you dial the number - it starts 001
It depends on the country you're in. Here in the UK, mobile (and most land-line) numbers consist of 11 digits.
You can get it from: 02, Vodafone, Orange, Tesco Mobile
There are a number of 'directory enquiry' companies in the UK - However, some will not release mobile numbers even if you have other information about a person. Some like to keep their mobile number private.
The last time I looked AT&T do not handle the iPhone service in the UK. If you see the people at the local mobile 'phone shop they will know more
Just dial the UK mobile number. It does not matter that the mobile is roaming in Ireland (or anywhere else); the network will automatically locate the mobile, and the roaming mobile user will pay any applicable roaming surcharges.
911 in the USA. 112 or 999 in the UK.
To dial any number in the US (landline or mobile) from the UK, dial 00 1 followed by the area code and number.
You don't need to add a country code, simply dial the number as you always do. When calling from a land line, you can dial 0844 988 6878 in front of your call. Now you only pay 3p/min! (source: cheapcalls.co.uk/to/united-kingdom)
Three Mobile Phone is the UK's fastest growing mobile network. It carries the Apple and iPhone, which are two very popular phones, in the United Kingdom, and in the United States
Drop the trunk prefix 0 from the beginning of the UK number (landline or mobile) and replace it with the international access prefix 00 plus the country code 44. For example, mobile number 07700 900123 becomes 00 44 7700 900123. If you're calling on a GSM mobile, use +44 (including the plus sign) in place of 00 44.
Dial the UK mobile number exactly the same way you do when the mobile is in the UK.
You would dial 0091 (the international code for India) followed by the mobile number. In any country - mobile numbers aren't tied to one particular area - so as long as you dial the country code - you'll be connected.