IPv4 Transfers December 2023

In December 2023, the five Regional Internet Registries recorded 1,486 transfers: 5,922,944 IPv4 addresses in 1,065 blocks, plus 212 IPv6 blocks and 209 AS numbers. 51 transfers moved resources between two registries. Dates are the dates the registry processed the transfer.

IPv4 addresses transferred
5.9M
1,065 IPv4 blocks
Registry transfers
1,486
212 IPv6 / 209 ASN
Inter-RIR transfers
51
1.7M IPv4 addresses (30%)
Mergers and acquisitions
232
1,254 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, December 2023
RegistryTransfersIPv4 receivedInter-RIR inInter-RIR out
RIPE NCC1,1453,033,2161,081,344626,176
ARIN2512,687,488663,0401,014,272
APNIC70185,600-105,216
LACNIC2016,6405,3764,096

Inter-RIR Transfers December 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-
625K
9 transfers
0
1,024
1 transfers
0
ARIN
1.0M
27 transfers
-0
256
1 transfers
0
APNIC
67K
4 transfers
34K
3 transfers
-
4,096
3 transfers
0
LACNIC0
4,096
3 transfers
0-0
AFRINIC0000-

IPv4 Transfers by Block Size

Number of transferred IPv4 blocks per prefix length.

IPv4 transfers by prefix length, December 2023
Prefix lengthAddresses per blockBlocksShare of blocksIPv4 addresses
/13524,28810.1%524,288
/15131,07250.5%655,360
/1665,536343.2%2,228,224
/1732,768181.7%589,824
/1816,384343.2%557,056
/198,192484.5%393,216
/204,096827.7%335,872
/212,048878.2%178,176
/221,02431029.1%317,440
/2351211510.8%58,880
/2425633031.0%84,480
/2512810.1%128

Top Receiving Countries

  1. 1🇸🇬 Singapore33K
  2. 2🇺🇸 United States18K
  3. 3🇨🇦 Canada14K
  4. 4🇭🇰 Hong Kong SAR China2,048
  5. 5🇨🇳 China1,024
  6. 6🇪🇨 Ecuador1,024
  7. 7🇲🇽 Mexico512
  8. 8🇮🇳 India256
  9. 9🇺🇾 Uruguay256

Top Source Countries

  1. 1🇯🇵 Japan102K
  2. 2🇦🇺 Australia35K
  3. 3🇨🇦 Canada17K
  4. 4🇺🇸 United States10K
  5. 5🇨🇳 China4,096
  6. 6🇦🇷 Argentina4,096
  7. 7🇧🇩 Bangladesh1,280
  8. 8🇮🇳 India1,024
  9. 9🇪🇸 Spain1,024
  10. 10🇧🇷 Brazil512

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

Largest IPv4 Transfers December 2023