Country code +82 is South Korea. Area code +82 70 is for VoIP numbers.
(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.)
North American area code +1 827 is unassigned. Country code +82 is South Korea, and a number beginning +82 70 is for VoIP.
Telephone country code +82 is South Korea, and a number beginning with +82 1 is a mobile phone from Korea. However, it is incorrect to refer to "country code +821"; the correct country code is just +82.(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.)
An international telephone number beginning with +82 10 is a mobile in South Korea. US postal ZIP Code 82108 is unassigned.
invalid codeCountry code +82 is South Korea, but no valid numbers begin with +82 0.
The country code and area code of Dinant, Belgium is 32, (0)82.
The country code and area code of KaposvÌÁr, Hungary is 36, (06)82.
The country code and area code of Haraua, Libya is 218, (0)82.
The country code and area code of Sarawak, Malaysia is 60, (0)82.
The country code and area code of Rapti, Nepal is 977, (0)82.
The country code and area code of Aba, Nigeria is 234, (0)82.
The country code and area code of Chelm, Poland is 48, (0)82.
The telephone country code for South Korea is +82, and you must also drop the trunk prefix 0 from the South Korean domestic telephone number, so a mobile number beginning with 01 changes to +82 1. Most mobile phones will allow you to enter telephone numbers in international format, beginning with the plus symbol.