Your most ideal IDD service provider …bar none!

If you call overseas regularly, ZONE’s International Direct Dial (IDD) service – ZONE1511 is tailor-made just for you.

By combining conventional IDD protocols and cutting-edge IT technology, ZONE1511 bridges long distances anywhere in the world. Honoured as one of  Asia’s top 20 IT users in the inaugural Intelligent20 Awards and the 2004 Deloitte Technology Fast 500 Asia Pacific Awards, you can trust us to deliver you crystal-clear calls at unbeatable convenience and at the lowest rates in town.  


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International Calls (IDD)

Save up to 97% and enjoy superior value-added services and voice quality. 

Compare IDD Rates

Lowest Rates in Town!
With rates from 4.5c/min, see how we fare with other IDD providers.

Save On Mobile Bills

Reduce your local and overseas mobile phone bills by turning outgoing calls into incoming ones.

Save As You Roam

ZONE Global Dial
Frequent travellers can save up to 94% while roaming.


More Value, Greater Savings
Make the most out of these special offers.

Refer & Be Rewarded

Get Rebates & Vouchers
IDD – 5% rebate every month
Business Broadband - $100 voucher


We have come a long way - and there is much more to do. Get the information about who we are, where we have been, and where we are headed.