Original AC forum source
Net10 announcement pasted below
Effective March 1, 2013, your NET10 Wireless Bring Your Own Phone (BYOP™) AT&T-compatible SIM will be limited to 1.5GB of high speed data usage per 30 day period on the Unlimited plan. Any redemption made prior to March 1st will not be affected by this policy.
The NET10 30-Day Unlimited Airtime Card that you add to your phone will indicate unlimited data; however with an ATT compatible SIM (A- dark blue or B- light blue) you will only receive 1.5GB of data for that 30 day period. You can choose the T-Mobile (TMO) compatible SIM (C-pink) that was included in your package if you prefer to receive Unlimited* 4GƗ data. Please visit our website for instructions on determining if you have TMO compatible service in your area, activating the TMO SIM and transferring your telephone number.
In the event that you cannot locate your TMO SIM, NET10 Wireless will provide a onetime free replacement TMO SIM in TMO compatible areas. Please go to net10data.com or call
Please visit our net10data.com site to learn how you can save data usage by accessing Wi-Fi sites and closing applications not in use that consume data.
*Tethering is prohibited. Other restrictions and limitations apply. See Terms and Conditions of Service.