Input

Registry names are shown in English. This bundled list is not a live query.

Result

Run the tool to see the result.

How to use

Enter a code from 100 to 599, a class such as 4xx, or an English registry description; blank shows all entries. The list is bundled from the IANA registry updated 2025-09-15 and is not a live query. Unassigned ranges and temporary or obsolete notes are retained as registry data, including stated expiry dates. Registry descriptions remain in English.