IPv4 Transfers July 2017

In July 2017, the five Regional Internet Registries recorded 784 transfers: 6,113,536 IPv4 addresses in 632 blocks, plus 32 IPv6 blocks and 120 AS numbers. 15 transfers moved resources between two registries. Dates are the dates the registry processed the transfer.

IPv4 addresses transferred

6.1M

632 IPv4 blocks

Registry transfers

784

32 IPv6 / 120 ASN

Inter-RIR transfers

69K IPv4 addresses (1%)

Mergers and acquisitions

365

419 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 2017
Registry	Transfers	IPv4 received	Inter-RIR in	Inter-RIR out
ARIN	444	5,393,920	768	59,648
RIPE NCC	224	441,600	40,960	8,960
APNIC	116	278,016	26,880	-

Inter-RIR Transfers July 2017

IPv4 addresses moved from one registry to another. All inter-RIR transfers

IPv4 addresses transferred between Regional Internet Registries
From ↓ / To →	RIPE NCC	ARIN	APNIC	LACNIC	AFRINIC
RIPE NCC	-	768 2 transfers	8,192 2 transfers	0	0
ARIN	41K 2 transfers	-	19K 9 transfers	0	0
APNIC	0	0	-	0	0
LACNIC	0	0	0	-	0
AFRINIC	0	0	0	0	-

IPv4 Transfers by Block Size

Number of transferred IPv4 blocks per prefix length.

IPv4 transfers by prefix length, July 2017
Prefix length	Addresses per block	Blocks	Share of blocks	IPv4 addresses
/14	262,144	1	0.2%	262,144
/15	131,072	2	0.3%	262,144
/16	65,536	65	10.3%	4,259,840
/17	32,768	8	1.3%	262,144
/18	16,384	11	1.7%	180,224
/19	8,192	37	5.9%	303,104
/20	4,096	60	9.5%	245,760
/21	2,048	45	7.1%	92,160
/22	1,024	167	26.4%	171,008
/23	512	57	9.0%	29,184
/24	256	179	28.3%	45,824

Top Receiving Countries

Top Source Countries

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

Largest IPv4 Transfers July 2017

131.136.0.0/14M&A · 2017-07-13
Department of National Defence
🇨🇦 CA ARIN
→
Shared Services Canada
🇨🇦 CA ARIN
131.140.0.0/15M&A · 2017-07-13
Department of National Defence
🇨🇦 CA ARIN
→
Shared Services Canada
🇨🇦 CA ARIN
131.134.0.0/15M&A · 2017-07-13
Department of National Defence
🇨🇦 CA ARIN
→
Shared Services Canada
🇨🇦 CA ARIN
167.8.0.0/16M&A · 2017-07-31
Gannett Co. Inc.
🇺🇸 US ARIN
→
TEGNA Inc.
🇺🇸 US ARIN
129.28.0.0/16M&A · 2017-07-31
Software Productivity Consortium, Inc
🇺🇸 US ARIN
→
SSCI
🇺🇸 US ARIN
131.93.0.0/16Transfer · 2017-07-26
St. Joseph's College
🇺🇸 US ARIN
→
Charter Communications
🇺🇸 US ARIN
161.189.0.0/16M&A · 2017-07-25
Hills Department Stores
🇺🇸 US ARIN
→
Oak Point Partners Inc
🇺🇸 US ARIN
138.69.0.0/16M&A · 2017-07-25
ACS State and Local Solutions
🇺🇸 US ARIN
→
Conduent Business Services, LLC
🇺🇸 US ARIN
205.202.0.0/16M&A · 2017-07-21
University of Nebraska
🇺🇸 US ARIN
→
Network Nebraska
🇺🇸 US ARIN
204.234.0.0/16M&A · 2017-07-21
University of Nebraska
🇺🇸 US ARIN
→
Network Nebraska
🇺🇸 US ARIN
162.127.0.0/16M&A · 2017-07-21
University of Nebraska
🇺🇸 US ARIN
→
Network Nebraska
🇺🇸 US ARIN
170.176.0.0/16M&A · 2017-07-20
Ralcorp Holdings, Inc.
🇺🇸 US ARIN
→
Treehouse Foods, Inc.
🇺🇸 US ARIN
116.85.0.0/16Transfer · 2017-07-19
China Internet Network Information Center/KPMNET
🇨🇳 CN APNIC
→
China Internet Network Information Center/XJKJ
🇨🇳 CN APNIC
147.158.0.0/16Transfer · 2017-07-18
AgResearch
🇳🇿 NZ APNIC
→
Tmnet, Telekom Malaysia Bhd.
🇲🇾 MY APNIC
159.98.0.0/16M&A · 2017-07-17
IDB Communications Group, Inc.
🇺🇸 US ARIN
→
MCI Communications Services, Inc. d/b/a Verizon Business
🇺🇸 US ARIN
132.246.0.0/16M&A · 2017-07-13
National Research Council of Canada
🇨🇦 CA ARIN
→
Shared Services Canada
🇨🇦 CA ARIN
142.212.0.0/16M&A · 2017-07-13
Indian and Northern Affairs
🇨🇦 CA ARIN
→
Shared Services Canada
🇨🇦 CA ARIN
142.208.0.0/16M&A · 2017-07-13
Department of Indian and Northern Affairs Canada
🇨🇦 CA ARIN
→
Shared Services Canada
🇨🇦 CA ARIN
167.33.0.0/16M&A · 2017-07-13
Canadian Heritage
🇨🇦 CA ARIN
→
Shared Services Canada
🇨🇦 CA ARIN
142.206.0.0/16M&A · 2017-07-13
Statistics Canada
🇨🇦 CA ARIN
→
Shared Services Canada
🇨🇦 CA ARIN
142.191.0.0/16M&A · 2017-07-13
Correctional Services Canada
🇨🇦 CA ARIN
→
Shared Services Canada
🇨🇦 CA ARIN
142.74.0.0/16M&A · 2017-07-13
Canadian Space Agency
🇨🇦 CA ARIN
→
Shared Services Canada
🇨🇦 CA ARIN
138.214.0.0/16M&A · 2017-07-13
Canadian Space Agency
🇨🇦 CA ARIN
→
Shared Services Canada
🇨🇦 CA ARIN
142.2.0.0/16M&A · 2017-07-13
Bedford Institute of Oceanography
🇨🇦 CA ARIN
→
Shared Services Canada
🇨🇦 CA ARIN
142.130.0.0/16M&A · 2017-07-13
Fisheries and Oceans Canada
🇨🇦 CA ARIN
→
Shared Services Canada
🇨🇦 CA ARIN

Date	Resource	From	To	Type
2017-07-13	131.136.0.0/14	Department of National Defence 🇨🇦 CA ARIN	Shared Services Canada 🇨🇦 CA ARIN	M&A
2017-07-13	131.140.0.0/15	Department of National Defence 🇨🇦 CA ARIN	Shared Services Canada 🇨🇦 CA ARIN	M&A
2017-07-13	131.134.0.0/15	Department of National Defence 🇨🇦 CA ARIN	Shared Services Canada 🇨🇦 CA ARIN	M&A
2017-07-31	167.8.0.0/16	Gannett Co. Inc. 🇺🇸 US ARIN	TEGNA Inc. 🇺🇸 US ARIN	M&A
2017-07-31	129.28.0.0/16	Software Productivity Consortium, Inc 🇺🇸 US ARIN	SSCI 🇺🇸 US ARIN	M&A
2017-07-26	131.93.0.0/16	St. Joseph's College 🇺🇸 US ARIN	Charter Communications 🇺🇸 US ARIN	Transfer
2017-07-25	161.189.0.0/16	Hills Department Stores 🇺🇸 US ARIN	Oak Point Partners Inc 🇺🇸 US ARIN	M&A
2017-07-25	138.69.0.0/16	ACS State and Local Solutions 🇺🇸 US ARIN	Conduent Business Services, LLC 🇺🇸 US ARIN	M&A
2017-07-21	205.202.0.0/16	University of Nebraska 🇺🇸 US ARIN	Network Nebraska 🇺🇸 US ARIN	M&A
2017-07-21	204.234.0.0/16	University of Nebraska 🇺🇸 US ARIN	Network Nebraska 🇺🇸 US ARIN	M&A
2017-07-21	162.127.0.0/16	University of Nebraska 🇺🇸 US ARIN	Network Nebraska 🇺🇸 US ARIN	M&A
2017-07-20	170.176.0.0/16	Ralcorp Holdings, Inc. 🇺🇸 US ARIN	Treehouse Foods, Inc. 🇺🇸 US ARIN	M&A
2017-07-19	116.85.0.0/16	China Internet Network Information Center/KPMNET 🇨🇳 CN APNIC	China Internet Network Information Center/XJKJ 🇨🇳 CN APNIC	Transfer
2017-07-18	147.158.0.0/16	AgResearch 🇳🇿 NZ APNIC	Tmnet, Telekom Malaysia Bhd. 🇲🇾 MY APNIC	Transfer
2017-07-17	159.98.0.0/16	IDB Communications Group, Inc. 🇺🇸 US ARIN	MCI Communications Services, Inc. d/b/a Verizon Business 🇺🇸 US ARIN	M&A
2017-07-13	132.246.0.0/16	National Research Council of Canada 🇨🇦 CA ARIN	Shared Services Canada 🇨🇦 CA ARIN	M&A
2017-07-13	142.212.0.0/16	Indian and Northern Affairs 🇨🇦 CA ARIN	Shared Services Canada 🇨🇦 CA ARIN	M&A
2017-07-13	142.208.0.0/16	Department of Indian and Northern Affairs Canada 🇨🇦 CA ARIN	Shared Services Canada 🇨🇦 CA ARIN	M&A
2017-07-13	167.33.0.0/16	Canadian Heritage 🇨🇦 CA ARIN	Shared Services Canada 🇨🇦 CA ARIN	M&A
2017-07-13	142.206.0.0/16	Statistics Canada 🇨🇦 CA ARIN	Shared Services Canada 🇨🇦 CA ARIN	M&A
2017-07-13	142.191.0.0/16	Correctional Services Canada 🇨🇦 CA ARIN	Shared Services Canada 🇨🇦 CA ARIN	M&A
2017-07-13	142.74.0.0/16	Canadian Space Agency 🇨🇦 CA ARIN	Shared Services Canada 🇨🇦 CA ARIN	M&A
2017-07-13	138.214.0.0/16	Canadian Space Agency 🇨🇦 CA ARIN	Shared Services Canada 🇨🇦 CA ARIN	M&A
2017-07-13	142.2.0.0/16	Bedford Institute of Oceanography 🇨🇦 CA ARIN	Shared Services Canada 🇨🇦 CA ARIN	M&A
2017-07-13	142.130.0.0/16	Fisheries and Oceans Canada 🇨🇦 CA ARIN	Shared Services Canada 🇨🇦 CA ARIN	M&A