+1 796 is not a valid area code in North America (USA, Canada, etc.).
Country code +252 is Somalia, but that does not appear to be a valid number. Numbers beginning with +252 3 are landlines in the area of Kisimaayo and Jaamame.
It is a mobile telephone number for the UK.
91 is the dialling code for India. So you would add plus 91 (normally not plus plus 91) to dial a mobile with an Indian number. The phone need not be in India.
No, there is no common ratio for the given number.
That's a number in Zimbabwe. Specifically a mobile number.
Thailand uses the country code +66, and you must also drop the trunk prefix 0 from the beginning of the Thai domestic telephone number. Using a mobile phone, just dial the number in international format, beginning with the plus symbol. If your mobile does not allow you to enter the plus symbol in a telephone number, or if you are calling from a landline, substitute the UK's international access prefix 00 for the plus symbol.
00 1 plus the area code and subscriber number
That's a UK number - assigned to a mobile (cell) phone
The mobile number +63 938 068 5228 indicates that it is a mobile phone number in the Philippines. The country code +63 is for the Philippines, and the number starts with 938, which typically designates a specific mobile network provider. The format follows the standard mobile numbering system in the country.
Replace the trunk prefix 0 of the Thai number (mobile or landline) with telephone country code +66, including the plus symbol.
+34 (including the plus symbol) followed by the 9-digit Spanish number
00 34 plus the full Spanish number.