Tag Archives: American Registry for Internet Numbers

ARIN Allocates Last Of North America’s IPv4 Addresses

The last of North America’s IPv4 addresses has been allocated from the “free pool”, the body responsible for allocating internet protocol addresses in North America, the American Registry for Internet Numbers (ARIN) announced.There are addresses that will continue to become available, and ARIN will continue to process and approve requests for IPv4 address blocks. Those approved requests may be fulfilled via the Wait List for Unmet IPv4 Requests, or through the IPv4 Transfer Market.On the transfer market, there are reports that IPv4 addresses have been selling for $10-12 each according to IDG.But the depletion of IPv4 addresses is spurring on IPv6 adoption. The latest State of the Internet report from Akamai shows that in the second quarter of 2015 “reversing the trend seen in the first quarter, the number of unique IPv4 addresses worldwide connecting to Akamai dropped by about 8.6 million in the second quarter. Six of the top 10 countries saw a quarterly decline in unique IPv4 address counts in the second quarter, compared with three in the previous quarter.”On IPv6 growth, the report shows “European countries continued to dominate the 10 countries/regions with the largest percentage of content requests made to Akamai over IPv6 in the second quarter of 2015. Similar to previous quarters, Belgium maintained its clear lead, with 38% of content requests being made over IPv6. Switzerland (23%) saw the largest increase, enjoying a 168% jump over the previous quarter, moving into second place globally, with nearly a quarter of content requests coming over IPv6. As with the previous quarter, the only two non-European counties among the top 10 were the U.S. and Peru, both of which saw significant double-digit quarterly improvements to adoption rates of 19% and 17%, respectively.”Further, BT announced that by the end of 2016 its entire network will be able to use IPv6 according to BBC News and in India, the Kerala government has rolled out a roadmap to implement Internet Protocol version 6 (IPv6) across the state, reported the Financial Express.

North America Runs Out Of New IPv4 Addresses

The need to adopt IPv6 became a little more urgent this week when ARIN was unable to meet a request for IPv4 addresses.The request, the American Registry for Internet Numbers said, was larger than the available inventory in the regional IPv4 free pool.”If you take a smaller block, you can’t come back for more address space for 90 days,” John Curran, CEO of ARIN, told ArsTechnica. “We currently have nearly 500 small blocks remaining, but we handle 300 to 400 requests per month, [so] those remaining small blocks are going to last between two and four weeks.”ARIN allocates addresses for Canada, the USA and North Atlantic and Caribbean islands, has now joined its counterparts being unable to meet demand for IPv4 addresses. It has also seen companies willing to spend large amounts to purchase IPv4 addresses. For example, back in 2011 Microsoft paid Nortel $7.5m for 666,624 IPv4 addresses.ARIN still has limited amounts of IPv4 address space available in smaller block sizes and they encourage customers to monitor the IPv4 Inventory Counter on the ARIN homepage and the breakdown of the remaining IPv4 inventory found on their IPv4 Depletion page:
https://www.arin.net/resources/request/ipv4_countdown.htmlOrganisations needing larger amounts of address space are encouraged to make use of the IPv4 transfer market for those needs. ARIN is also reminding organisations of the ample availability of IPv6 address space, and encourages organisations to evaluate IPv6 address space for their ongoing public internet network activities.

ARIN 35 Registration Now Open

ARIN logoRegistration is now open for the ARIN 35 Public Policy and Members Meeting, 12-15 April 2015 at the JW Marriott San Francisco Union Square.

ARIN holds open, biannual Public Policy and Members Meetings where attendees gather to discuss draft Internet number resource policies, network with colleagues, and attend workshops and tutorials. For information about ARIN 35, including hotel and travel information, visit:


You can view current policy Draft Policies and Proposals that may be discussed at this meeting at:

ARIN will offer an open webcast and live transcript of the full meeting. Registered remote participants will have access to a meeting chat room where they can submit comments and questions to the discussions during the meeting. So register to attend in person or participate remotely today! Visit:

Want to make this your first ARIN meeting, but attendance doesn’t fit in your budget? Apply for the ARIN Fellowship Program at:

A special room rate for meeting attendees of $259.00 USD single/double occupancy is available until 20 March. The room rate is subject to all applicable taxes, fees and other charges as they may apply. Space is limited, so be sure to reserve your room early for the attendee discount.

Support the ARIN Community

Do you want to be part of making ARIN 35 the best meeting possible? Sponsorship opportunities are still available! Contact us at meetings@arin.net or by using our online contact form at:

Additional information about ARIN 35 will be posted on the meeting website as we get closer to the meeting, so check back often!


Communications and Member Services
American Registry for Internet Numbers (ARIN)

This ARIN announcement was sourced from:

ARIN Enters Phase Four of the IPv4 Countdown Plan

ARIN logo[announcement] ARIN is down to its final /8 of available space in its inventory and has moved into Phase Four of its IPv4 Countdown Plan.  All IPv4 requests are now subject to Countdown Plan processes, so please review the following details carefully.

All IPv4 requests will be processed on a “First in, First out” basis, and all requests of any size will be subject to team review, and requests for /15 or larger will require department director approval.  ARIN’s resource analysts will respond to tickets as they appear chronologically in the queue. Each ticket response is treated as an individual transaction, so the completion time of a single request may vary based on customer response times and the number of requests waiting in the queue. Because each correspondence will be processed in sequence, it is possible that response times may exceed our usual two-day turnaround.

The hold period for returned, reclaimed, and revoked blocks is now reduced to 60 days. All returned, revoked, and reclaimed IPv4 address space will go back into the available pool when the 60 day period has expired. Staff will continue to check routing/filtering on space being reissued and will notify recipients if there are issues.

When a request is approved, the recipient will have 60 days to complete payment and/or an RSA. On the 61st day, the address space will be released back to the available pool if payment and RSA are not completed.

We encourage you to visit the IPv4 Countdown Phase Four page at:

ARIN may experience situations where it can no longer fulfill qualifying IPv4 requests due to a lack of inventory of the desired block size.  At that time, the requester may opt to accept the largest available block size or they may ask to be placed on the Waiting List for Unmet Requests.  Full details about this process are available at:

This ARIN announcement was sourced from:

Montevideo Statement on the Future of Internet Cooperation

The leaders of organizations responsible for coordination of the Internet technical infrastructure globally have met in Montevideo, Uruguay, to consider current issues affecting the future of the Internet.

The Internet and World Wide Web have brought major benefits in social and economic development worldwide. Both have been built and governed in the public interest through unique mechanisms for global multistakeholder Internet cooperation, which have been intrinsic to their success. The leaders discussed the clear need to continually strengthen and evolve these mechanisms, in truly substantial ways, to be able to address emerging issues faced by stakeholders in the Internet.

In this sense:

  • They reinforced the importance of globally coherent Internet operations, and warned against Internet fragmentation at a national level. They expressed strong concern over the undermining of the trust and confidence of Internet users globally due to recent revelations of pervasive monitoring and surveillance.
  • They identified the need for ongoing effort to address Internet Governance challenges, and agreed to catalyze community-wide efforts towards the evolution of global multistakeholder Internet cooperation.
  • They called for accelerating the globalization of ICANN and IANA functions, towards an environment in which all stakeholders, including all governments, participate on an equal footing.
  • They also called for the transition to IPv6 to remain a top priority globally. In particular Internet content providers must serve content with both IPv4 and IPv6 services, in order to be fully reachable on the global Internet.

Adiel A. Akplogan, CEO
African Network Information Center (AFRINIC)

John Curran, CEO
American Registry for Internet Numbers (ARIN)

Paul Wilson, Director General
Asia-Pacific Network Information Centre (APNIC)

Russ Housley, Chair
Internet Architecture Board (IAB)

Fadi Chehadé, President and CEO
Internet Corporation for Assigned Names and Numbers (ICANN)

Jari Arkko, Chair
Internet Engineering Task Force (IETF)

Lynn St. Amour, President and CEO
Internet Society (ISOC)

Raúl Echeberría, CEO
Latin America and Caribbean Internet Addresses Registry (LACNIC)

Axel Pawlik, Managing Director
Réseaux IP Européens Network Coordination Centre (RIPE NCC)

Jeff Jaffe, CEO
World Wide Web Consortium (W3C)


This announcement was sourced from the ICANN web site at:

IPv6 is the Only Path to Continued Internet Growth

With 94.5% of IPv4 addresses already allocated and the remaining 5.5% expected to be allocated by mid-2011, a panel of industry experts, including John Curran, president and CEO of ARIN, explained that IPv6 is the only path to continued Internet growth at a recent NTIA IPv6 workshop.The panellists also agreed that IPv6 is necessary for all future efforts around cloud computing, smart grid, mobility, and the Internet of Things.To read the full news release from ARIN, with all findings and deliverables, see below.ARIN details key findings from NTIA IPv6 Workshop [news release]
ARIN President and CEO among panel of experts agreeing that IPv6 is necessary for future Internet growth.
U.S. Government highlights additional steps agencies will take to prepare.
Chantilly, VA, October 4, 2010 – The American Registry for Internet Numbers (ARIN), a nonprofit association that manages the distribution of IP addresses and other Internet number resources, announced today key findings from the NTIA IPv6 Workshop held on September 28, 2010. The workshop began with a panel discussion moderated by Aneesh Chopra, Chief Technology Officer for the United States, which brought together experts including John Curran, President and CEO of ARIN, to highlight the necessary steps American businesses must take to assure IPv6 adoption.With 94.5% of IPv4 addresses already allocated and the remaining 5.5% expected to be allocated by mid-2011, the panel of industry experts explained that IPv6 is the only path to continued Internet growth. The panelists also agreed that IPv6 is necessary for all future efforts around cloud computing, smart grid, mobility, and the Internet of Things.ARIN hopes that the workshop will encourage businesses that provide services over the Internet, for example via a website, to make the necessary IPv6 preparations sooner rather than later. Steps that businesses can take include:

  • Replacing any outdated equipment and software with IPv6-ready devices and applications
  • Encouraging hardware and application vendors to support IPv6, and specifically including IPv6 support in RFPs and contracts
  • Sending IT staff to IPv6 training seminars and encouraging them to read forums like the ARIN IPv6 Wiki
  • Talking to ISPs about getting IPv6 service or about tunneling IPv6 over IPv4

Other key outcomes from the NTIA industry panel:

  • Chopra called out three deliverables that industry experts should help create to provide clarity for the enterprise industry, and to help businesses with their IPv6 transition.
  • Create a template for enterprise board members to evaluate adoption risks and keep up-to-date on their organizations’ IPv6 adoption status
  • Create a template for engineers that includes the right questions to ask vendors and any training activities they should take part in
  • Create a transparency dashboard so both domestic and international enterprises and governments can see how the United States, as a whole, is progressing toward IPv6 adoption

Jason Livingood, Executive Director for Comcast highlighted some findings from Comcast’s recent IPv6 trials. Native IPv4 and IPv6 dual-stack networks have the best access and are ultimately less expensive to set up and operate.Following the industry panel, Chief Information Officer for the United States, Vivek Kundra, led a government panel detailing the U.S. Government’s commitment to the operational deployment and use of IPv6. Mr. Kundra also announced additional steps <www.cio.gov/Documents/IPv6MemoFINAL.pdf> government agencies must take to expedite the operational deployment and use of IPv6. These steps include:

  • Upgrade public/external facing servers and services (e.g. web, email, DNS, ISP services, etc) to operationally use native IPv6 by the end of FY 2012
  • Upgrade internal client applications that communicate with public Internet servers and supporting enterprise networks to operationally use native IPv6 by the end of FY 2014
  • Designate an IPv6 Transition Manager by October 30, 2010, to serve as the person responsible for leading the agency’s IPv6 transition activities, and liaison with the wider Federal IPv6 effort as necessary
  • Ensure agency procurements of networked IT comply with FAR requirements for use of the USGv6 Profile and Test Program for the completeness and quality of their IPv6 capabilities

“The good news is this part of the ecosystem is up and running. We have the protocol people need. We have the administrative infrastructure to issue IPv6 addresses,” added Curran. “I’ve been informing Internet backbone companies, content providers, enterprises, and governments that we’re going to be running out of IPv4 addresses for 15 years. It’s now taking those plans and realizing them promptly over the next 18 months that will be essential for success.”About the American Registry for Internet Numbers (ARIN)
ARIN is the nonprofit corporation that manages the distribution of Internet number resources – IPv4, IPv6, and Autonomous System numbers – in its service region, which includes Canada, many Caribbean and North Atlantic islands, and the United States. More information on IPv6 adoption is available at www.getipv6.info and www.arin.net.