally assigned to the Lake Forest exchange.
847-219T-Mobile847-234AT&T (Illinois Bell)847-235AT&T (Teleport)847-283AT&T (Illinois Bell)847-295AT&T (Illinois Bell)847-457AT&T (Teleport)847-482AT&T (Illinois Bell)847-500Onvoy (Sinch)847-535AT&T (Illinois Bell)847-574Lumen (Level 3)847-582AT&T (Illinois Bell)847-604AT&T (Illinois Bell)847-615AT&T (Illinois Bell)847-735AT&T (Illinois Bell)847-739Verizon Business (MCImetro)847-810Lumen (Level 3)224-212AT&T (Illinois Bell)224-271AT&T (Teleport)224-317AT&T (Teleport)224-332AT&T (Teleport)224-436T-Mobile224-516T-Mobile224-544AT&T (Illinois Bell)224-552AT&T (Illinois Bell)224-706Bandwidth224-768Ton80 Communications224-880AT&T (Illinois Bell)
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 Lake Forest, IL?
- Lake Forest 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 Lake Forest in?
- Lake Forest is in the Central time zone.