+1 indicates a number from the usa... however - I can't find any area code 813.
That's a UK number - assigned to a mobile (cell) phone
Country code +359 is Bulgaria, and +359 89 is a Globul mobile.
Country code +66 is Thailand, and +66 89 is a DTAC mobile.
Country code +93 is Afghanistan, and +93 705 is an AWCC mobile.
Country code +880 is Bangladesh, and +880 19 is a Banglalink mobile.
On a GSM mobile (from any country, in any country), just replace the trunk prefix 0 of the UK number (landline, mobile, or other) with country code +44, including the plus sign. For example, the fictitious number 0151 496-0123 becomes +441514960123. From a landline, or from a non-GSM mobile, replace the plus sign with 00.
Country code +234 is Nigeria, and +234 80 plus 8 more digits is a mobile number.
The country code 852 from phone number 852-942-3322, is Hong Kong.
Country code +7 is Russia and Kazakhstan, and +7 961 is a mobile in Russia.
Replace the trunk prefix 0 of the Thai number (mobile or landline) with telephone country code +66, including the plus symbol.
That appears to be a telephone number that was entered on a pocket calculator. Country code +234 is Nigeria, and a number beginning +234 80 is a mobile.
That's a mobile in the UK, except you're one digit short.