IPv4 Transfers April 2023
In April 2023, the five Regional Internet Registries recorded 1,639 transfers: 5,213,440 IPv4 addresses in 1,314 blocks, plus 196 IPv6 blocks and 129 AS numbers. 26 transfers moved resources between two registries. Dates are the dates the registry processed the transfer.
IPv4 addresses transferred
5.2M
1,314 IPv4 blocks
Registry transfers
1,639
196 IPv6 / 129 ASN
Inter-RIR transfers
26
256K IPv4 addresses (5%)
Mergers and acquisitions
751
888 market transfers
Transfer Volume by RIR
Transfers counted at the receiving registry. Inter-RIR columns show IPv4 that entered or left the region.
Inter-RIR Transfers April 2023
IPv4 addresses moved from one registry to another. All inter-RIR transfers
| From ↓ / To → | RIPE NCC | ARIN | APNIC | LACNIC | AFRINIC |
|---|---|---|---|---|---|
| RIPE NCC | - | 131K 2 transfers | 33K 3 transfers | 0 | 0 |
| ARIN | 76K 12 transfers | - | 0 | 0 | 0 |
| APNIC | 768 2 transfers | 512 1 transfers | - | 0 | 0 |
| LACNIC | 1,024 1 transfers | 3,072 3 transfers | 10K 2 transfers | - | 0 |
| AFRINIC | 0 | 0 | 0 | 0 | - |
IPv4 Transfers by Block Size
Number of transferred IPv4 blocks per prefix length.
| Prefix length | Addresses per block | Blocks | Share of blocks | IPv4 addresses |
|---|---|---|---|---|
| /14 | 262,144 | 2 | 0.2% | 524,288 |
| /15 | 131,072 | 4 | 0.3% | 524,288 |
| /16 | 65,536 | 24 | 1.8% | 1,572,864 |
| /17 | 32,768 | 22 | 1.7% | 720,896 |
| /18 | 16,384 | 23 | 1.8% | 376,832 |
| /19 | 8,192 | 66 | 5.0% | 540,672 |
| /20 | 4,096 | 47 | 3.6% | 192,512 |
| /21 | 2,048 | 88 | 6.7% | 180,224 |
| /22 | 1,024 | 326 | 24.8% | 333,824 |
| /23 | 512 | 253 | 19.3% | 129,536 |
| /24 | 256 | 459 | 34.9% | 117,504 |
Top Receiving Countries
- 1🇸🇬 Singapore108K
- 2🇨🇦 Canada87K
- 3🇺🇸 United States76K
- 4🇦🇺 Australia2,048
- 5🇪🇨 Ecuador1,280
- 6🇹🇭 Thailand1,024
- 7🇭🇰 Hong Kong SAR China1,024
- 8🇸🇪 Sweden1,024
Top Source Countries
- 1🇺🇸 United States86K
- 2🇨🇦 Canada73K
- 3🇨🇳 China67K
- 4🇧🇷 Brazil4,352
- 5🇮🇳 India1,792
- 6🇭🇰 Hong Kong SAR China1,024
- 7🇲🇽 Mexico1,024
- 8🇧🇩 Bangladesh512
IPv4 transferred across country borders in April 2023. Registry logs before mid-2025 do not carry a country for every transfer, so this ranking undercounts some regions.
Largest IPv4 Transfers April 2023
- 83.160.0.0/14Transfer ·
- 82.92.0.0/14Transfer ·
- 72.38.0.0/15M&A ·
- 94.36.0.0/15inter-RIRTransfer ·
- 80.126.0.0/15Transfer ·
- 80.100.0.0/15Transfer ·
- 101.47.0.0/16Transfer ·
- 66.221.0.0/16Transfer ·
- 66.34.0.0/16Transfer ·
- 143.226.0.0/16inter-RIRTransfer ·
- 24.150.0.0/16M&A ·
- 24.141.0.0/16M&A ·
- 24.57.0.0/16M&A ·
- 24.36.0.0/16M&A ·
- 173.238.0.0/16M&A ·
- 67.193.0.0/16M&A ·
- 217.176.0.0/16Transfer ·
- 212.207.0.0/16Transfer ·
- 131.209.0.0/16M&A ·
- 134.132.0.0/16M&A ·
- 160.93.0.0/16M&A ·
- 138.113.0.0/16Transfer ·
- 151.129.0.0/16Transfer ·
- 91.99.0.0/16Transfer ·
- 162.10.0.0/16M&A ·
| Date | Resource | From | To | Type |
|---|---|---|---|---|
| 83.160.0.0/14 | Xs4all Internet BV | KPN B.V. | Transfer | |
| 82.92.0.0/14 | Xs4all Internet BV | KPN B.V. | Transfer | |
| 72.38.0.0/15 | M&A | |||
| 94.36.0.0/15inter-RIR | Tiscali Italia S.P.A. | Transfer | ||
| 80.126.0.0/15 | Xs4all Internet BV | KPN B.V. | Transfer | |
| 80.100.0.0/15 | Xs4all Internet BV | KPN B.V. | Transfer | |
| 101.47.0.0/16 | Transfer | |||
| 66.221.0.0/16 | Transfer | |||
| 66.34.0.0/16 | Transfer | |||
| 143.226.0.0/16inter-RIR | Microsoft Limited | Transfer | ||
| 24.150.0.0/16 | M&A | |||
| 24.141.0.0/16 | M&A | |||
| 24.57.0.0/16 | M&A | |||
| 24.36.0.0/16 | M&A | |||
| 173.238.0.0/16 | M&A | |||
| 67.193.0.0/16 | M&A | |||
| 217.176.0.0/16 | RM Education Ltd | Microsoft Limited | Transfer | |
| 212.207.0.0/16 | RM Education Ltd | Microsoft Limited | Transfer | |
| 131.209.0.0/16 | M&A | |||
| 134.132.0.0/16 | M&A | |||
| 160.93.0.0/16 | M&A | |||
| 138.113.0.0/16 | Transfer | |||
| 151.129.0.0/16 | Office of the KENT Police and Crime | Microsoft Limited | Transfer | |
| 91.99.0.0/16 | Pars Online PJS | Hetzner Online GmbH | Transfer | |
| 162.10.0.0/16 | M&A |