Area Code 815

General Information
Country United States
State/Province Illinois
Major City Rockford
Time Zone Central (UTC-06:00)
Current Local Time 08:46

Area Code Prefixes

Prefix County Primary City
815-200 La Salle La Salle
815-201 Winnebago Rockford
815-202 La Salle Oglesby
815-203 Will Joliet
815-204 Mchenry Crystal Lake
815-205 Cook Brookfield
815-206 Mchenry Woodstock
815-207 Will Joliet
815-208 Whiteside Fulton
815-209 Winnebago Rockford
815-210 Will Joliet
815-212 Will Joliet
815-213 Whiteside Sterling
815-214 Kankakee Kankakee
815-215 Will New Lenox
815-216 Kankakee Bradley
815-217 Dekalb Dekalb
815-218 Winnebago Rockford
815-219 Mchenry Crystal Lake
815-220 La Salle La Salle
815-221 Will Romeoville
815-222 Winnebago Rockford
815-223 La Salle La Salle
815-224 La Salle La Salle
815-225 Carroll Milledgeville
815-226 Winnebago Rockford
815-227 Winnebago Rockford
815-228 La Salle Oglesby
815-229 Winnebago Rockford
815-230 Will Plainfield
815-231 Winnebago Rockford
815-232 Stephenson Freeport
815-233 Stephenson Freeport
815-234 Ogle Byron
815-235 Stephenson Freeport
815-236 Mchenry Woodstock
815-237 Grundy Gardner
815-238 Stephenson Freeport
815-239 Winnebago Pecatonica
815-240 Winnebago Rockford
815-241 Cook Glenview
815-242 Winnebago Rockford
815-243 Winnebago Rockford
815-244 Carroll Mount Carroll
815-245 Mchenry Woodstock
815-246 La Salle Earlville
815-247 Stephenson German Valley
815-248 Winnebago Durand
815-249 La Salle Grand Ridge
815-250 La Salle La Salle

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