- Go to main menu of your iPhone
- Tap on the General icon
- Select the Network option
- Open Cellular Data Network
- Now enter new APN Settings
- Save all the changes that you have made.
- Reboot your iPhone.
- Name: H2O APN
- APN: att.mvno
- Proxy: 66.209.11.33
- Port: 80
- Username:
- Password:
- Server:
- MMSC: http://mmsc.cingular.com
- MMS proxy: proxy.mvno.H20Mobileweb.com
- MMS port: 80
- MCC: 310
- MNC: 410
- Authentication Type: PAP
- APN type: default,mms,supl
- APN Protocol:
- APN Roaming Protocol:
- Bearer: