To dial any number in the US (landline or mobile) from the UK, dial 00 1 followed by the area code and number.
Dial the UK mobile number exactly the same way you do when the mobile is in the UK.
To call a UK mobile from a UK landline, you always just dial the UK mobile number, exactly the same way you do when it is in the UK. The network will find the mobile automatically, and the mobile user will pay any applicable surcharges for international roaming.
there is no dialling code , just dial the number as if the person u r calling in the UK as long as he has a UK mobile number
On a GSM mobile (from any country, in any country), just replace the trunk prefix 0 of the UK number (landline, mobile, or other) with country code +44, including the plus sign. For example, the fictitious number 0151 496-0123 becomes +441514960123. From a landline, or from a non-GSM mobile, replace the plus sign with 00.
From a UK landline - 123. From a mobile 08455 19 15 23
+34 (including the plus symbol) followed by the 9-digit Spanish number
you dial the number - it starts 001
To put a UK telephone number in international format, you must replace the trunk prefix 0 at the beginning of the UK domestic number with the telephone country code +44. On a mobile phone, just dial the number in international format, beginning with +44 (including the plus symbol). On a landline phone or fax machine, substitute India's international access prefix 00 for the plus symbol. These instructions are for dialing any UK number, landline or mobile.
You can find this by looking online, and for London UK the number can be found at the Refuge site. This number is 0808 2000 247. This number is free to call from any UK landline or mobile number.
To call Spain from any GSM mobile, anywhere in the world, dial +34 and then the 9-digit Spanish number (landline or mobile).
To call Thailand from a UK landline, replace the leading 0 of the Thai telephone number with 00 66. Mobile phone numbers in Thailand begin with 08 or 09, which becomes 00 66 8 or 00 66 9. Just as in the UK, mobile prefixes are national, not specific to any part of the country.
First, you need the UK telephone number for Scotland Yard. Then just replace the leading 0 of the UK number with +44 (from a mobile phone) or 011-44 (from a landline).