Whether these codes are one or two digits different depends on whether we are talking sets or lists (respectively) ;)

69966
69096
__^^_

I make that two digits different...

Even worse than the fact that the SMSUS "service" is woefully incomplete is that fact that it does not even help when it has the number.

In the press release that accompanied the launch of SMSUS, PhonePayPlus said "the new text message service will make it even easier for the millions of consumers that regularly enjoy phone-paid services to get information on a service BEFORE they sign up".

So try typing in the number used by one of the scammers identified by PP+ to run one of the scams identified by PP+. Will you be warned not to use the service? No! You will simply be informed blandly that the service is operated by firm "XYZ" and provided with its 087 contact number - giving the distinct impression that all is well and that you can go ahead and phone.

It is very difficult to distinguish between the gamekeeper and the poacher in this business.