Still not very late for the IPv4 to IPv6 transition !

According to RIPE and NRO only 9% of the useable IPv4 address spaces are available.
This means that outage of the IPv4 addresses will be the fact in some region faster than others e.g. Asia Pacific have a real shortage by this summer while others could have some more IPv4 addresses available by latest end of next summer. So it is still not very late for the transition to IPv6!

The following graph shows that there are 24 of useable /8 IPv4 are available. For full size please  click on the following graph.

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3 thoughts on “Still not very late for the IPv4 to IPv6 transition !

  1. Why are 224 – 255 “not usable”?

    0 and 255 are reserved by ICANN “for research and other purposes”, but I don’t know any reason that the others cannot be used.

    • Very good question!
      Here are some quick answer

      224-239 reserved for multicast , this means this adresses are treated for multicast protocls and not useable
      240-254 (and 255 partly) reserved for formerly “Class E”) [RFC1112]
      255 ( 255.255.255.255 is reserved for “limited broadcast” destination address [RFC0919] and [RFC0922]

      Cheers

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