there may be some rouge direct connected 44 address
ranges out there too.
All of the BGP announcements on the internet that include 44 space are
listed below. Brian says they are all accounted for. I assume that means
each of those subnets are registered in the portal.
# curl -s
http://thyme.rand.apnic.net/current/data-add-ARIN | grep " 44\."
7377 44.0.0.0/8
226 44.16.15.0/24
32915 44.24.240.0/20
12637 44.68.52.0/24
8121 44.74.128.0/24
61337 44.127.128.0/24
28748 44.130.99.0/24
56129 44.136.150.0/24
56129 44.136.151.0/24
8973 44.140.0.0/16
1653 44.140.47.0/24
39120 44.208.0.0/16