Telephone country codes never begin with zero.
Country code +46, dialed as 00 46 from many places, is Sweden.
Country code +6, dialed as 004 6 from many places, is an incomplete code somewhere in the Pacific Ocean region. For example, +65 is Singapore.
To avoid confusion, it is best to write an international telephone number in correct international format, beginning with the plus symbol and the correct telephone country code (e.g., +46 or +65), omitting any dialing prefix.
(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.)
The telephone country code for Argentina is +54. The area code for Bahia Blanca is 0291, or +54 291 in international format.
The telephone country code for Argentina is +54. The area code for Chascomus is 02241, or +54 2241 in international format.
The telephone country code for Argentina is +54. The area code for Formosa is 03717, or +54 3717 in international format.
Dial ## * Your area code ** # the number you are trying to reach
The telephone country code for Argentina is +54. The area code for Carlos Spegazzini is 02274, or +54 2274 in international format.
Leichtenstein is telephone country code +423.
where is telephone country code 1816
That is not a 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.
Angola is country code +244.
Mozambique is country code +258.
Niue is country code +683.