[AndreA]

Originally Posted by AndreA

It's really difficoult for me to understand the mobile network from the prefix: I found that on Wikipedia: Telephone numbers in the United Kingdom - Wikipedia, the free encyclopedia

That's not so clear! For example my O2's number is an ex Virgin Mobile 07941.xxx.xxx that's so close to UM+ number 07937.xxx.xxx

Ops :P I read below the mobile list...

Crown dependencies

• Guernsey, Alderney, Sark

<table class="wikitable" style="width: auto; margin-left: 1.5em;"> <tbody><tr> <th scope="row">01481</th> <td>Fixed line</td> <td>
</td> </tr> <tr> <th scope="row">01481 832 to 01481 833</th> <td>Fixed line (Sark)</td> </tr> <tr> <th scope="row">07781</th> <td>Sure mobile phones and pagers</td> </tr> <tr> <th scope="row">07911</th> <td>Wave Telecom mobile phones</td> </tr> <tr> <th scope="row">07839</th> <td>Airtel Vodafone mobile phones</td> </tr> </tbody></table>

• Jersey

<table class="wikitable" style="width: auto; margin-left: 1.5em;"> <tbody><tr> <th scope="row">01534</th> <td>Fixed line</td> <td>53 = JE</td> </tr> <tr> <th scope="row">07797
07937</th> <td>Jersey Telecom mobile phones and pagers</td> </tr> <tr> <th scope="row">07700</th> <td>Sure mobile network</td> </tr> </tbody></table>

• Isle of Man

<table class="wikitable" style="width: auto; margin-left: 1.5em;"> <tbody><tr> <th scope="row">01624</th> <td>Fixed line</td> <td>
</td> </tr> <tr> <th scope="row">07624</th> <td>Mobile phones and paging services</td> </tr> <tr> <th scope="row">07924</th> <td>Mobile phones additional capacity
</td> </tr> </tbody></table>

On the Isle of Man, both fixed and mobile phone numbers can be dialled locally in the six-digit format.
Although calls from UK landlines to landlines in the islands are charged at the same rate as those to other UK landlines (i.e. they are not treated as international calls), calls may be excluded from calling plans offering unlimited UK fixed line calls, and some mobile operators may also charge more. Calls and SMS messages sent to island mobile numbers are not charged at the same rate as calls to UK mobile numbers