Mixmobile LU and BE are national packages designed for primary use within Luxembourg or Belgium and require a registered address in the respective country. While EU regulations allow free roaming within the EU (“roam like at home”), this is subject to fair use rules. If a SIM is used mainly outside its home country for more than four months, surcharges may apply unless the user can prove stable ties to that country. Mixmobile EU Connect is built for regular cross-border use and avoids these limitations. While it includes minutes and SMS, its main use case is data—especially for devices like tablets, routers, or machines operating across multiple EU countries. The higher price reflects the flexibility and coverage it provides without the risk of roaming restrictions.

Calls from and to Zone 1 are billed per second. Calls involving any other zone are billed per minute.

An SMS is limited to 160 characters when using standard GSM-7 encoding (the most common encoding for text messages). This includes spaces, punctuation, and special characters. If your message contains characters not supported by GSM-7 (e.g., certain emojis or non-Latin characters), it will be sent using Unicode encoding (UCS-2). In this case, the character limit is reduced to 70 characters per SMS. For longer messages, SMS uses a feature called "concatenation" to split the text into multiple parts. Each part reserves characters for linking, reducing the effective limit to 153 characters per part for GSM-7 or 67 characters per part for UCS-2. For example: • A 300-character message in GSM-7 will be split into 2 parts of 153 characters and 1 part of 94 characters. • A 300-character message in UCS-2 will require 5 parts of 67 characters each. The price for sending SMS is calculated per part, so longer messages may incur higher costs.