<P> In the United Kingdom , toll - free telephone numbers are generally known as `` freephone '' numbers ( British Telecom numbers are officially Freefone ) and begin with the prefixes 0800 , 0808 or the Cable & Wireless Freecall prefix 0500 . The most commonly used prefix is 0800 , first used in November 1985 . Additionally , numbers in the range 0808 80x xxxx are reserved for not - for - profit helplines . </P>
<P> In the United Kingdom , toll - free telephone numbers are generally known as `` freephone '' numbers ( British Telecom numbers are officially Freefone ) and begin with the prefixes 0800 , 0808 or the Cable & Wireless Freecall prefix 0500 . The most commonly used prefix is 0800 , first used in November 1985 . Additionally , numbers in the range 0808 80x xxxx are reserved for not - for - profit helplines . </P>
how to call a toll free number from uk
how to call a toll free number from uk
0800 0808 0500
0800 0808 0500