0845 Planet Numbers
Our 0845 local rate service is the most competitive in the UK - All we charge is a small one off connection fee, and a service charge from just £200 per year, and NO incoming call charges. Yes, that's right - No incoming call charges to pay what-so-ever!
planet-numbers.co.uk/0845.numbers

Freephone 0800 numbers
Freephone 0800 numbers uk - driving customers to your business - cheaply!
0800numbers-uk.co.uk/

Mainstream Premium Rate Numbers
A Premium Rate recorded message service turns incoming calls into income. You are credited with revenue for every second of every call made to your Premium Rate number. Prompt payments are made every month.
mainstream.uk.net/Premium%20rate.htm

www.0845-0870.com
0870 At No Cost to You! Persons calling an 0870 number tend to be better quality prospects (since they are paying for the call at standard BT national rates), and although the number of callers will be fewer than those to an 0845 number, the sale / conversion rate will tend to be higher. Current national rate charges are 6.73p peak; 3.3p off-peak and 1.7p weekends (excl VAT).
0845-0870.com/all_about_0870_telephone_numbers.htm