This website does have the following entries in it for the NCTS, though, at this point, I guess they’ll no longer be required.
National Car Testing Service (NCT)
- NCTS Booking Line 1890412413 – Call Instead 014135992
- 1890200670 Call Instead – 014135955 (NB: I’m told that this number may no longer work).
- Bookings (Private Cars) 1890927928 Call Instead – 014135994
- Bookings (SPSV, i.e. Taxi) 1890927927 Call Instead – 014135960