Contact Indosat: Find below customer service details of Indosat in Indonesia, including phone and address. You can reach the below contact for queries on new Indosat mobile connections, billing or cancellation, internet plans, prepaid / postpaid subscriptions, or other questions. Besides contact details the page also offers information and links on Indosat services.

Indosat Head Office
Wisma Antara Lt. 15
Jl. Medan Merdeka Selatan No. 17
Jakarta, Indonesia
Email: ics.sales@indosat.com

Indosat Customer Service
Phone: 021 5438 8888
Phone: 021 3000 3000
Phone: 021 3011 1111
Phone: 111 (Matrix) / 100 (Mentari)
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Indosat Stores
Click here to locate an Indosat store nearest to your street. You can visit a local dealer store for new mobile or internet connections, and can even pay your pending bills.

About Indosat
indosatIndosat was founded in the year 1967. It is a leading telecommunications company in Indonesia, with over 44 million subscribers. Indosat began its operations in 1969 and has its headquarters at Jakarta. The company is jointly owned by Qatar Telecom, the public and the Government of the Republic of Indonesia.

Some of Indosat’s popular products are: Indosat Mobile, IM3 (economical SMS, voice call and internet access), Indosat Internet, Mentari (prepaid card), Star One (wireless network of voice and data), Matrix (faster connection with 3G access) and Matrix BlackBerry (mobile email access).

Indosat Mobile service offers both package as well as non-package tariffs. There are daily, weekly and monthly plans. IM3 comes with economical plans designed for youths. The prepaid card permits voice call, video call and internet browsing. All Indosat cards can access to internet broadband service with daily, weekly and monthly plans that can be activated. There is also Indosat internet card which is a ready-to-use data card.

Indosat’s Mentari is a prepaid GSM cellular card that makes local and international calls easy. This card can be used all over Indonesia, and even international roaming. About StarOne, it is a wireless network of voice and data telecommunication that uses CDMA 2000 1X technology. There are daily, weekly and monthly plans with free outgoing calls and SMS to Indosat numbers.

And now if you are looking for faster connection and wider coverage, then there is Matrix that comes with a bigger SIM card capacity. Matrix network apparently covers about five continents and its features include high speed internet, mobile banking, 2G services and international roaming.  Some of the value added services include calling line identification, call forwarding, call barring, call hold, roaming, voice mailbox, SMS/MMS, social networking, mobile chatting/blogging and more.

This article has 6 comments

  1. Rita Reply

    Your service is extremely poor. Half the time we get no signal. I live in Pasir Putih Ancol. And the service here is terrible. I have lodged a complaint many times but haven’t seen results till date. My whole family is Indosat users four of us except for my daughter who has Telkomsel. And she is very satisfied. She always has signal wherever she goes!! My son is changing to Telkomsel this month. If you seriously don’t do anything. You will lose your customers. You seriously have a problem! Many of my friends and relatives are also complaining! And your customer service sucks too! Thank you. I would appreciate an answer from you.

  2. Gagan Jain Reply

    Kindly provide me with the contact no. or email address of the SUPERVISOR of INDOSAT CUSTOMER CARE. I have to lodge a serious complaint regarding my INDOSAT mobile connection. I want to mention that it was clearly denied by the representative at indosat gallery to give me the contact details of their top boss to lodge my complaint.

  3. hussain Reply

    hi sir i want to activate indosat free sms weekly but i don’t know how to activate it
    please tell me how to activate it and how much plulsa needed
    thank you

  4. Ramesh e Reply

    Dear sir,
    I have recharged 100000 pulsa on 11thJuly for internet for 30days But while using internet it was deducted from my existing balance though I have unreg the package on same day. still I am awaiting for the balance it is not updated in my no.085779103118

    Kindly do the needful and give me a contact no of a person who can assist in this regard

    Thanks & Regards
    Ramesh

  5. maddy xavier Reply

    Dear sir / mam, i lost sim card no. Now unable to recharge my sim . Can u plz advice me the code no of checking own sim card . Awaiting ur promt reply.

  6. Paul Clegg Reply

    For a month now trying to send emails has been unsuccessful with the message – ‘Your outgoing (SMTP) e-mail server has reported an internal error. If you continue to receive this message, contact your server administrator or Internet service provider (ISP)” Occasionally the emails can be sent which means the computer settings are not wrong. The error is in Indosat’s server
    Contacting Indosat office in Medan is hopeless, nobody seems to have any knowledge of the email settings.

    Also the network in the Samosir area is frequently down, or intermittent.

    Indosat’s customer service is very poor and if it wasn’t for the fact that so many contacts use my Indosat email address I would cancel my contract.

    I would appreciate some serious effort to improve the service and a contact from a person who can assist resolving these problems.

    Regards

    Paul Clegg

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