IPv4 Transfers July 2021

In July 2021, the five Regional Internet Registries recorded 1,077 transfers: 5,837,664 IPv4 addresses in 831 blocks, plus 113 IPv6 blocks and 133 AS numbers. 35 transfers moved resources between two registries. Dates are the dates the registry processed the transfer.

IPv4 addresses transferred
5.8M
831 IPv4 blocks
Registry transfers
1,077
113 IPv6 / 133 ASN
Inter-RIR transfers
35
61K IPv4 addresses (1%)
Mergers and acquisitions
417
660 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 2021
RegistryTransfersIPv4 receivedInter-RIR inInter-RIR out
ARIN3173,098,36816,64034,816
RIPE NCC6162,442,08026,62415,360
APNIC128269,56817,66411,264
AFRINIC923,296--
LACNIC74,352512-

Inter-RIR Transfers July 2021

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-
14K
9 transfers
1,024
2 transfers
256
1 transfers
0
ARIN
18K
3 transfers
-
17K
4 transfers
256
1 transfers
0
APNIC
8,704
10 transfers
2,560
5 transfers
-00
LACNIC000-0
AFRINIC0000-

IPv4 Transfers by Block Size

Number of transferred IPv4 blocks per prefix length.

IPv4 transfers by prefix length, July 2021
Prefix lengthAddresses per blockBlocksShare of blocksIPv4 addresses
/14262,14430.4%786,432
/15131,07220.2%262,144
/1665,536394.7%2,555,904
/1732,768111.3%360,448
/1816,384334.0%540,672
/198,192617.3%499,712
/204,096667.9%270,336
/212,048779.3%157,696
/221,02432539.1%332,800
/23512678.1%34,304
/2425614517.4%37,120
/266410.1%64
/273210.1%32

Top Receiving Countries

  1. 1🇸🇬 Singapore90K
  2. 2🇺🇸 United States33K
  3. 3🇨🇮 Côte d’Ivoire20K
  4. 4🇨🇦 Canada18K
  5. 5🇳🇿 New Zealand4,096
  6. 6🇵🇫 French Polynesia4,096
  7. 7🇰🇷 South Korea2,048
  8. 8🇲🇲 Myanmar (Burma)1,024
  9. 9🇭🇰 Hong Kong SAR China1,024

Top Source Countries

  1. 1🇨🇳 China68K
  2. 2🇻🇮 U.S. Virgin Islands29K
  3. 3🇺🇸 United States27K
  4. 4🇧🇯 Benin20K
  5. 5🇯🇵 Japan16K
  6. 6🇮🇳 India6,656
  7. 7🇨🇦 Canada5,120
  8. 8🇧🇩 Bangladesh2,560
  9. 9🇰🇾 Cayman Islands2,048

IPv4 transferred across country borders in July 2021. Registry logs before mid-2025 do not carry a country for every transfer, so this ranking undercounts some regions.

Largest IPv4 Transfers July 2021