HC Deb 14 November 1938 vol 341 c497
65. Mr. Tinker

asked the Postmaster-General what percentage of telephone wires are carried underground; and what is the intention of his Department in this direction?

Major Tryon

Over 90 per cent. of the total mileage of telephone wire is already in underground cables and it is the policy of the Post Office to provide telephone service by underground wires in preference to overhead wires wherever financial considerations admit. It is necessary in some cases to use poles and wires for local distribution where the cost of underground plant would be prohibitive.