Area Code Lookup
What Area Code Is Oshkosh?
Area code 920 · Wisconsin
Oshkosh uses area code 920. It is located in Wisconsin.
Area Code Serving Oshkosh
Frequently Asked Questions
What area code is Oshkosh?
Oshkosh uses area code 920. It is located in Wisconsin.
How do I call Oshkosh from outside the US?
To call Oshkosh from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-920-XXX-XXXX). The +1 is the country code for all NANPA countries.