Area Code 815 Details

State : Illinois
Major City : Rockford
Timezone : Central

815 is the North American telephone area code for the state of Illinois, including the cities of Belvidere, Crystal Lake, De Kalb, Freeport, Joliet, Kankakee, Loves Park, Machesney Park, Mchenry, Rockford, Romeoville, and Woodstock.

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Prefix Primary City Company County Usage
815-200-#### La Salle, IL Paetec Communications Unknown
815-201-#### Rockford, IL Usa Mobility Wireless Winnebago Cell Number
815-202-#### Oglesby, IL New Cingular Wireless PCS Winnebago Cell Number
815-203-#### Joliet, IL Usa Mobility Wireless Will Cell Number
815-204-#### Crystal Lake, IL Usa Mobility Wireless Mchenry Cell Number
815-205-#### La Grange Park, IL Usa Mobility Wireless Cook Cell Number
815-206-#### Woodstock, IL Ameritech Illinois Mchenry Landline
815-207-#### Joliet, IL AT&T Local Will Landline
815-208-#### Fulton, IL Sprint Communications Company, L.p. Whiteside Landline
815-209-#### Rockford, IL Level 3 Communications Winnebago Landline
815-210-#### Joliet, IL New Cingular Wireless PCS Will Cell Number
815-212-#### Joliet, IL T-mobile Usa Will Landline
815-213-#### Sterling, IL United States Cellular Corp. - Illinois Whiteside Cell Number
815-214-#### Kankakee, IL Rcn Telecom Services Of Illinois Kankakee Landline
815-215-#### New Lenox, IL Globalcom-il Will Landline
815-216-#### Kankakee, IL Cellco Partnership DBA Verizon Wireless Kankakee Cell Number
815-217-#### Dekalb, IL Digital Network Access Communications Dekalb Landline
815-218-#### Rockford, IL Cellco Partnership DBA Verizon Wireless Winnebago Cell Number
815-219-#### Crystal Lake, IL United States Cellular Corp. - Illinois Unknown
815-220-#### La Salle, IL Ameritech Illinois La Salle Landline
815-221-#### Lockport, IL Teleport Communications Group - Chicago Will Landline
815-222-#### Rockford, IL Cellco Partnership DBA Verizon Wireless Winnebago Cell Number
815-223-#### La Salle, IL Ameritech Illinois La Salle Landline
815-224-#### La Salle, IL Ameritech Illinois La Salle Landline
815-225-#### Milledgeville, IL Citizens Telecom Co Illinois-frontier Citizens -il Carroll Landline
815-226-#### Rockford, IL Ameritech Illinois Winnebago Landline
815-227-#### Rockford, IL Ameritech Illinois Winnebago Landline
815-228-#### Oglesby, IL New Cingular Wireless PCS La Salle Cell Number
815-229-#### Rockford, IL Ameritech Illinois Winnebago Landline
815-230-#### Plainfield, IL Broadwing Communications Will Landline
815-231-#### Rockford, IL Ameritech Illinois Winnebago Landline
815-232-#### Freeport, IL Frontier North Stephenson Landline
815-233-#### Freeport, IL Frontier North Stephenson Landline
815-234-#### Byron, IL Frontier North Ogle Landline
815-235-#### Freeport, IL Frontier North Stephenson Landline
815-236-#### Woodstock, IL New Cingular Wireless PCS Mchenry Cell Number
815-237-#### Gardner, IL Ameritech Illinois Grundy Landline
815-238-#### Freeport, IL Cellco Partnership DBA Verizon Wireless Stephenson Cell Number
815-239-#### Pecatonica, IL Frontier North Winnebago Landline
815-240-#### Rockford, IL Charter Fiberlink - Illinois Will Cell Number
815-241-#### Northbrook, IL American Messaging (am) Cook Cell Number
815-242-#### Rockford, IL Usa Mobility Wireless Winnebago Cell Number
815-243-#### Rockford, IL United States Cellular Corp. - Illinois Winnebago Cell Number
815-244-#### Mt Carroll, IL Gallatin River Communications DBA Centurylink Carroll Landline
815-245-#### Woodstock, IL New Cingular Wireless PCS Mchenry Cell Number
815-246-#### Earlville, IL Frontier North La Salle Landline
815-247-#### Pecatonica, IL Frontier North Winnebago Landline
815-248-#### Durand, IL Frontier North Winnebago Landline
815-249-#### Grand Ridge, IL Frontier North La Salle Landline
815-250-#### La Salle, IL Comcast Phone Of Illinois DBA Comco Unknown
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