Hello,
I have a small question please.
Where can i find the rules for 084 and 087 numbers? Specifically, i'm looking to find if a business with 087 number must declare the call rates? (voice declaration when you call through the number)

Thank you, and i must say, this website and community looks great! 

Hey Ian01 thank you for the information. I actually have 3 more questions, i hope you can help me with

- are there any special requirements when using 087number? For exemple, if a company have 087 number and 084 number, are they obligate to provide some extra service with the 087 number (call recording or anything like that)?

- Do you have any idea if 09 numbers that cost 25 PPM need to have voice declaration or its the same rules like you mentioned on your last replay.

- Here in the UK there are some numbers prefixes that are blocked by default? (i think 090 numbers but im not sure).

Thank you verry much! i am new in the UK and these things are very helpful for me.

Shoniele

Aside from "adult" entertainment services being restricted to using 098 prefixes (plus the older 0908 and 0909 prefixes for pre-existing "adult" services) any service can be provided on any 084, 087, 090, 091 or 098 number. Numbers starting 118 are reserved for Directory Enquiries services.

There is no general requirement to declare the call costs at the start of the call. The general requirement is to declare the call costs next to the number wherever the number is advertised or promoted. This ensures the caller knows the cost of the call before they make the call.
http://ask.ofcom.org.uk/help/telephone/businesscalling

Some types of Controlled Premium Rate Services have a specific requirement to declare call costs at the start of the call and/or warn of elapsed call duration and/or cut off the call at a certain price cap. Those requirements are detailed in the individual rules that apply to that type of service.
http://psauthority.org.uk/for-business/special-conditions

Some providers offer a "premium rate bar" but what this covers varies from provider to provider and likely does not cover all that one might reasonably expect it to. It is likely to cover calls to numbers starting 090, 091 and 098 and may also cover calls to numbers starting 118. It problably doesn't cover calls to numbers starting 070, 084 or 087. Calls to mobile shortcodes and texts to and from mobile shortcodes are a whole other matter.