Changelog

Not much happens here. Tables get corrected when I notice a mistake.

2026-09-20

Added ASCII and MIME tables, links to the sources under every table, a light theme (follows the system setting), print styles and anchor links on headings. Moved styles into a separate stylesheet, added proper favicons, added this page and about.

2026-04-25

Fixed the /31 note in the IPv4 chart (RFC 3021) and the wildcard column for /4.

2026-04-18

Added IPv6 prefixes, ANSI colour codes and timezone offsets.

2026-03-12

First version: IPv4 subnets, HTTP status codes, common ports, Unix signals, chmod octal, SI prefixes, byte units.