Contact Mobistar Customer Service

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Contacting Mobistar Customer Service Center

Contacting Mobistar Customer Service Center

Mobistar is one of the leading telecommunications companies, servicing more than 300,000 customers in Luxemburg and Belgium. The company specializes in prepaid mobile, DSL and broadband Internet for residential and business customers. If you have a question relating to your account or need general questions answered, contact the customer service department by traditional mail, by email, by phone or through social media.

Contact Info:

Phone Contact Numbers

The customer service department is open Monday through Saturday 8am to 8pm and Sunday 10am to 6:30pm, local time. The technical support department is available daily 8am to 10pm, local time.

  • Customer Service: +32 2 745 71 11
  • Mobile: 5000
  • Customer Service (Belgium): 02 745 95 00
  • Technical Support: 0800 5 95 95 or +32 4695 95 95 00

Mailing Address

Mobistar Avenue du Bourget 3 1140 Brussels

If you need to visit a local Mobistar location, visit

Official Website

Customers visiting the official Mobistar website can create a new account or sign into their existing account. After signing into your account, you can access information relating to GSM subscriptions, rechargeable SIM cards, mobile Internet, international calling plans as well as specials and promotions. If you need assistance or support prior to contacting the customer service department, we recommend visiting the Customer Resource page. This section of the website features information relating to your account, as well as company information and technical support.

Social Media

Mobistar uses social media to its advantage. Throughout the website, the company states that a dedicated team of customer service professional are available on social media to assist with customer questions and concerns. If you contact the customer service department on social media during regular business hours, you will receive a response within 30 minutes.

Customer Service Email

There was only one email address listed on the website and it linked to a customer feedback form. We sent a message asking if the hours of operation we different for international customers. According to the automated response we received, Mobistar can take up to five (5) business days to respond.

Customer Service:

Our Experience

The overall experience went well, even though we could not reach out to the customer service department by phone. The customer service team responded to our questions on social media in a timely manner and answered our questions. Did you have better luck when you contacted the customer service department? Share your thoughts with us in the comment section.

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