I have just looked it up; it 60p a minute
Rednose
Numbers starting 0906603 and 0906611
Special Services, open ended time dependent charge or fixed fee up to ?1.50 for BT customers
Section: The Premium Rate Services Range (Convention B9)
Operator: ntl Group Ltd
A table of the code allocations for numbers in The Premium Rate Services Range (Convention B9) starting 0906 is available
Oftel records show that these number groups are allocated (operator unknown) until 60ppm. Note that due to number portability if an individual number has moved to a different operator this information is not publically available. Notes: Special Services, open ended time dependent charge or fixed fee up to ?1.50 for BT customers. Oftel's last recorded change for this number range was in 10 Digit Numbers.
BT charge for calls to this code at their p7 rate (Calls to Premium Rate Services). It is 51.063p per minute (ex VAT), or approximately 60p per minute (inc VAT) at all times.
Notes:
* BT prices are given for calls from Residential and Business lines.
* Calls which are charged according to their duration are measured to a fraction of a second, the price rounded down to the nearest 0.1p and subject to a minimum charge of 4.2p.
* Any applicable discounts (for option schemes, Friends & Family etc.) and limited period special offers should then be applied and then VAT added.
* The prices quoted are those generally applicable as from 20 Dec 2000 with pricing for some number ranges effective at various dates upto 17 Dec 2002 according to Section 2 (Parts: 1 and 10) of the version of the BT Price List available on the Web - with changes last noted 20 Dec 2002 .
For other information on call charges see UK Telephone Tariff Comparisons