IDD v019 Calling Guide
Call overseas with IDD v019
Last updated on 25 Aug 2026
Before you call
- Check your plan
If your mobile plan includes IDD v019 minutes, calls to included destinations are free within your available IDD v019 balance. - Check the destination
IDD v019 minutes apply only to included destinations. Check the destination list below and confirm the country code before you call. - Check the rates for non-included calls
Calls to destinations not included in your plan, or calls made after your IDD v019 minutes are used up, will be charged at the applicable IDD v019 rates.
Check if your plan includes IDD v019 and view your balance
- Log in to your Zero1 account.
- Go to Mobile Plan Usage in your Zero1 account, or open the Usage tab in the app.
- Look for IDD v019 to confirm it is included in your plan and view your available minutes.
How to make an IDD v019 call
Dial Mobile Number
Example: calling an India mobile number
Dial Landline
Example: calling a landline number in Malaysia
Included IDD 019 Destinations
Do ensure that your IDD call is made with the 019 prefix. Any calls made using + with the country code or with 001 will be chargeable at prevailing IDD rates.
| Destination | Country Code |
|---|---|
| Australia (excludes Australian-Antartica) | 61 |
| Bangladesh | 880 |
| Brunei | 673 |
| Canada | 1 |
| China | 86 |
| Hong Kong | 852 |
| India | 91 |
| Indonesia | 62 |
| Malaysia | 60 |
| New Zealand | 64 |
| Philippines | 63 |
| South Korea | 82 |
| Taiwan | 886 |
| Thailand | 66 |
| United States | 1 |
| Vietnam | 84 |
Zero1 Customer Service Centre
You can also buy our mobile plans at our Zero1 Customer Service Centre. Do bring along your ID when you like to purchase the plan on-site.
Zero1 Customer Service Centre
25 Harper Road
#01-06 Harper Point
Singapore 369683
(Near Circle Line Tai Seng MRT Station, Exit B
Near 70281 aft Tai Seng Stn bus station)
Mondays to Fridays
09:30 am to 05:30 pm
Saturdays
10:00 am to 05:30 pm
Sundays
09:00 am to 05:30 pm
Closed on Public Holidays
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More information
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Zero1 is a licensed Mobile Virtual Network Operator (MVNO) that provides a number of mobile plans with all your connectivity needs. Do check out our other offerings on the Zero1 website today.
