The SIM card number can be determined using two methods:
Through the Ajax application: go to GSM settings (Devices → Hub → Settings → Cellular). The menu opposite the SIM card will display its number.
The functioning of the feature depends on whether the manufacturer recorded the number-related information on the SIM card
Using USSD code: go to GSM settings (Devices → Hub → Settings → Cellular) and select the SIM card. In the USSD-request field, enter the number check code (provided by your operator) and click Check Balance. After the request is executed, the SIM card number will be displayed under the Check Balance button.
United States→ Hub → Settings
→ Cellular). The menu opposite the SIM card will display its number.