No longer network service for 2G

不怕你笑話，  我的手機是'老爺'的。

我2007來美國前，Steve單身一人，他沒社交，没有手機。基本上，買這手機是給我出去時可以用。而且是預付 $25 限期90天，每90天加額時都有剩遺額加上，所以用不完。

 我的朋友和同學說用Whatapps 和Wechat。不了，我沒有smart手機。：)

Seemed everyone already has a smart phone, but I still use this old type 2G cell phone. 

Steve didn't care about a cell phone when he was single, before I moved here in 2007. Basically, this cell is for me when I was out alone or with a friend. It's prepaid $25 for 90 days and we always have balance added in when we refilled. 

My friends told me we can chat in whatsapp and wechat. Sorry I don't use a smart phone. 

最近被通知該網絡已升級，2G 設備服務將於 2016 年尾終止，須盡速更換 3G 或 4G LTE 設備以免影嚮服務。

Recently, we were informed: Due to planned network upgrades your device will no longer work on the AT&T network after December 2016. To avoid service disruption, upgrade to a 3G or 4G LTE device as soon as possible.    

噢噢，看來非得換不可了。

Oh o, we need to say goodbye to it soon.

Can anyone out there recommend a plan network?