There is no area code +1 963 in North America (USA, Canada, etc.). Other countries may have domestic area code 963.
International telephone country code +963 is Syria.
(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, and many other countries use different prefixes.)
Telephone country code +963 (dialed as 00 963 from many places) is Syria, and telephone area code +963 31 is the city of Homs.
(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.)
Syria is country code +963. Its Internet domain is .sy, with a domain in Arabic alphabet pending approval.
The country code and area code of Chicomuselo, Mexico is 52, (01)963.
The country code and area code of Alhasakah, Syria is 963, (0)52.
The country code and area code of Dara, Syria is 963, (0)15.
The country code and area code of Edleb, Syria is 963, (0)23.
The country code and area code of Lattakiah, Syria is 963, (0)41.
The country code and area code of Palmyra, Syria is 963, (0)34.
The country code and area code of Menbej, Syria is 963, (0)25.
The country code and area code of Tank, Pakistan is 92, (0)963.
The country code and area code of Al-Nebek, Syria is 963, (0)12.
The country code and area code of Al-Quneitra, Syria is 963, (0)14.
The country code and area code of Al-Rakkah, Syria is 963, (0)22.