Just be aware that the word "channel" is not used on the air, they are all referred to as frequencies.
From the latest CAP413
https://publicapps.caa.co.uk/modalap...detail&id=6973
All six figures shall be used when identifying frequencies irrespective of
whether they are 25 kHz or 8.33 kHz spaced. Exceptionally, when the
final two digits of the frequency are both zero, only the first four digits
need be given. In technical terms an 8.33 kHz frequency is referred to
as a “channel”, however the word “channel” is not used in RTF.