There seems to be a widespread perception that "Premium Rate Numbers" means "anything regulated by PSA", including 09, 118 and certain voice or text mobile shortcodes. Many people remain unaware that 087 is covered, albeit only above a certain call charge or rate. Likewise, that for certain types of service the prefix or price is irrelevant and that, for example, where those services operate on 084 numbers they are also covered by PSA regulation.
Sky has a premium rate call bar. It covers only 09 numbers:
https://www.sky.com/shop/terms-conditions/talk/code-of-practice/premium-numbers/In recent years, Ofcom has improved the language surrounding these services. A number of telecoms providers and service providers have some catching up to do.
Premium Rate Services are those where the charge is more than it would be to call or text an ordinary number and the called party derives some benefit, financial or otherwise, from that higher charge. This broad definition therefore potentially covers numbers starting 055, 056, 070 (for the moment), 076, 084, 087, 090, 091, 098, 118 and various mobile shortcodes.
PSA regulates only a subset of these, and they are known as Controlled Premium Rate Services (CPRS).
CPRS covers services operating on ...
- numbers starting 087 with a Service Charge of more than 7p per call or per minute,
- numbers starting 090 or 091 with a Service Charge of more than 7p per call or per minute,
- numbers starting 118 with a Service Charge of more than 7p per call or per minute,
- any other numbers where the charge for the service is more than 10p per call or per minute - thereby covering various voice shortcodes, but also potentially covering numbers starting 055, 056, 070 (for the moment) and 076,
- numbers where the charge is more than 20p per message (covering various text mobile shortcodes).
CPRS also covers some services irrespective of their price or the prefix they operate on. These include ...
- all chatlines,
- all "adult" entertainment services - thereby covering services on 098 numbers and elsewhere,
- all ICSS providers,
- all internet dialler operated services.
These services, even where operating on 084 numbers, must comply with the PSA general Code of Practice, and, in some cases, with the additional Special Conditions that apply to that particular type of service.
A comprehensive premium rate blocker would cover far more than "calls to 09 numbers", but could soon become complex. Further work from Ofcom to rationalise the National Numbering Plan would help here.
On another note, given that calls to 101 are currently 15p per call, some operators class these as premium rate and their premium rate call bar therefore blocks calls to 101. This will be solved when calls to 101 become free-to-caller in April 2020.