Telephone country codes never begin with zero.
Telephone country code +21, dialed as 00 21 from many places, is an incomplete code in Africa. You need the next digit.
Telephone country code +1, dialed as 002 1 from many places, is North America (USA, Canada, etc.).
To reduce the possibility for confusion, it is best to quote an international telephone number beginning with the single plus symbol and the correct telephone country code.
(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 codes never begin with zero.
Country code +221, dialed as 00 221 from many places, is Senegal.
Country code +21, dialed as 002 21 from many places, is an incomplete code in northern Africa. You need one more digit to specify the country.
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., +221 or +218), omitting any dialing prefix.
(Theplus 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 uses0011, and many other countries use different prefixes.)
Telephone country codes never begin with zero.
Country code +211, dialed as 00 211 from many places, was assigned in 2011 for the new nation of South Sudan.
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., +211 or +64), 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 is00, but North America (USA, Canada, etc.) uses 011, Japan uses010, Australia uses0011, and many other countries use different prefixes.)
Telephone country codes never begin with zero.
Country code +82, dialed as 00 82 from many places, is South Korea. A number beginning with +82 1 is a mobile phone from South Korea; however, it is incorrect to refer to "country code +821" or "country code 00821"; the correct country code is just +82.
Country code +21, dialed as 008 21 from many places, is an incomplete code somewhere in Africa. You need one more digit to specify the country. For example, +211 is South Sudan and +216 is Tunisia.
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., +82 or +216), 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.)
0021 is not the country code for England. England uses the United Kingdom country code +44 which is dialled as 00 44 from most of Europe or 011 44 from North America.
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.