What is the dialing code for France from UK?

France is telephone country code +33, and you must drop the trunk prefix 0 from the beginning of the French domestic telephone number. For example, Paris's area code 01 becomes +33 1. If you are calling on a mobile phone, just enter the number in international format, beginning with the plus symbol. The mobile network will automatically insert any needed prefix for your call, even if you later call the same number from a different country that uses a different international dialing prefix.

If you are calling on a landline phone, substitute the UK's international access prefix 00 for the plus symbol.

(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.)