031 area code — Surabaya
Phone numbers in Surabaya, Indonesia use the area code 031. Numbers are written internationally as +62 31.
* Indonesia spans more than one time zone; the clock shows its primary zone.
How to call Surabaya
- From abroad
- +62 31 XXX XXXX
- Within Indonesia
- 031 XXX XXXX
- Country calling code
- +62
About the 031 area code
Locally the code appears as 031; from outside Indonesia you replace the leading 0 with +62 31.
Area codes like 031 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 Indonesia number. To actually receive an SMS on a Indonesia number, a temporary or virtual line does the job without exposing your own SIM.
Frequently asked questions
What area code is Surabaya?
Surabaya uses the area code 031, written internationally as +62 31.
How do I call Surabaya from another country?
Dial your international access code, then +62 31, then the local number — dropping the national leading 0.
What time is it in Surabaya?
Surabaya is in the Asia/Jakarta time zone; the live clock above shows the current local time.
Is 031 a mobile or a landline code?
031 is a geographic (landline) area code for Surabaya. Mobile numbers in Indonesia use their own separate prefixes.