To constrain the use of the older analogue services and the number of lines that will need migrating, Openreach have set “stop sell” dates, which are dates after which CPs will no longer be able to obtain new supply for their customers of these analogue services. There is a national “stop sell” date of September 2023, but some exchanges will hit their “stop sell” dates earlier, as Openreach’s roll out of FTTP into exchange areas reaches 75 per cent of premises. There is a list of these exchanges on the Openreach website. Stop Sell refers not only to new provision of analogue services, but also any of the following scenarios: Working Line Take overs; Start of a stopped line; Addition of lines and channels to existing installations; Migrations; CP Transfers; Bandwidth Modify and Addition of Broadband to copper voice lines.