Australia

Exetel
APN settings
 * username: (blank)
 * password: (blank)
 * APN name: exetel1

Crazy Johns
APN settings
 * username: (blank)
 * password: (blank)
 * APN name: purtona.net

Optus
APN settings
 * username: (blank)
 * password: (blank)
 * APN name: internet

Telstra
APN settings
 * username: (blank)
 * password: (blank)
 * APN name: telstra.internet

Three
APN settings
 * username: a
 * password: a
 * APN name: 3netaccess

Virgin
APN settings
 * username: (blank)
 * password: (blank)
 * APN name: VirginInternet

Vodafone
APN settings
 * username: (blank)
 * password: (blank)
 * APN name: vfinternet.au

Vodafone (iPad)
APN settings
 * username: (blank)
 * password: (blank)
 * APN name: vfprepaymbb