IPv4 Transfers July 2023

In July 2023, the five Regional Internet Registries recorded 905 transfers: 7,618,816 IPv4 addresses in 650 blocks, plus 120 IPv6 blocks and 135 AS numbers. 27 transfers moved resources between two registries. Dates are the dates the registry processed the transfer.

IPv4 addresses transferred
7.6M
650 IPv4 blocks
Registry transfers
905
120 IPv6 / 135 ASN
Inter-RIR transfers
27
1.5M IPv4 addresses (20%)
Mergers and acquisitions
297
608 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, July 2023
RegistryTransfersIPv4 receivedInter-RIR inInter-RIR out
ARIN2695,582,336197,6321,318,400
RIPE NCC5251,874,9441,280,768147,456
APNIC99148,22453,24869,888
LACNIC1013,0564,096-
AFRINIC2256--

Inter-RIR Transfers July 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-
131K
4 transfers
16K
1 transfers
00
ARIN
1.3M
13 transfers
-
37K
2 transfers
4,096
1 transfers
0
APNIC
3,328
4 transfers
67K
2 transfers
-00
LACNIC000-0
AFRINIC0000-

IPv4 Transfers by Block Size

Number of transferred IPv4 blocks per prefix length.

IPv4 transfers by prefix length, July 2023
Prefix lengthAddresses per blockBlocksShare of blocksIPv4 addresses
/121,048,57620.3%2,097,152
/13524,28810.2%524,288
/14262,14420.3%524,288
/15131,07210.2%131,072
/1665,536467.1%3,014,656
/1732,768111.7%360,448
/1816,384182.8%294,912
/198,192203.1%163,840
/204,096324.9%131,072
/212,048507.7%102,400
/221,02417026.2%174,080
/235129614.8%49,152
/2425620130.9%51,456

Top Receiving Countries

  1. 1🇺🇸 United States169K
  2. 2🇸🇬 Singapore16K
  3. 3🇨🇦 Canada7,168
  4. 4🇹🇼 Taiwan4,096
  5. 5🇧🇷 Brazil4,096
  6. 6🇲🇾 Malaysia1,024
  7. 7🇯🇵 Japan512
  8. 8🇭🇰 Hong Kong SAR China256
  9. 9🇲🇲 Myanmar (Burma)256

Top Source Countries

  1. 1🇨🇦 Canada103K
  2. 2🇳🇿 New Zealand66K
  3. 3🇺🇸 United States47K
  4. 4🇸🇬 Singapore2,304
  5. 5🇦🇫 Afghanistan1,024
  6. 6🇭🇰 Hong Kong SAR China1,024
  7. 7🇯🇵 Japan1,024
  8. 8🇮🇳 India512
  9. 9🇦🇺 Australia256

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

Largest IPv4 Transfers July 2023