How do I know if my mobile will work in the countries I am travelling to?
- Most of the world (including New Zealand) uses GSM 900 / GSM 1800.
- This means that if your phone works in New Zealand, it will work almost anywhere (some exceptions for old Telecom handsets).
- USA and the Americas
Japan and South Korea
- You will need a 3G phone that uses WCDMA
Work out which frequencies your mobile phone handset can use.
- Mobile handsets can work with any combination of four GSM frequency bands and two 3G frequency bands
- Look at the TravelSIM Country List page
- The network type will be GSM900 / GSM1800/ GSM1900 / GSM850 or some combination of these
- Japan and South Korea are WCDMA
Work out what frequencies are used by the mobile phone networks in the countries you are travelling to.
- Search Google for Make and Model specification (e.g. Nokia 6230i specification)
- See here for more info on this topic
Your phone must work on the same frequency(s) as the country(s) you will be travelling to.