UK geographic area codes begin +44 1 or +44 2 only.
+44 3 is used for non-geographic numbers charged at geographic rate.
The +44 34x range is reserved for transition from existing +44 84x premium rate numbers (084x in domestic format), but only 0843, 0844 and 0845 and hence 0343, 0344 and 0345 are in use so far.
A number starting with +34 7 is a mobile phone or a personal "follow-me" number from Spain.
(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 and area code of Kedainiai, Lithuania is 370, (0)347.
The country code and area code of Mirandillas, Mexico is 52, (01)347.
The country code and area code of Keneurgench, Turkmenistan is 993, (8)347.
It's a New York cell area code.
Area code 516 is Nassau County, Long Island. Area code 347 is one of the area codes for Brooklyn, Bronx, Queens, and Staten Island. There are some local calls from 516 to 347, but it is likely that at least "zone" charges will apply to other calls.
All UK area codes begin with a 0. There is no area code 6010 in the UK, and there is no 06010 code either.
The country code and area code of Bashkirskaya rep., Russian Federation is 7, (8)347.
Area code 646 is Manhattan, in an overlay with 212. Area code 347 is the other four boroughs, in an overlay with 718 and 929. Area code 917 serves all five boroughs. The charges for calls within New York City depend on your phone company and calling plan.
UK area code 020 is London.
The country code and area code of Vianen Zh, Netherlands is 31, (0)347.
There is no 01134 code in the UK.
There is no area code 20 in the UK