calling telephone numbers

[Anonymous]

Hello, I know that there are some numbers, that if you call them you will be charged, numbers starting with 084 and such like, I would like to know if you phone another mobile number starting with 07, a uk number, are u charged for this, 

[Anonymous]

If you have free minutes included in your allowances or contract then you shouldn't be charged but if you don't have inclusive minutes then you can get charged or credit taken

[MI5 · Accepted solution]

Some 07 numbers are charged but standard 07 mobile numbers aren't.
See here for full details of all special numbers
http://www.o2.co.uk/help/account-and-billing/other-numbers-and-charges

[jonsie]

Also be careful that you aren't calling a Channel Isles number too but most of these types of numbers come with a prewarning when dialling.