Telephone country codes never begin with zero.
Country code +670, dialed as 00 670 from many places, is Timor-Leste (East Timor).
Note that country code +670 was previously used by the Commonwealth of the Northern Mariana Islands, including Saipan, Tinian, and Rota, but they are now in North American area code +1 670.
Country code +7, dialed as 006 7 from many places, is Russia and Kazakhstan. However, there are no longer any valid numbers beginning with +7 0. (For example, Moscow changed from +7 095 to +7 495.)
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., +670 or +7), 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.)
Telephone country codes never begin with zero.
Country code +687, dialed as 00 687 from many places, is New Caledonia.
Country code +87, dialed as 006 87 from many places, is an incomplete code for a transnational telephone service. You need one more digit. For example, +870 is Inmarsat satellite telephones.
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., +687 or +870), 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.)
Telephone country codes never begin with zero.
Country code +677, dialed as 00 677 from many places, is the Solomon Islands in the Pacific Ocean.
Country code +7, dialed as 006 7 from many places, is Russia and Kazakhstan. A number beginning with +7 7 is from Kazakhstan.
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., +677 or +7), 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.)
Telephone country codes never begin with zero.
Country code +678, dialed as 00 678 from many places, is the Pacific island nation of Vanuatu.
Country code +7, dialed as 006 7 from many places, is Russia and Kazakhstan. A number beginning with +7 8 is probably from Russia.
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., +678 or +7), 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.)
Leichtenstein is telephone country code +423.
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.
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.