E164.org (http://www.e164.org/) is a public ENUM DNS service that maps regular telephone numbers into various communication services including Voice over IP protocols, IAX, SIP and H323?. Numbers are verified to prevent illicit mapping.
2 pages link to E164.org:
lib/plugin/WlugLicense.php:99: Warning: Invalid argument supplied for foreach()
lib/plugin/WlugLicense.php:111: Notice: Undefined variable: ignore_authors