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Coronavirus: Government using mobile location data to Mar 19, 2020 Sky Mobile vs O2: key differences between the 4G/5G networks While O2 are owned by a company called Telefonica. Sky Mobile have always used O2's network and have just signed a long-term deal to use them in future too. Sky Mobile customers get full access to identical 4G, 3G and 2G coverage to being on O2 directly. So if you've been with O2 before, you shouldn't notice a diffference swapping to Sky Mobile. O2: We've found Huawei of not using you-know-who's kit in Jul 25, 2019 O2 to launch 5G network in UK in October - BBC News

BT and O2 today announced a new five year, multi-million pound managed services agreement that will see BT Wholesale consolidate O2’s mobile and fixed core networks in the UK into one cost-effective network using BT’s 21st Century Network (21CN) platform.

Dec 07, 2018 UK mobile networks hit by outage The first signs of trouble arrived at around 10am on 17 March, when the UK network monitoring website DownDetector reported issues among users of all of the leading services – Three UK, O2, EE 5G Clean Networks - United States Department of State

Head to an O2 WiFi hotspot (see below) and open up the WiFi menu on your chosen device, and scan for available WiFi networks. A network called ‘O2 Wifi’ should pop up in the list.

DenseAir and technology partner Airspan Networks allowing the validation of future CAV use cases. O2’s neutral host network will support collaboration on trials and tests. Compare UK Mobile Network Coverage. In the UK, there are currently more than 30 different mobile networks to choose from. Only four companies, however, hold a license to build and maintain their own mobile phone masts (EE, O2, Three and Vodafone). It also lets you use WhatsApp, Facebook Messenger and Twitter without it coming out of your data allowance, and offers Wi-Fi Calling. Plus, if you’re a Virgin TV or broadband customer then you’ll also have the option of a plan with unlimited data, which is something not all networks offer. If you pay for more than you use but you’re wary of opting for less data in case you go over your limit, a data rollover plan might be a good solution for you.