IPv4 Transfers 2016

In 2016, the five Regional Internet Registries recorded 6,369 transfers that moved 134,781,952 IPv4 addresses in 5,299 blocks, 199 of them between two registries. Figures come from the RIRs' official transfer logs and include mergers and acquisitions.

IPv4 addresses transferred
134.8M
5,299 IPv4 blocks
Registry transfers
6,369
281 IPv6 / 789 ASN
Inter-RIR transfers
199
5.3M IPv4 addresses (4%)
Mergers and acquisitions
1,560
4,809 market transfers

Monthly Transfer Volume 2016 by receiving RIR

IPv4 transfers per month in 2016
MonthTransfersIPv4 addresses
December 20167842,690,560
November 20164872,687,232
October 20165395,010,688
September 20165237,345,408
August 201665366,258,176
July 20165213,002,368
June 20165865,163,520
May 201663431,302,144
April 20163663,500,032
March 20164464,436,480
February 20165562,310,656
January 20162741,074,688

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, 2016
RegistryTransfersIPv4 receivedInter-RIR inInter-RIR out
ARIN2,427116,971,008305,6644,755,456
RIPE NCC3,0259,453,5681,493,248393,728
APNIC9128,297,9843,498,240147,968
LACNIC559,392--

Inter-RIR Transfers 2016

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-
279K
10 transfers
115K
3 transfers
00
ARIN
1.4M
104 transfers
-
3.4M
56 transfers
00
APNIC
121K
14 transfers
27K
12 transfers
-00
LACNIC000-0
AFRINIC0000-

IPv4 Transfers by Block Size

Number of transferred IPv4 blocks per prefix length.

IPv4 transfers by prefix length, 2016
Prefix lengthAddresses per blockBlocksShare of blocksIPv4 addresses
/816,777,21610.0%16,777,216
/98,388,60810.0%8,388,608
/104,194,30440.1%16,777,216
/112,097,15280.2%16,777,216
/121,048,576150.3%15,728,640
/13524,288200.4%10,485,760
/14262,144350.7%9,175,040
/15131,072551.0%7,208,960
/1665,5362825.3%18,481,152
/1732,7681031.9%3,375,104
/1816,3842073.9%3,391,488
/198,1923867.3%3,162,112
/204,0964769.0%1,949,696
/212,04857710.9%1,181,696
/221,0241,26523.9%1,295,360
/2351258411.0%299,008
/242561,28024.2%327,680

Top Receiving Countries

  1. 1🇸🇬 Singapore2.8M
  2. 2🇺🇸 United States2.5M
  3. 3🇮🇳 India2.4M
  4. 4🇯🇵 Japan865K
  5. 5🇨🇦 Canada456K
  6. 6🇹🇭 Thailand82K
  7. 7🇨🇳 China79K
  8. 8🇭🇰 Hong Kong SAR China49K
  9. 9🇲🇲 Myanmar (Burma)35K

Top Source Countries

  1. 1🇺🇸 United States2.9M
  2. 2🇨🇦 Canada2.6M
  3. 3🇸🇬 Singapore2.4M
  4. 4🇦🇺 Australia315K
  5. 5🇮🇩 Indonesia262K
  6. 6🇭🇰 Hong Kong SAR China146K
  7. 7🇲🇾 Malaysia131K
  8. 8🇵🇦 Panama33K
  9. 9🇳🇿 New Zealand29K

IPv4 transferred across country borders in 2016. Registry logs before mid-2025 do not carry a country for every transfer, so this ranking undercounts some regions.

Largest IPv4 Transfers 2016