SingTel:
Telephone No: *99#
APN = internet
username = <leave blank>
password = <leave blank>
(OR)
username = 65IDEAS
password = ideas


M1:
Telephone No: *99#
APN = sunsurf
username = <leave blank>
password = <leave blank>


StarHub:
Telephone No: *99#
APN = shwapint
username = <leave blank>
password = <leave blank>