[arin-ppml] ARIN returns some IPv4 address space to IANA

[ARIN]

<<Apologies for duplicates>>

Given the recent ICANN Board adoption of Global Policy 
Proposal-IPv4–2011, the ARIN Board of Trustees at its 6 June meeting 
directed ARIN staff to return to the IANA the IPv4 address blocks that 
have been voluntarily returned to ARIN in recent years. The total amount 
of space being returned to the IANA amounts to roughly a /8 equivalent 
and includes the large block of IPv4 addresses returned to ARIN by 
Interop in 2010.

Below is the final list of address space that has been returned to the 
IANA and this will be reflected in ARIN's database within the next few 
hours.

45.2.0.0/15
45.4.0.0/14
45.8.0.0/13
45.16.0.0/12
45.32.0.0/11
45.64.0.0/10
45.128.0.0/9
66.218.132.0/23
66.251.128.0/18
72.44.16.0/20
74.91.48.0/20
144.48.0.0/16
162.12.196.0/22
162.12.200.0/21
162.12.208.0/21
162.12.216.0/22
162.12.224.0/21
162.12.232.0/22
162.12.240.0/21
192.75.4.0/24
192.75.137.0/24
192.75.236.0/24
192.147.11.0/24
192.156.202.0/24
192.197.113.0/24
192.231.238.0/24
198.17.79.0/24
199.21.172.0/22
199.212.57.0/24
204.8.204.0/22
204.11.0.0/22
204.48.32.0/23
204.52.191.0/24
204.225.42.0/23
205.211.83.0/24
207.115.112.0/20
208.73.240.0/22
208.85.156.0/22
209.107.128.0/18
216.98.208.0/20
216.250.96.0/20


Regards,

Communications and Member Services
American Registry for Internet Numbers (ARIN)