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thenetworkery

DN42 free resource finder

Unregistered AS numbers, free IPv4 blocks and a random unused IPv6 /48 – checked against the live registry.

IPv4 block size

Result

0 passed · 0 warnings · 0 problems

  • 1464 of 4000 DN42 AS numbers are unregistered.

  • Free means unregistered right now – the registry is first come, first served, so register what you pick soon.

Free AS numbers

  • AS4242422835
  • AS4242423951
  • AS4242422815
  • AS4242423791
  • AS4242421290
  • AS4242420317
  • AS4242420178
  • AS4242420435
  • AS4242423696
  • AS4242422257

Free IPv4 /27 blocks

  • 172.21.9.160/27
  • 172.21.16.192/27
  • 172.21.169.0/27
  • 172.21.173.128/27
  • 172.22.42.160/27
  • 172.22.61.192/27
  • 172.22.175.128/27
  • 172.23.210.64/27

Random unused IPv6 /48

fdd2:324:8794::/48

Generated the RFC 4193 way (random 40-bit global ID), so it will not clash with other networks you join later.

Next steps: the DN42 wiki’s “Getting started” guide explains creating your maintainer, person, aut-num, inetnum, inet6num and route objects in one registry pull request. dn42.dev