IPv4 Transfers January 2023

In January 2023, the five Regional Internet Registries recorded 982 transfers: 4,574,720 IPv4 addresses in 717 blocks, plus 122 IPv6 blocks and 143 AS numbers. 34 transfers moved resources between two registries. Dates are the dates the registry processed the transfer.

IPv4 addresses transferred
4.6M
717 IPv4 blocks
Registry transfers
982
122 IPv6 / 143 ASN
Inter-RIR transfers
34
67K IPv4 addresses (1%)
Mergers and acquisitions
478
504 market transfers

Transfer Volume by RIR

Transfers counted at the receiving registry. Inter-RIR columns show IPv4 that entered or left the region.

Transfers per Regional Internet Registry, January 2023
RegistryTransfersIPv4 receivedInter-RIR inInter-RIR out
ARIN4003,208,9604,60812,544
RIPE NCC5041,075,71231,2329,216
APNIC66253,69629,95219,456
AFRINIC424,576--
LACNIC811,7761,53626,112

Inter-RIR Transfers January 2023

IPv4 addresses moved from one registry to another. All inter-RIR transfers

IPv4 addresses transferred between Regional Internet Registries
From ↓ / To →RIPE NCCARINAPNICLACNICAFRINIC
RIPE NCC-
0
1 transfers
9,216
3 transfers
00
ARIN
11K
6 transfers
-
256
1 transfers
1,024
1 transfers
0
APNIC
18K
14 transfers
512
2 transfers
-
512
1 transfers
0
LACNIC
1,536
2 transfers
4,096
1 transfers
20K
2 transfers
-0
AFRINIC0000-

IPv4 Transfers by Block Size

Number of transferred IPv4 blocks per prefix length.

IPv4 transfers by prefix length, January 2023
Prefix lengthAddresses per blockBlocksShare of blocksIPv4 addresses
/15131,07210.1%131,072
/1665,536334.6%2,162,688
/1732,768233.2%753,664
/1816,384263.6%425,984
/198,192527.3%425,984
/204,096689.5%278,528
/212,048557.7%112,640
/221,02418926.4%193,536
/235128411.7%43,008
/2425618625.9%47,616

Top Receiving Countries

  1. 1🇺🇸 United States117K
  2. 2🇸🇬 Singapore78K
  3. 3🇵🇰 Pakistan33K
  4. 4🇭🇰 Hong Kong SAR China3,072
  5. 5🇨🇦 Canada2,048
  6. 6🇵🇭 Philippines2,048
  7. 7🇨🇴 Colombia2,048
  8. 8🇨🇳 China2,048
  9. 9🇹🇱 Timor-Leste1,280

Top Source Countries

  1. 1🇵🇷 Puerto Rico66K
  2. 2🇨🇦 Canada47K
  3. 3🇮🇳 India41K
  4. 4🇨🇳 China35K
  5. 5🇦🇺 Australia8,448
  6. 6🇧🇩 Bangladesh6,400
  7. 7🇵🇦 Panama4,096
  8. 8🇺🇸 United States3,328
  9. 9🇭🇰 Hong Kong SAR China3,072

IPv4 transferred across country borders in January 2023. Registry logs before mid-2025 do not carry a country for every transfer, so this ranking undercounts some regions.

Largest IPv4 Transfers January 2023