Country codes never begin with zero, so if your international access prefix is 00 (the most commonly used prefix), then you're asking about country code +01, which does not exist.
If your international access prefix is 000, then you're asking about country code +1, which is North America (USA, Canada, and some Caribbean/nearby islands).
Hexidecimal
00 1
The calling code +143 is associated with the United States and specifically refers to the area code for the state of New York. However, it's important to note that country calling codes typically start with a "+" sign followed by the country code, and "00" is often used as a prefix for international dialing in various countries. Therefore, the combination "00 143" might not correspond to a standard international dialing format.
natwest
This is an invalid sort code. It does not exist. No sort code begins with "00". The minimum the first two digits can be is "01".
The UK is country code +44; from Turkey, dial 00 44.
To call Germany from another country, dial +49 then the German area code and telephone number. Replace the + with 00 if calling from Europe, 011 if calling from US or Canada, etc.
'00' is not part of the country code, it is a commonly used international access prefix. Country code +880 is Bangladesh, and +880 19 is a Banglalink mobile.
France's international access code is 00 Ireland's country code is 353 So you dial 00 353, then the Irish number minus its leading zero.
Bristol
City of London
International country code for South Korea is +82. Replace + with 011 if calling from US/Canada Replace + with 00 if calling from Europe.