This numerical sequence serves as the international direct dialing (IDD) prefix for telephone numbers originating from the Kingdom of Saudi Arabia. When placing an international call to a landline or mobile device within Saudi Arabia, it is essential to preface the local number with this code. For example, a Saudi Arabian mobile number might be represented as +966 5XXXXXXXX.
The allocation of this specific identifier facilitates seamless communication across international borders. Its consistent application in telecommunications infrastructure enables the accurate routing of calls, contributing to both business and personal connectivity. The establishment of the current international telephone numbering plan, assigning unique codes to each country, has a significant history rooted in the growth of global telecommunications networks.