ARIN received the IPv4 address blocks 108.0.0.0/8 and 184.0.0.0/8 from
the IANA on Dec. 22, 2008. We will begin making allocations of /20 and
shorter prefixes from these blocks in the near future in accordance with
ARIN's minimum allocation policy.
Network operators may wish to adjust any filters in place accordingly.
For informational purposes, a list of ARIN's currently administered IP
address blocks can be found at:
http://www.arin.net/reference/ip_blocks.html
Regards,
Leslie Nobile
Director, Registration Services
American Registry for Internet Numbers (ARIN)