How to use WTNG : describes how WTNG works, and what you will find in the pages. New users please read this first!
By Country Name : look up telephone numbering information according to the name of a country or service
By Country Code : look up telephone numbering information according to the telephone country code
Calendar : international telephone numbering changes and events listed by date
Glossary : definitions for telephone numbering words and phrases
History : a history of international country codes
Regional Services : details on telephone numbering in regions of the world (i.e. involving more than one nation)
Special Services : details on telephone numbering of special services, such as satellite telephone, freephone, special networks
What's New : what has changed in WTNG, according to updating dates
Links and Other Resources : various relevant website links