IPv4 Transfers May 2015

In May 2015, the five Regional Internet Registries recorded 245 transfers: 3,584,512 IPv4 addresses in 242 blocks, plus 0 IPv6 blocks and 3 AS numbers. 12 transfers moved resources between two registries. Dates are the dates the registry processed the transfer.

IPv4 addresses transferred
3.6M
242 IPv4 blocks
Registry transfers
245
0 IPv6 / 3 ASN
Inter-RIR transfers
12
1.3M IPv4 addresses (35%)
Mergers and acquisitions
10
235 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, May 2015
RegistryTransfersIPv4 receivedInter-RIR inInter-RIR out
ARIN421,369,600-1,262,336
APNIC311,323,0081,262,336-
RIPE NCC172891,904--

Inter-RIR Transfers May 2015

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-0000
ARIN0-
1.3M
12 transfers
00
APNIC00-00
LACNIC000-0
AFRINIC0000-

IPv4 Transfers by Block Size

Number of transferred IPv4 blocks per prefix length.

IPv4 transfers by prefix length, May 2015
Prefix lengthAddresses per blockBlocksShare of blocksIPv4 addresses
/13524,28810.4%524,288
/14262,14420.8%524,288
/15131,07252.1%655,360
/1665,536197.9%1,245,184
/1732,76883.3%262,144
/1816,38462.5%98,304
/198,192104.1%81,920
/204,096187.4%73,728
/212,048177.0%34,816
/221,0244418.2%45,056
/235124217.4%21,504
/242567028.9%17,920

Top Receiving Countries

  1. 1🇨🇳 China983K
  2. 2🇺🇸 United States393K
  3. 3🇯🇵 Japan262K
  4. 4🇸🇬 Singapore197K
  5. 5🇨🇦 Canada6,144
  6. 6🇦🇺 Australia768

Top Source Countries

  1. 1🇨🇦 Canada1.4M
  2. 2🇺🇸 United States449K

IPv4 transferred across country borders in May 2015. Registry logs before mid-2025 do not carry a country for every transfer, so this ranking undercounts some regions.

Largest IPv4 Transfers May 2015