Phone Code Genius .com

Dialing telephone calls from Vietnam to Singapore

00
65
XXXX-XXXX

Step-by-step

00
This IDD (International Direct Dial) prefix tells the phone system in Vietnam that you are dialing an international number.
65
Country code for Singapore.
There are no area/city codes in Singapore.
XXXX-XXXX
All local telephone numbers in Singapore are 8 digits long.

Notes