IPv4 Transfers 2017

In 2017, the five Regional Internet Registries recorded 8,002 transfers that moved 126,091,904 IPv4 addresses in 6,589 blocks, 215 of them between two registries. Figures come from the RIRs' official transfer logs and include mergers and acquisitions.

IPv4 addresses transferred
126.1M
6,589 IPv4 blocks
Registry transfers
8,002
399 IPv6 / 1,014 ASN
Inter-RIR transfers
215
3.7M IPv4 addresses (3%)
Mergers and acquisitions
2,680
5,322 market transfers

Monthly Transfer Volume 2017 by receiving RIR

IPv4 transfers per month in 2017
MonthTransfersIPv4 addresses
December 20179078,883,072
November 201785617,093,632
October 201764620,102,912
September 20175874,815,104
August 20176009,226,880
July 20177846,113,536
June 20171,11335,788,800
May 20175042,130,432
April 20175238,284,032
March 20177713,684,352
February 20173483,114,240
January 20173636,854,912

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, 2017
RegistryTransfersIPv4 receivedInter-RIR inInter-RIR out
ARIN3,50995,873,024197,8882,894,080
RIPE NCC3,55225,018,2401,579,008732,928
APNIC9275,100,2881,930,24080,128
LACNIC14100,352--

Inter-RIR Transfers 2017

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-
124K
18 transfers
609K
27 transfers
00
ARIN
1.6M
85 transfers
-
1.3M
72 transfers
00
APNIC
6,400
3 transfers
74K
10 transfers
-00
LACNIC000-0
AFRINIC0000-

IPv4 Transfers by Block Size

Number of transferred IPv4 blocks per prefix length.

IPv4 transfers by prefix length, 2017
Prefix lengthAddresses per blockBlocksShare of blocksIPv4 addresses
/816,777,21610.0%16,777,216
/98,388,60810.0%8,388,608
/104,194,30430.0%12,582,912
/112,097,15240.1%8,388,608
/121,048,576120.2%12,582,912
/13524,288150.2%7,864,320
/14262,144330.5%8,650,752
/15131,072530.8%6,946,816
/1665,5363976.0%26,017,792
/1732,7681452.2%4,751,360
/1816,3842153.3%3,522,560
/198,1924316.5%3,530,752
/204,0965388.2%2,203,648
/212,0486169.3%1,261,568
/221,0241,80627.4%1,849,344
/2351270310.7%359,936
/242561,61024.4%412,160
/2512840.1%512
/266420.0%128

Top Receiving Countries

  1. 1🇺🇸 United States2.8M
  2. 2🇨🇳 China977K
  3. 3🇯🇵 Japan510K
  4. 4🇨🇦 Canada361K
  5. 5🇮🇳 India271K
  6. 6🇭🇰 Hong Kong SAR China137K
  7. 7🇸🇬 Singapore93K
  8. 8🇦🇺 Australia87K
  9. 9🇲🇾 Malaysia73K

Top Source Countries

  1. 1🇨🇦 Canada2.7M
  2. 2🇺🇸 United States1.7M
  3. 3🇸🇬 Singapore272K
  4. 4🇦🇺 Australia165K
  5. 5🇳🇿 New Zealand68K
  6. 6🇰🇳 St. Kitts & Nevis46K
  7. 7🇵🇦 Panama33K
  8. 8🇯🇵 Japan17K
  9. 9🇦🇷 Argentina16K

IPv4 transferred across country borders in 2017. Registry logs before mid-2025 do not carry a country for every transfer, so this ranking undercounts some regions.

Largest IPv4 Transfers 2017