IPv4 Transfers March 2023

In March 2023, the five Regional Internet Registries recorded 1,452 transfers: 6,038,272 IPv4 addresses in 982 blocks, plus 325 IPv6 blocks and 145 AS numbers. 30 transfers moved resources between two registries. Dates are the dates the registry processed the transfer.

IPv4 addresses transferred
6.0M
982 IPv4 blocks
Registry transfers
1,452
325 IPv6 / 145 ASN
Inter-RIR transfers
30
322K IPv4 addresses (5%)
Mergers and acquisitions
285
1,167 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, March 2023
RegistryTransfersIPv4 receivedInter-RIR inInter-RIR out
ARIN2684,382,976256267,520
RIPE NCC1,0711,144,576277,76040,960
APNIC87401,15243,0084,608
AFRINIC1075,264--
LACNIC1634,3041,2809,216

Inter-RIR Transfers March 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
41K
4 transfers
00
ARIN
264K
8 transfers
-
2,048
2 transfers
1,280
3 transfers
0
APNIC
4,352
9 transfers
256
1 transfers
-00
LACNIC
9,216
3 transfers
00-0
AFRINIC0000-

IPv4 Transfers by Block Size

Number of transferred IPv4 blocks per prefix length.

IPv4 transfers by prefix length, March 2023
Prefix lengthAddresses per blockBlocksShare of blocksIPv4 addresses
/1665,536606.1%3,932,160
/1732,768101.0%327,680
/1816,384313.2%507,904
/198,192575.8%466,944
/204,096464.7%188,416
/212,048585.9%118,784
/221,02437237.9%380,928
/2351210310.5%52,736
/2425624524.9%62,720

Top Receiving Countries

  1. 1🇸🇬 Singapore80K
  2. 2🇲🇺 Mauritius75K
  3. 3🇺🇸 United States71K
  4. 4🇨🇦 Canada40K
  5. 5🇺🇰 United Kingdom4,096
  6. 6🇪🇸 Spain4,096
  7. 7🇵🇰 Pakistan2,048
  8. 8🇨🇱 Chile2,048
  9. 9🇧🇷 Brazil1,024

Top Source Countries

  1. 1🇳🇦 Namibia75K
  2. 2🇨🇦 Canada71K
  3. 3🇮🇳 India49K
  4. 4🇺🇸 United States43K
  5. 5🇧🇷 Brazil8,192
  6. 6🇭🇰 Hong Kong SAR China6,656
  7. 7🇧🇩 Bangladesh5,120
  8. 8🇦🇷 Argentina2,048
  9. 9🇦🇺 Australia1,024

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

Largest IPv4 Transfers March 2023