There is currently no 5g available but good 4g on all the major networks 02, Vodafone, EE, Three.
The signal is not good on many parts of the route due to the location of the phone mast which is in the village, meaning you should be prepared for not having full overage for the whole route – problem areas tend to be between Pen y Ghent summit and Ribblehead, much of Whernside and the northern side of Ingleborough, as you descend Ingleborough back to the village of Horton the signal is quite strong in parts.
At Ribblehead 3, Three and Vodafone claim to provide 4g cover but from our experience it tends to hit and miss. At The old Hill Inn there are only 2 providers who claim to have a signal which is Vodafone and EE (4g)
The best network provider according to their coverage claims is Vodafone.