Area code 815 is used for the following cities:
Click on any city to see time zone and surise sunset time.
- Albania - Delvine (+355-815)
- USA - Illinois - Amboy (+1-815)
- USA - Illinois - Belvidere (+1-815)
- USA - Illinois - Braidwood (+1-815)
- USA - Illinois - Byron (+1-815)
- USA - Illinois - Chatsworth (+1-815)
- USA - Illinois - Chenoa (+1-815)
- USA - Illinois - Cortland (+1-815)
- USA - Illinois - Crest Hill (+1-815)
- USA - Illinois - Crystal Lake (+1-815)
- USA - Illinois - DeKalb (+1-815)
- USA - Illinois - Dixon (+1-815)
- USA - Illinois - Earlville (+1-815)
- USA - Illinois - East Dubuque (+1-815)
- USA - Illinois - Fairbury (+1-815)
- USA - Illinois - Freeport (+1-815)
- USA - Illinois - Fulton (+1-815)
- USA - Illinois - Galena (+1-815)
- USA - Illinois - Genoa (+1-815)
- USA - Illinois - Gilman (+1-815)
- USA - Illinois - Harvard (+1-815)
- USA - Illinois - Joliet (+1-815)
- USA - Illinois - Kankakee (+1-815)
- USA - Illinois - Lanark (+1-815)
- USA - Illinois - LaSalle (+1-815)
- USA - Illinois - Lockport (+1-815)
- USA - Illinois - Loves Park (+1-815)
- USA - Illinois - Marengo (+1-815)
- USA - Illinois - Marseilles (+1-815)
- USA - Illinois - McHenry (+1-815)
- USA - Illinois - Mendota (+1-815)
- USA - Illinois - Momence (+1-815)
- USA - Illinois - Morris (+1-815)
- USA - Illinois - Morrison (+1-815)
- USA - Illinois - Mount Carroll (+1-815)
- USA - Illinois - Oglesby (+1-815)
- USA - Illinois - Ottawa (+1-815)
- USA - Illinois - Polo (+1-815)
- USA - Illinois - Pontiac (+1-815)
- USA - Illinois - Princeton (+1-815)
- USA - Illinois - Prophetstown (+1-815)
- USA - Illinois - Rochelle (+1-815)
- USA - Illinois - Rock Falls (+1-815)
- USA - Illinois - Rockford (+1-815)
- USA - Illinois - Sandwich (+1-815)
- USA - Illinois - Savanna (+1-815)
- USA - Illinois - South Beloit (+1-815)
- USA - Illinois - Spring Valley (+1-815)
- USA - Illinois - Sterling (+1-815)
- USA - Illinois - Streator (+1-815)
- USA - Illinois - Sycamore (+1-815)
- USA - Illinois - Toluca (+1-815)
- USA - Illinois - Watseka (+1-815)
- USA - Illinois - Wenona (+1-815)
- USA - Illinois - Woodstock (+1-815)