Update on IPv4 Depletion from ARIN 35

At Day One of ARIN 35 in San Francisco, Leslie Nobile of ARIN presented an ARIN Update on IPv4 Depletion.

• ARIN has no /8, /9, /10’s left;

• They expect to deplete to only /16’s available shortly;

• ARIN will quickly get to only /24’s available as the current inventory is at .24 /8 equivalent.;

• ~19 /16 equivalents are on a 60 day hold, in quarantine, representing returned and revoked space;

• 64 /16’s for NRPM 4.10 are dedicated IPv4 blocks to facilitate IPv6 deployment

• ~8 /16’s need further research (reclamation / chain of custody)

• https://www.arin.net/knowledge/statistics/rir.html is a great link for information on ARIN IPv4 allocations and the available pool; It also has other RIR statistics.

• There are 4 choices on how to get IPv4 if you need it
  • Apply for IPv4 and see if ARIN has inventory
  • Apply for IPv4 and go waiting list
  • Do 8.3 transfer
  • Request IPv6

• If ARIN cannot fulfill your request, then the queue is emptied using first in – first out for requests regardless of block size. For example, if a /16 comes in and a /24 is at the top of the queue, the /24 would be given out of the /16.

• For 8.3 transfers, the current registrant must have had the IPs for 12 months and cannot get more IPs for 12 months (this is the anti-flip measure); The buyer must demonstrate need based on 24 months use; Once pre-approval is given, it is valid for two years.

• If a company inadvertently is listed on the public side of the STLS, it can be corrected manually.

• Slow start does not apply for 8.3 transfers, meaning any of IPv4 size block can be obtained, if justified.

Lots of great information at this presentation!