Mobile and Mobile Broadband

Estimated Maximum Speeds

For Mobile and Mobile Broadband services:

Estimated Maximum Speed*
Download Upload
4G 70 Mbps 22 Mbps
5G 597 Mbps 50 Mbps

* Based on the estimated maximum speed customers are likely to experience on Three UK's network.

  • The above table assumes that your smart phone or mobile broadband device supports the features necessary to achieve that speed.
  • Due to the nature of internet access services provided over mobile networks and geographical, topographical, built environment and other factors affecting the variability of data speeds, the estimated maximum speeds above are not guaranteed and may not be available at all locations and within all environments.
  • Theoretical maximum 4G and 5G speeds provided are also only available where Three has upgraded the site and deployed all of our 4G/5G spectrum. Currently this is only on a limited number of our sites but will increase over time.
  • Sometimes we may need to manage internet traffic across our network to deal with exceptional or temporary congestion. For more information please visit: