IPv4 Transfers April 2016

In April 2016, the five Regional Internet Registries recorded 366 transfers: 3,500,032 IPv4 addresses in 309 blocks, plus 14 IPv6 blocks and 43 AS numbers. 22 transfers moved resources between two registries. Dates are the dates the registry processed the transfer.

IPv4 addresses transferred

3.5M

309 IPv4 blocks

Registry transfers

366

14 IPv6 / 43 ASN

Inter-RIR transfers

38K IPv4 addresses (1%)

Mergers and acquisitions

280 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, April 2016
Registry	Transfers	IPv4 received	Inter-RIR in	Inter-RIR out
ARIN	174	2,860,544	-	37,632
APNIC	36	342,272	-	-
RIPE NCC	156	297,216	37,632	-

Inter-RIR Transfers April 2016

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	-	0	0	0	0
ARIN	38K 22 transfers	-	0	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, April 2016
Prefix length	Addresses per block	Blocks	Share of blocks	IPv4 addresses
/14	262,144	3	1.0%	786,432
/15	131,072	3	1.0%	393,216
/16	65,536	25	8.1%	1,638,400
/17	32,768	2	0.6%	65,536
/18	16,384	10	3.2%	163,840
/19	8,192	19	6.1%	155,648
/20	4,096	29	9.4%	118,784
/21	2,048	41	13.3%	83,968
/22	1,024	54	17.5%	55,296
/23	512	29	9.4%	14,848
/24	256	94	30.4%	24,064

Top Receiving Countries

Top Source Countries

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

Largest IPv4 Transfers April 2016

47.240.0.0/14Transfer · 2016-04-15
Bell-Northern Research
🇨🇦 CA ARIN
→
Alibaba.com LLC
🇺🇸 US ARIN
47.236.0.0/14Transfer · 2016-04-15
Bell-Northern Research
🇨🇦 CA ARIN
→
Alibaba.com LLC
🇺🇸 US ARIN
157.48.0.0/14Transfer · 2016-04-10
Reliance Jio Infocomm Pte.Ltd
🇸🇬 SG APNIC
→
Reliance Jio Infocomm Limited
🇮🇳 IN APNIC
47.252.0.0/15Transfer · 2016-04-15
Bell-Northern Research
🇨🇦 CA ARIN
→
Alibaba.com LLC
🇺🇸 US ARIN
47.250.0.0/15Transfer · 2016-04-15
Bell-Northern Research
🇨🇦 CA ARIN
→
Alibaba.com LLC
🇺🇸 US ARIN
47.244.0.0/15Transfer · 2016-04-15
Bell-Northern Research
🇨🇦 CA ARIN
→
Alibaba.com LLC
🇺🇸 US ARIN
144.121.0.0/16Transfer · 2016-04-29
Weyerhaeuser Company
🇺🇸 US ARIN
→
Lightower Fiber Networks I, LLC
🇺🇸 US ARIN
157.199.0.0/16M&A · 2016-04-29
Healthcare Knowledge Resources Inc.
🇺🇸 US ARIN
→
Truven Health Analytics, Inc.
🇺🇸 US ARIN
155.51.0.0/16M&A · 2016-04-29
Lotus Development Corporation
🇺🇸 US ARIN
→
IBM
🇺🇸 US ARIN
130.103.0.0/16M&A · 2016-04-29
Lotus Development
🇺🇸 US ARIN
→
IBM
🇺🇸 US ARIN
160.106.0.0/16M&A · 2016-04-29
External Affairs and International
🇨🇦 CA ARIN
→
Shared Services Canada
🇨🇦 CA ARIN
158.128.0.0/16M&A · 2016-04-29
External Affairs and International
🇨🇦 CA ARIN
→
Shared Services Canada
🇨🇦 CA ARIN
160.72.0.0/16Transfer · 2016-04-29
Weyerhaeuser Company
🇺🇸 US ARIN
→
Lightower Fiber Networks I, LLC
🇺🇸 US ARIN
142.63.0.0/16M&A · 2016-04-26
British Columbia Telephone Company
🇨🇦 CA ARIN
→
TELUS Communications Inc.
🇨🇦 CA ARIN
170.48.0.0/16M&A · 2016-04-22
Healthsource, Inc.
🇺🇸 US ARIN
→
CIGNA
🇺🇸 US ARIN
168.161.0.0/16M&A · 2016-04-21
Turner Broadcasting System, Inc.
🇺🇸 US ARIN
→
Time Warner Enterprise Infrastructure Services LLC
🇺🇸 US ARIN
47.254.0.0/16Transfer · 2016-04-15
Bell-Northern Research
🇨🇦 CA ARIN
→
Alibaba.com LLC
🇺🇸 US ARIN
47.246.0.0/16Transfer · 2016-04-15
Bell-Northern Research
🇨🇦 CA ARIN
→
Alibaba.com LLC
🇺🇸 US ARIN
47.235.0.0/16Transfer · 2016-04-15
Bell-Northern Research
🇨🇦 CA ARIN
→
Alibaba.com LLC
🇺🇸 US ARIN
47.250.0.0/16Transfer · 2016-04-15
Bell-Northern Research
🇨🇦 CA ARIN
→
Alibaba.com LLC
🇺🇸 US ARIN
91.134.0.0/16Transfer · 2016-04-15
SKKNET.NET Ltd
RIPE NCC
→
OVH SAS
RIPE NCC
165.136.0.0/16M&A · 2016-04-14
Dell, Inc.
🇺🇸 US ARIN
→
Dell Systems Corporation
🇺🇸 US ARIN
160.110.0.0/16M&A · 2016-04-14
Dell, Inc.
🇺🇸 US ARIN
→
Dell Systems Corporation
🇺🇸 US ARIN
160.109.0.0/16M&A · 2016-04-14
Dell, Inc.
🇺🇸 US ARIN
→
Dell Systems Corporation
🇺🇸 US ARIN
155.17.0.0/16M&A · 2016-04-14
Dell, Inc.
🇺🇸 US ARIN
→
Dell Systems Corporation
🇺🇸 US ARIN

Date	Resource	From	To	Type
2016-04-15	47.240.0.0/14	Bell-Northern Research 🇨🇦 CA ARIN	Alibaba.com LLC 🇺🇸 US ARIN	Transfer
2016-04-15	47.236.0.0/14	Bell-Northern Research 🇨🇦 CA ARIN	Alibaba.com LLC 🇺🇸 US ARIN	Transfer
2016-04-10	157.48.0.0/14	Reliance Jio Infocomm Pte.Ltd 🇸🇬 SG APNIC	Reliance Jio Infocomm Limited 🇮🇳 IN APNIC	Transfer
2016-04-15	47.252.0.0/15	Bell-Northern Research 🇨🇦 CA ARIN	Alibaba.com LLC 🇺🇸 US ARIN	Transfer
2016-04-15	47.250.0.0/15	Bell-Northern Research 🇨🇦 CA ARIN	Alibaba.com LLC 🇺🇸 US ARIN	Transfer
2016-04-15	47.244.0.0/15	Bell-Northern Research 🇨🇦 CA ARIN	Alibaba.com LLC 🇺🇸 US ARIN	Transfer
2016-04-29	144.121.0.0/16	Weyerhaeuser Company 🇺🇸 US ARIN	Lightower Fiber Networks I, LLC 🇺🇸 US ARIN	Transfer
2016-04-29	157.199.0.0/16	Healthcare Knowledge Resources Inc. 🇺🇸 US ARIN	Truven Health Analytics, Inc. 🇺🇸 US ARIN	M&A
2016-04-29	155.51.0.0/16	Lotus Development Corporation 🇺🇸 US ARIN	IBM 🇺🇸 US ARIN	M&A
2016-04-29	130.103.0.0/16	Lotus Development 🇺🇸 US ARIN	IBM 🇺🇸 US ARIN	M&A
2016-04-29	160.106.0.0/16	External Affairs and International 🇨🇦 CA ARIN	Shared Services Canada 🇨🇦 CA ARIN	M&A
2016-04-29	158.128.0.0/16	External Affairs and International 🇨🇦 CA ARIN	Shared Services Canada 🇨🇦 CA ARIN	M&A
2016-04-29	160.72.0.0/16	Weyerhaeuser Company 🇺🇸 US ARIN	Lightower Fiber Networks I, LLC 🇺🇸 US ARIN	Transfer
2016-04-26	142.63.0.0/16	British Columbia Telephone Company 🇨🇦 CA ARIN	TELUS Communications Inc. 🇨🇦 CA ARIN	M&A
2016-04-22	170.48.0.0/16	Healthsource, Inc. 🇺🇸 US ARIN	CIGNA 🇺🇸 US ARIN	M&A
2016-04-21	168.161.0.0/16	Turner Broadcasting System, Inc. 🇺🇸 US ARIN	Time Warner Enterprise Infrastructure Services LLC 🇺🇸 US ARIN	M&A
2016-04-15	47.254.0.0/16	Bell-Northern Research 🇨🇦 CA ARIN	Alibaba.com LLC 🇺🇸 US ARIN	Transfer
2016-04-15	47.246.0.0/16	Bell-Northern Research 🇨🇦 CA ARIN	Alibaba.com LLC 🇺🇸 US ARIN	Transfer
2016-04-15	47.235.0.0/16	Bell-Northern Research 🇨🇦 CA ARIN	Alibaba.com LLC 🇺🇸 US ARIN	Transfer
2016-04-15	47.250.0.0/16	Bell-Northern Research 🇨🇦 CA ARIN	Alibaba.com LLC 🇺🇸 US ARIN	Transfer
2016-04-15	91.134.0.0/16	SKKNET.NET Ltd RIPE NCC	OVH SAS RIPE NCC	Transfer
2016-04-14	165.136.0.0/16	Dell, Inc. 🇺🇸 US ARIN	Dell Systems Corporation 🇺🇸 US ARIN	M&A
2016-04-14	160.110.0.0/16	Dell, Inc. 🇺🇸 US ARIN	Dell Systems Corporation 🇺🇸 US ARIN	M&A
2016-04-14	160.109.0.0/16	Dell, Inc. 🇺🇸 US ARIN	Dell Systems Corporation 🇺🇸 US ARIN	M&A
2016-04-14	155.17.0.0/16	Dell, Inc. 🇺🇸 US ARIN	Dell Systems Corporation 🇺🇸 US ARIN	M&A