0166 area code — Asahikawa
In Japan, the area code 0166 covers Asahikawa. It falls within Hokkaido. Numbers are written internationally as +81 166.
How to call Asahikawa
- From abroad
- +81 166 XXX XXXX
- Within Japan
- 0166 XXX XXXX
- Country calling code
- +81
About the 0166 area code
When you see a number beginning +81 166, it belongs to Asahikawa: the 81 is Japan's country calling code and 166 is the area code.
Area codes like 0166 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 Asahikawa?
Asahikawa uses the area code 0166, written internationally as +81 166.
How do I call Asahikawa from another country?
Dial your international access code, then +81 166, then the local number — dropping the national leading 0.
What time is it in Asahikawa?
Asahikawa is in the Asia/Tokyo time zone; the live clock above shows the current local time.
Is 0166 a mobile or a landline code?
0166 is a geographic (landline) area code for Asahikawa. Mobile numbers in Japan use their own separate prefixes.