Editing Telephone numbering plan (section)

===Special services===
Within the system of country codes, the ITU has defined certain prefixes for special services. The ITU also assigns codes for independent international networks, such as satellite systems, spanning beyond the scope of regional authorities.

Some special international routing codes are the following:
* 388 5 – shared code for groups of nations
* 388 3 – [[European Telephony Numbering Space]] – Europe-wide services (discontinued)
* 800 – International Freephone ([[Toll-free telephone number|UIFN]])
* 808 – reserved for [[Shared Cost Service]]s
* 878 – [[Universal Personal Telecommunications]] services
* 881 – [[Global Mobile Satellite System]]
* 882 and 883 – International Networks
* 888 - international disaster relief operations
* 979 – [[International Premium Rate Service]]
* 991 – International Telecommunications Public Correspondence Service trial (ITPCS)
* 999 – reserved for future global service