List of Usenet public managed hierarchies

If you know a hierarchy which is not listed in these pages or if you have more up-to-date information about an existing hierarchy, please send a mail to or post to news.admin.hierarchies so that these pages can be updated.

A public managed hierarchy is a publically available hierarchy for which someone maintains the canonical list of its newsgroups.

PGP-managed hierarchies

Other managed hierarchies

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You can display information about up to 30 hierarchies in the row by loading a web page of the form:,HUMANITIES,MISC,NEWS,REC,SCI,SOC,TALK (example for the Big 8).

Information in these pages comes from INN's control.ctl, newsgroups file, the list of PGP public keys for newsgroup administration and the logs of control messages.
You might also want to read the Usenet hierarchy administration FAQ.