Stratford-upon-Avon is in area code 01789, which is +44 1789 in international format.
(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.)
0121 serves the Birmingham, England area for telephone networks.
(01933) or +44 1933.
01420 is for Alton, in Hampshire.
01274 +44 1274 from overseas.
Chipping Norton, Oxfordshire.
The area code of 01702 is for the seaside resort of Southend-on-Sea.
It is (01603) or +44 1603.
It is (01433), or +44 1433 from overseas. Hope that helps! ^ - ^
There is no telephone area code 185 in Russia.
Area code 0191 is "Tyne and Wear" in the north of England, and a number beginning with 0191 3 is in Durham.
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 code 116 is not used in the US to localise a particular area and is instead used in the United Kingdom to localise a telephone number to a part of Leicester in England.