Should you use an AT & T Sim card within the USA, then you certainly want to use the mobile Internet. For that, you have to enter the APN access point on your smartphone.
We want to inform you about the APN login information from AT & T here. These are as follows:
- Name: ATT Phone
• APN: Phone
• Proxy: Not set
• Port: Not set
• User Name: Not Set
• Password: Not set
• Server: Not set
• MMSC: https://mmsc.mobile.att.net
• MMS proxy: proxy.mobile.att.net
• MMS port: 80
• MCC: 310
• MNC: 410
• Authentication Type: None
• APN type: default, MMS, SUPL,
• APN protocol: IPv4
• Bearer: Unspecified
In a Android smartphone like the Samsung Galaxy S6 you can create an access point with APN data manually as follows: Instructions
You now know the APN login information from AT & T and thus can use the mobile Internet with your smartphone.
