A UK telephone number beginning with 0770, or +44 770 in international format, is a mobile phone.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
Republic of Ireland: +44 353, then the Irish mobile number minus any leading zero. Northern Ireland: No code needed - same as any other UK mobile number.
Replace the 0 at the beginning of the UK telephone number (landline or mobile) with 00 44. For example, 07700 900123 becomes 00 44 7700 900123.
+44
Redruth is in area code 01209. From outside the UK, this is dialled as +44 1209 (where "+" means your country's international access code)
The United Kingdom has the International Country Code of 44.
+ 44.
Northern Ireland is part of the UK, and uses the same ranges of mobile numbers. From the UK - just the full number. From the rest of the world, replace the leading zero with the country code +44 For example, 07700 900123 becomes +44 7700 900123
The three-letter country code for passports issued by the Republic of Ireland is IRL.
The conventional format is, for example, 07700 900123 for domestic use, or +44 7700 900123 for international use.It is incorrect and confusing to write, for example, +44 (0) 7700 900123.(Note: the mobile number shown is fictitious.)
The telephone country code for Jersey is +44, the same as the UK. Landlines in Jersey begin with +44 1534; mobile phones from Jersey begin with +44 7509, +44 7700, +44 7797, or +44 7829.Within the UK, Jersey, Guernsey, and the Isle of Man, you can replace the country code +44 with the trunk prefix 0, although rates to call between Jersey and the UK proper are likely to be higher than for calls within the UK.The Internet country code for Jersey is .je(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
The country code of Guernsey is 44.
Jersey is a British crown dependency, although it is not part of the United Kingdom. However, it is included in the UK's telephone country code +44.Landlines in Jersey use UK area code 01534, which is +44 1534 in international format.Mobiles in Jersey use 07509, 07700, 07797, and 07829. In international format, replace the trunk prefix 0 with country code +44.(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)