https://www.reuters.com/article/us-britain-5g-telefonica/britains-o2-to-launch-5g-mobile-network-in-october-idUSKCN1UK21F >Britain's O2 mobile phone network, owned by Spain's Telefonica, said on Thursday it would launch next generation 5G services in October, and will be live in 20 towns and cities by the end of the year and in 50 by next summer.