Alternatives for AT command for windows 8.1 to read SIM LAC

Product : Sierra wireless Airwatch with Dell lattitud E7440.
Im using windows7 so far to read MNC, MCC, LAC and CID using AT commands to get location of Cell tower, it works very well in my application.

Now moving to windows 8.1, the modems icons are not displayed in device manager and I was not able to get the port to use AT commands. I tried with MBN interface, but its only providing MNC and MCC. Could not find LAC and CID. Now got stuck.
Need guidance on how to get LAC and CID in windows 8 for my program written in C#.

Manoharan R

what module are you using?? are you using Aircard watcher??