Nauru (a tiny island nation in the Pacific Ocean) is country code +674.
It is pronounced "nah-OO-roo," not "NAW-roo."
(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.)
Telephone country code +674 is the tiny Pacific island nation of Nauru. If that's not the 6745 you're looking for, please clarify the context for your question.
Leichtenstein is telephone country code +423.
It's from Chennithala, India
where is telephone country code 1816
That is not a country code.
Country code +674 is the tiny Pacific island nation of Nauru.
There is no 909 country code.
There is no telephone country code +897, nor +89, nor any other country code beginning with +89. There are no valid telephone numbers beginning with +89.
No. Nauru is a country.
Gibraltar is country code +350.
Moldova is country code +373.
Slovenia is country code +386.