To stay connected with mobile data in Tangier, Morocco, you can buy a local SIM card from providers such as Maroc Telecom, Orange or Inwi. These are easy to find in major cities and at the airport. Before traveling, make sure your phone is unlocked to use a foreign SIM card. Prepaid data packages are affordable and suitable for various needs. Remember to bring your passport, as you will need to show identification when purchasing a SIM card.