IPv4 Transfers October 2023

In October 2023, the five Regional Internet Registries recorded 1,391 transfers: 7,014,656 IPv4 addresses in 1,096 blocks, plus 155 IPv6 blocks and 140 AS numbers. 48 transfers moved resources between two registries. Dates are the dates the registry processed the transfer.

IPv4 addresses transferred
7.0M
1,096 IPv4 blocks
Registry transfers
1,391
155 IPv6 / 140 ASN
Inter-RIR transfers
48
2.7M IPv4 addresses (39%)
Mergers and acquisitions
334
1,057 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, October 2023
RegistryTransfersIPv4 receivedInter-RIR inInter-RIR out
RIPE NCC9844,386,3042,676,48033,536
ARIN3162,142,4641,7922,556,672
APNIC77473,34452,736140,800
LACNIC1412,544--

Inter-RIR Transfers October 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-
256
1 transfers
33K
4 transfers
00
ARIN
2.5M
20 transfers
-
19K
5 transfers
00
APNIC
139K
15 transfers
1,536
3 transfers
-00
LACNIC000-0
AFRINIC0000-

IPv4 Transfers by Block Size

Number of transferred IPv4 blocks per prefix length.

IPv4 transfers by prefix length, October 2023
Prefix lengthAddresses per blockBlocksShare of blocksIPv4 addresses
/121,048,57610.1%1,048,576
/13524,28810.1%524,288
/14262,14410.1%262,144
/15131,07250.5%655,360
/1665,536393.6%2,555,904
/1732,768111.0%360,448
/1816,384242.2%393,216
/198,192373.4%303,104
/204,096423.8%172,032
/212,048867.8%176,128
/221,02441037.4%419,840
/2351212211.1%62,464
/2425631728.9%81,152

Top Receiving Countries

  1. 1🇺🇸 United States213K
  2. 2🇭🇰 Hong Kong SAR China42K
  3. 3🇸🇬 Singapore37K
  4. 4🇨🇦 Canada22K
  5. 5🇮🇳 India2,048
  6. 6🇨🇭 Switzerland1,024
  7. 7🇧🇲 Bermuda1,024
  8. 8🇲🇴 Macao SAR China1,024
  9. 9🇩🇴 Dominican Republic1,024

Top Source Countries

  1. 1🇨🇦 Canada210K
  2. 2🇦🇺 Australia73K
  3. 3🇮🇳 India69K
  4. 4🇨🇳 China35K
  5. 5🇺🇸 United States31K
  6. 6🇯🇵 Japan2,048
  7. 7🇭🇰 Hong Kong SAR China1,792
  8. 8🇳🇿 New Zealand1,024
  9. 9🇧🇷 Brazil1,024

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

Largest IPv4 Transfers October 2023