***CALL CENTER TELKOMSEL***
>> CS Kartu Halo : 111
>> CS Simpati & Kartu AS : 116
>> Cek Pulsa Kartu Halo : HC ON Ke 333
>> CEK PULSA Simpati & Kartu As : *888#
>> Cek Pemakaian terakhir : *887#
>> Cek Bonus : *889#
>> Email : cs@telkomsel.co.id
***CALL CENTER INDOSAT***
>> CS Mentari : 222
>> CS IM3 : 300 (free) / 100 (400/call)
>> CS Starone : 111
>> Cek Pulsa
== Mentari : *555#
== IM3 : *388#
== Starone : *555#
== Mentari : *555#
== IM3 : *388#
== Starone : *555#
>> Email : icare@indosat.com , customer_service@indosat.com
***CALL CENTER XL***
>> CS XL : 817 (350/call)
>> CS Xplor : 817 (free)
>> Cek Pulsa : *123#
>> Cek Limit Xplor : *108#
>> Email : customerservice@xl.co.id
***CALL CENTER ESIA***
>> CS Esia : *999
>> Cek Pulsa : *555#
***CALL CENTER FLEXI***
>> CS Flexi : 147
>> Cek Pulsa : *99 atau *99#
***CALL CENTER FREN***
>> CS Fren : 888
>> Cek Pulsa : 9999
***CALL CENTER SMART***
>> CS Smart : 881, 088-11-22-33-44 (bebas pulsa dari nomer smart anda)
>> Email : customercare@smart-telecom.co.id
***CALL CENTER THREE***
>> CS Three : 123 dan 0896-4-4000-123 dari operator lainnya
>> Cek pulsa *111*1#
>> Email : 3care@three.co.id
***CALL CENTER AXIS***
>> CS Axis : 838
>> Cek Pulsa : *888#
>> Email : cs@axisworld.co.id
