0280 area code — Koga
In Japan, the area code 0280 covers Koga. It falls within Ibaraki. Numbers are written internationally as +81 280.
How to call Koga
- From abroad
- +81 280 XXX XXXX
- Within Japan
- 0280 XXX XXXX
- Country calling code
- +81
About the 0280 area code
When you see a number beginning +81 280, it belongs to Koga: the 81 is Japan's country calling code and 280 is the area code.
Area codes like 0280 tie a phone number to a place — useful for knowing where a call or message originates, and for signing up to services that expect a local Japan number. To actually receive an SMS on a Japan number, a temporary or virtual line does the job without exposing your own SIM.
Frequently asked questions
What area code is Koga?
Koga uses the area code 0280, written internationally as +81 280.
How do I call Koga from another country?
Dial your international access code, then +81 280, then the local number — dropping the national leading 0.
What time is it in Koga?
Koga is in the Asia/Tokyo time zone; the live clock above shows the current local time.
Is 0280 a mobile or a landline code?
0280 is a geographic (landline) area code for Koga. Mobile numbers in Japan use their own separate prefixes.