Country codes beginning with +35 (dialed from many countries as 00 35 or 011 35) refer to a number of countries in Europe. To narrow it down to one specific country, you would need the next digit.
(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.)
The telephone country code for Zimbabwe is +263. The area code for Mashava is 035, or +263 35 in international format.
Leichtenstein is telephone country code +423.
where is telephone country code 1816
That is not a country code.
The telephone country code for Ghana is +233. The area code for Brong Ahafo province is 035, or +233 35 in international format. The local number is always 7 digits.
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.
Gibraltar is country code +350.
Moldova is country code +373.
Slovenia is country code +386.
Togo is country code +228.
Liberia is country code +231.