ARIN Micro-allocations
The policy regarding micro-allocations is contained in Sections 4.4 and 6.10 of the Number Resource Policy Manual. Micro-allocations are made from specific blocks reserved for micro-allocation purposes.
Micro-allocations for Internal Infrastructure
IPv6 micro-allocations for internal infrastructure are made from 2001:0506::/31.
IPv6
- 2001:0506::/48
- 2001:0506:0008::/48
- 2001:0506:0010::/45
Micro-allocations for Exchange Points
The following blocks of IP address space have been allocated to organizations under ARIN's micro-allocation policy for exchange points. In IPv6, ARIN makes these allocations from 2001:0504::/31.
IPv4
- 206.223.90.0/23
- 206.223.114.0/24
- 206.223.115.0/24
- 206.223.116.0/24
- 206.223.117.0/24
- 206.223.118.0/24
- 206.223.119.0/24
- 206.223.120.0/24
- 206.223.121.0/24
- 206.223.122.0/24
- 206.223.123.0/24
- 206.223.124.0/24
- 206.223.125.0/24
- 206.223.126.0/24
- 206.223.127.0/24
- 206.223.128.0/24
- 206.223.129.0/24
- 206.223.130.0/24
- 206.223.131.0/24
- 206.223.132.0/22
- 206.223.137.0/24
- 206.223.138.0/24
- 206.223.139.0/24
- 206.223.140.0/24
- 206.223.141.0/24
- 206.223.142.0/24
- 206.223.143.0/24
- 206.197.31.0/24
- 206.197.169.0/24
- 206.197.184.0/24
- 206.197.187.0/24
- 206.197.210.0/24
- 206.51.36.0/22
- 206.51.7.0/24
- 206.51.40.0/21
- 206.51.30.0/24
- 206.51.33.0/24
IPv6
- 2001:0504:0009::/48
- 2001:0504:0008::/48
- 2001:0504:0007::/48
- 2001:0504:0006::/48
- 2001:0504:0005::/48
- 2001:0504:0004::/48
- 2001:0504:0003::/48
- 2001:0504:0002::/48
- 2001:0504:0001::/48
- 2001:0504:0000::/48
- 2001:0504:000A::/48
- 2001:0504:000B::/48
- 2001:0504:000C::/48
- 2001:0504:000D::/48
- 2001:0504:000E::/48
- 2001:0504:000F::/48
- 2001:0504:0010::/48
- 2001:0504:0011::/48
- 2001:0504:0012::/48
- 2001:0504:0013::/48
- 2001:0504:0014::/48
Micro-allocations for Critical Infrastructure
The following blocks of IP address space have been allocated to organizations under ARIN's micro-allocation policy for gTLDs, ccTLDs, RIRs, and ICANN, as well as all named servers of the domain. In IPv6, ARIN makes these allocations from 2001:0500::/30.
IPv4
- 192.5.6.0/24
- 192.12.94.0/24
- 192.26.92.0/24
- 192.31.80.0/24
- 192.31.177.0/24
- 192.31.178.0/24
- 192.31.179.0/24
- 192.33.14.0/24
- 192.35.51.0/24
- 192.41.162.0/24
- 192.42.93.0/24
- 192.43.172.0/24
- 192.48.79.0/24
- 192.52.178.0/24
- 192.54.112.0/24
- 192.55.83.0/24
- 192.58.128.0/24
- 192.88.99.0/24
- 192.149.62.0/24
- 192.149.63.0/24
- 192.149.64.0/24
- 192.149.65.0/24
- 192.149.66.0/24
- 192.158.248.0/22
- 192.158.252.0/24
- 192.228.21.0/24
- 192.228.22.0/23
- 192.228.24.0/21
- 192.228.79.0/24
- 192.228.80.0/21
- 192.228.88.0/22
- 192.228.92.0/24
- 199.4.28.0/22
- 199.6.0.0/21
- 199.6.8.0/22
- 199.6.12.0/23
- 199.6.14.0/24
- 199.7.48.0/20
- 199.7.92.0/24
- 199.7.86.0/24
- 199.7.77.0/24
- 199.7.64.0/24
- 199.7.65.0/24
- 199.7.66.0/23
- 199.7.68.0/23
- 199.7.71.0/24
- 199.7.72.0/22
- 199.7.76.0/24
- 199.7.78.0/23
- 199.7.80.0/24
- 199.43.0.0/24
- 199.7.83.0/24
- 199.19.48.0/21
- 199.19.56.0/23
- 199.7.81.0/24
- 199.7.87.0/24
- 199.7.88.0/23
- 199.7.90.0/24
- 199.7.85.0/24
- 199.7.94.0/23
- 199.7.91.0/24
- 199.254.28.0 /22
- 199.254.48.0 /20
IPv6
- 2001:0500:0000::/48
- 2001:0500:0001::/48
- 2001:0500:0002::/48
- 2001:0500:0003::/48
- 2001:0503:A83E::/48
- 2001:0503:231D::/48
- 2001:0503:BA3E::/48
- 2001:0503:0C27::/48
- 2001:0503:FF39::/48
- 2001:0503:5AE2::/48
- 2001:0503:6810::/48
- 2001:0503:F3DA::/48
- 2001:0503:83EB::/48
- 2001:0503:3227::/48
- 2001:0503:F189::/48
- 2001:0503:0D2D::/48
- 2001:0503:CC2C::/48
- 2001:0503:7BBF::/48
- 2001:0503:D414::/48
- 2001:0503:EEA3::/48
- 2001:0503:4872::/48
- 2001:0503:39C1::/48
- 2001:0503:C779::/48
- 2001:0503:7BBB::/48
- 2001:0503:8028::/48
- 2001:0503:D1AE::/48
- 2001:0503:A124::/48
- 2001:0502:D399::/48
- 2001:0502:7A71::/48
- 2001:0502:CFB5::/48
- 2001:0502:100E::/48
- 2001:0502:AD09::/48
- 2001:0502:2EDA::/48
- 2001:0502:4612::/48
- 2001:0502:F3FF::/48
- 2001:0500:0004::/48
- 2001:0500:0006::/48
- 2001:0500:0007::/48
- 2001:0500:0008::/48
- 2001:0500:0009::/48
- 2001:0500:000A::/48
- 2001:0500:000B::/48
- 2001:0500:000C::/48
- 2001:0500:000D::/48
- 2001:0500:000E::/48
- 2001:0500:000F::/48
- 2001:0500:0010::/48
- 2001:0500:0011::/48
- 2001:0500:0012::/48
- 2001:0500:0014::/47
- 2001:0500:0016::/47
- 2001:0500:0018::/45
- 2001:0500:0020::/45
- 2001:0500:0028::/46
- 2001:0500:002C::/48
- 2001:0500:002D::/48
- 2001:0500:002E::/47
- 2001:0500:0030::/48