050 (or +233 50) is a mobile code in Ghana.
050 (or +232 50) is a mobile code in Sierra Leone.
(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.)
That would be the famous African country called "Atlanta, Georgia, USA."
The USA uses country code +1
There is no country code +601. However, +60 is the code for Malaysia, and mobile numbers in Malaysia always begin with the digit 1.
If the Dubai mobile has international roaming, it can be called by dialing the UAE number, country code +971. If you want to reach that phone by dialing a UK number, you may be able to swap in a UK SIM card.
Country code +974 is Qatar, in the Persian Gulf.
Country code +971 is the United Arab Emirates, and a number beginning with +971 5 is a mobile.
Country code +43 is Austria.
Country code +90 is Turkey.
Malaysian dialing code 011-12 (or internationally +60 1112) is a Maxis mobile phone.
00 isn't part of the country code, it is a commonly used international access prefix. Country code +91 is India, and +91 9269 is a mobile phone in Rajasthan.
Dial the UK mobile number in full international format: replace the trunk prefix 0 with telephone country code +44 (including the plus symbol).
Country code +358 is Finland.