2015 Year in Review

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2015 was an exciting here at ARIN. While we are gearing up for 2016, I thought it would be interesting to recap this eventful year. I am fairly certain you heard that we ran out of IPv4 addresses in September. Even though we had been preparing (and informing the community) about this for years, it was a big deal for us when it happened.

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So Many Tweets, So Little IPv4

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Since we announced that ARIN has zero IPv4 addresses remaining in inventory, we’ve heard a lot of social chatter around this historic event for the Internet. In fact, there have been thousands of tweets over the past few days – everything from the humorous to the serious. We couldn’t possibly share them all, but here are a few that made us crack a smile

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ARIN Reaches IPv4 Depletion

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ARIN’s IPv4 free pool has depleted. This is an important milestone for the Internet as now we now usher in the age of IPv6. As previously described in this blog series, ARIN has been placing /24s on hold for organizations over the past few months. This occurred when an organization qualified for a larger block size, but was given the option to accept our only available block size (/24) available at the time.

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IPv4 Depletion Update

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Earlier this week ARIN and the other RIRs received a distribution of IPv4 address space from the IANA in accordance with their Global Policy for Post Exhaustion IPv4 Allocation Mechanisms. ARIN was issued a total of a /14 worth of IPv4 address space composed of one /15 block and two /16 blocks.

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Tag This: IPv4 Runout

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With less than 45K IPv4 addresses remaining in the ARIN inventory, IPv4 depletion here at ARIN is only weeks away. We thought it’d be fun to get your ideas about the tag line we should use when ARIN hits IPv4 runout. Maybe we’ll even take you up on a few of these. Here’s what you came up with so far

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Breaking down ARIN’s remaining IPv4 Pool

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At the time of this post, there is only .15 of a /8 remaining in the ARIN IPv4 free pool. The largest prefix that remains available is a /11. Within days, that /11 will either be issued to a qualifying organization, or broken down to make smaller prefixes available for organizations who have qualified for a block size that falls between a /11 and the next available block size in inventory.

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IPv4 Depletion Status at ARIN

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What happens after ARIN depletes its free pool of IPv4 address space? Will there be a Phase 5 added to the IPv4 Countdown Plan? Is the IPv4 inventory counter always accurate? These are just some of the questions we’ve been hearing in recent weeks. We understand that IPv4 depletion is causing confusion and uncertainty, so we’d like to try address some of these common questions and provide some additional information on the current status of IPv4 run-out at ARIN.

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