ARIN received the IPv4
address blocks 18.104.22.168 /8 and 22.214.171.124 /8 and 126.96.36.199 /8 from the IANA on June
17, 2005. In the near future, ARIN will begin making allocations from these
new blocks. This will include allocations of /20 and shorter prefixes,
according to ARIN's minimum allocation policy.
You may wish to adjust any
filters you have in place accordingly.
For informational purposes,
a list of ARIN's currently administered IP blocks can be found under "CIDR
American Registry for
Internet Numbers (ARIN)