'''ENUM (Electronic Numbering)''' is a protocol developed by the Internet Engineering Task Force ([[IETF]]) wherein the the Domain Name System ([[DNS]]) might be used to identify available services associated with E.164. ENUM involves the process of creating a domain name from a telephone number and resolving it to an internet address or Uniform Resource Identifier (URI) using the DNS technology and the hosting of ENUM domain names on the E.164 arpa domain.