Telephone country code 0023 is not assigned to any specific country. Country codes are typically assigned in the format of +XX, where XX is a two-digit number. The International Telecommunication Union (ITU) assigns these codes to different countries and territories for international dialing purposes. If you encounter a phone number with the country code 0023, it may be a mistake or an invalid code.
Country codes beginning with +23 are in western Africa, but you need the next digit.
Leichtenstein is telephone country code +423.
where is telephone country code 1816
That is not a country code.
Country code +57 is Colombia.
Country code 52 is Mexico.
Fiji has telephone country code +679.
Gibraltar is country code +350.
Moldova is country code +373.
Slovenia is country code +386.
Vanuatu is country code +678.
Niue is country code +683.