01357 area code — Iwanai
In Japan, the area code 01357 covers Iwanai. It falls within Hokkaido. Numbers are written internationally as +81 1357.
How to call Iwanai
- From abroad
- +81 1357 XXX XXXX
- Within Japan
- 01357 XXX XXXX
- Country calling code
- +81
About the 01357 area code
When you see a number beginning +81 1357, it belongs to Iwanai: the 81 is Japan's country calling code and 1357 is the area code.
Area codes like 01357 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 Iwanai?
Iwanai uses the area code 01357, written internationally as +81 1357.
How do I call Iwanai from another country?
Dial your international access code, then +81 1357, then the local number — dropping the national leading 0.
What time is it in Iwanai?
Iwanai is in the Asia/Tokyo time zone; the live clock above shows the current local time.
Is 01357 a mobile or a landline code?
01357 is a geographic (landline) area code for Iwanai. Mobile numbers in Japan use their own separate prefixes.