Telnic.org is the hub of the .tel community and the registry for .tel domains.
This page is a work-in-progress centralizing information about portability of information stored in .tel domains.
A .tel domain is primarily a data Visitor in the sense that its main purpose is to be the central hub for all your communication channels, pointing at all the resources that you use to communicate, be they phone numbers, email addresses or blogs.
A .tel domain does not broadcast updates: its data is served by DNS servers which behave as on-demand "pull" repositories.
Whatever registrars .tel domains are purchased from, they can be accessed via common read and write APIs. These APIs provide Delegated Access, Personal Backup and Public Data.
.tel domain zone files are normally deleted along with their associated data when the ownership lapses and/or changes hands.
Reading .tel information is achieved through DNS queries for NAPTR, TXT, NINFO, LOC and other record types on the relevant .tel domain. The anatomy of a .tel domain is described in the Developers Manual for .tel Client Applications.