Where is the calling code 00 143 calling from?

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.