Which city of Saudi Arabia has 63 phone code?

Answer 1

Saudi Arabia uses telephone country code +966. Saudi area code 06, which is +966 6 in international format, is for landlines in Al-Qassim, Buraidah, Majma, and Hail provinces. Local numbers have 7 further digits.

(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.)