Telephone country code +61 is Australia, and numbers beginning with +61 4 are mobiles. However, it is incorrect to refer to "country code +614"; the correct country code is just +61.
(The plus signmeans "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.)
+61 is the telephone country code for Australia, and +61 4 is the start of a mobile number (04 in domestic format). There should be 8 more digits following.
Leichtenstein is telephone country code +423.
The country code and area code of Abu Zabad, Sudan is 249, (0)614.
where is telephone country code 1816
That is not a country code.
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.
+614 is not an international dialing code in active use. It's possible that it was a +61 number, in which case, it would be Australia.
Gibraltar is country code +350.
Moldova is country code +373.
Slovenia is country code +386.
Togo is country code +228.