(13 Jan 2025, 3:05 pm)Retro Nero wrote 4** I think wasn't used on mainstream services, I can remember a few summer services.....413 Blackpool. 421 Scarborough. And 422 Bridlington
There was a few exceptions to this rule mainly the longer distance services north of Morpeth carried 5** numbers. 4** numbers were for non transfare services into Northumberland also there was 8** numbers for independent operators and 9** for works services and Metro replacement