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New Contributor
September 29, 2025
Question

London underground wifi

  • September 29, 2025
  • 12 replies
  • 1451 views

Every-time i try to log into Three WiFi  on London underground, I always get a message “ Please Insert a valid USIM card? Any help would be appreciated 

    12 replies

    New Contributor
    August 14, 2026

    Gemma,

    So there is no way you can use WiFi on the underground from the three or Vodafone network? Thank you 

    iD Mobile Employee
    August 17, 2026

    Hi ​@VeraIv.

     

    Thank you for your post. 

     

    Just to clarify, iD Mobile customers can’t access the station Wi-Fi networks (like THREE_WIFI) that Three or Vodafone offer on the London Underground. Even though we use Three’s network, that Wi-Fi perk doesn’t extend to MVNO customers like ours.

     

    The good news is, your iD Mobile SIM will automatically connect to 4G and 5G mobile data in the underground stations and tunnels where coverage is available.

     

    Hope that clears things up.

     

    Thanks,

    Marquerita

    The iD Mobile Team

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