The website is called World Telephone Numbering Guide (WTNG) and it provides updated information on international telephone numbering. The site includes a country code directory, a calendar of international telephone numbering changes and events, glossary definitions related to telephone numbering, history of international country codes, details about regional services in different countries, and information about special services like satellite telephony and freephone networks. Users are urged to read the introductory section before using the site. The WTNG aims to provide comprehensive information on telephone numbering worldwide by regularly updating dates and providing links to other relevant resources.
