IPv4 Transfers December 2011
In December 2011, the five Regional Internet Registries recorded 13 transfers: 1,139,200 IPv4 addresses in 13 blocks, plus 0 IPv6 blocks and 0 AS numbers. 0 transfers moved resources between two registries. Dates are the dates the registry processed the transfer.
IPv4 addresses transferred
1.1M
13 IPv4 blocks
Registry transfers
13
0 IPv6 / 0 ASN
Inter-RIR transfers
0
0 IPv4 addresses (0%)
Mergers and acquisitions
0
13 market transfers
Transfer Volume by RIR
Transfers counted at the receiving registry. Inter-RIR columns show IPv4 that entered or left the region.
IPv4 Transfers by Block Size
Number of transferred IPv4 blocks per prefix length.
| Prefix length | Addresses per block | Blocks | Share of blocks | IPv4 addresses |
|---|---|---|---|---|
| /12 | 1,048,576 | 1 | 7.7% | 1,048,576 |
| /16 | 65,536 | 1 | 7.7% | 65,536 |
| /19 | 8,192 | 1 | 7.7% | 8,192 |
| /20 | 4,096 | 3 | 23.1% | 12,288 |
| /22 | 1,024 | 3 | 23.1% | 3,072 |
| /23 | 512 | 2 | 15.4% | 1,024 |
| /24 | 256 | 2 | 15.4% | 512 |
Largest IPv4 Transfers December 2011
- 54.240.0.0/12Transfer ·
- 174.44.0.0/16Transfer ·
- 180.131.224.0/19Transfer ·
- 49.248.224.0/20Transfer ·
- 180.131.208.0/20Transfer ·
- 27.0.16.0/20Transfer ·
- 49.248.240.0/22Transfer ·
- 116.68.160.0/22Transfer ·
- 208.83.128.0/22Transfer ·
- 49.248.244.0/23Transfer ·
- 116.68.164.0/23Transfer ·
- 116.68.168.0/24Transfer ·
- 116.68.166.0/24Transfer ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 54.240.0.0/12 | Transfer | |||
| 174.44.0.0/16 | Transfer | |||
| 180.131.224.0/19 | Transfer | |||
| 49.248.224.0/20 | Transfer | |||
| 180.131.208.0/20 | Transfer | |||
| 27.0.16.0/20 | Transfer | |||
| 49.248.240.0/22 | Transfer | |||
| 116.68.160.0/22 | Transfer | |||
| 208.83.128.0/22 | Transfer | |||
| 49.248.244.0/23 | Transfer | |||
| 116.68.164.0/23 | Transfer | |||
| 116.68.168.0/24 | Transfer | |||
| 116.68.166.0/24 | Transfer |