- 99-CF-1/5,Clifton, Karachi
- www.cttelecom.net
- 021-35867696
- 8th Floor,NIC Building,Abbasi Shaheed Road,Off Shahrah-e-Faisal, Karachi
- www.iblops.com
- 021-35683944
- 111-828-282
- F2-Q,Old P.T.C Compound,Hub River Road,S.I.T.E., Karachi
- www.iblgrp.com
- 021-32585597
- SR-10/12,Rafi Mansion,Narbharam St.,Out Ram Road,Pakistan Chowk, Karachi
- www.kwickprinters.com
- 021-32620686
- # 713,Business Avenue,Block-6,P.E.C.H.S.,Shahrah-e-Faisal, Karachi
- www.sachal.com.pk
- 021-34315180
- 8th Floor,World Trade Centre,10,Khayaban-e-Roomi,Block-5,Clifton, Karachi
- www.telecard.com.pk
- 021-38330001
- 111-222-123
- Suite #201,202,2nd Floor,Fayyaz Center,3-A,S.M.C.H.S.,Shahrah-e-Faisal, Karachi
- www.worldcall.com.pk
- 021-34387781
- 111-111-965
- Suite No.307,The Plaza,G-7,Block-9,Clifton, Karachi
- www.worldcall.pk
- 021-37060131
- 111-111-965
