STS Call Center

It is for your information that STS Call Center is now globally activated. You can contact at the number given below for all your queries and concerns. This number is operational. You can now contact us through this number and all other numbers for info/query are inactivated with immediate effect all over the Pakistan.


Timings: 09:00 AM to 05:00 PM (Monday to Saturday) Lunch Break: 01:00 PM to 02:00 PM

You can also send your queries to any ONE of the following email addresses OR fax number:

Ph# : +92-21-34761617
STS Offices Addresses:

For test and test center inquiries and queries related to score reporting, and for other purposes like putting complaints or providing feedback, you may get in touch with STS™ on the following contacts:

Headquarter: (Karachi Office)

A-21, 3rd Floor, Flat F-8, Shahrah-e-Quaideen Road, Near Main Society Office, Karachi, Sindh.

Islamabad Office:

Will be display soon!

Lahore Office:

Will be display soon!

Peshawar Office:

Will be display soon!

Quetta Office:

Will be display soon!

Muzzafarabad Office:

Will be display soon!