What's the best prefix/code to call the US with mobile phone (AIS)?

[KhonKaenKowboy]

It used to be that 003 would get you a better rate than dialing direct....I haven't seen any ads lately, and of course that stuff changes. Assistance would be appreciated.

[hml367]

This is what I use http://www.ais.co.th/00500/en/rate_03.aspx

[Rob13]

I've been using 00500

[KhonKaenKowboy]

This is what I use http://www.ais.co.th/00500/en/rate_03.aspx

thanks for that link. I'm glad I asked, as it looks like you need to sign up in advance...jusr four keystrokes...now waiting for approval. 6 second incremental billing is cool, too.

[Torrens54]

Why don't you use "LINE" for FREE?

My wife is always on the phone to her daughter in the US and it never costs ANYTHING.

[KhonKaenKowboy]

I use Hangouts for free...but in this case didn't have my computer with me. BTW, AIS will work in Seoul, but I don't know what the rates are. My phone linked up with AIS Korea, and they sent me a message saying prepaid customers could call international...but my 18 THB credit wasn't enough to complete the call.

[joealx]

009 (CAT) 2.5 Baht a Minute for USA- mobile -7 Baht for UK

[MadMac]

Yes, 009, cheap and reasonable quality. Forget that 00500 or skype to phone, it sucks.

[THAIJAMES]

I use Hangouts for free...but in this case didn't have my computer with me. BTW, AIS will work in Seoul, but I don't know what the rates are. My phone linked up with AIS Korea, and they sent me a message saying prepaid customers could call international...but my 18 THB credit wasn't enough to complete the call.

I use Hangouts on my Android phone. All calls to the US are free.

[augustwest]

I use viber and quality is ok but it's free