What is IPv4 and Why Does it Matter?

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IPv4, or Internet Protocol version 4, is a set of rules that allows devices, like computers and phones, to exchange data on the Internet. Each device and domain connected to the Internet is assigned a unique number, called an IP address. These addresses ensure data is routed to the correct device.     IPv4 addresses are 32-bit numbers written with … Read More

Everything You Need to Know About IPv4 vs. IPv6

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IPV4 vs IPV6 - Pros & Cons

The “IP” in IPv4 and IPv6 stands for Internet Protocol, which is a set of rules that determine how devices transmit data packets across the Internet. Internet Protocol also assigns a unique address to each device on the web. These addresses ensure data packets are routed to the correct device.  What is IPv4? IPv4 or Internet Protocol Version 4 is … Read More

IP Blocklist and Blocklist Removal

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Everyone hates spam. Even worse is malware—something that infects your computer and sends spam out to you and others or tries to hack into systems. In response to these problems, many people began to maintain lists recording who generates spam and malware. An “IP blocklist” is used by most mail servers and some firewalls as a step in deciding whether … Read More

RPKI – today or tomorrow?

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By Jan Zorz  |  May 14, 2020   Resource Public Key Infrastructure (RPKI) is a mouthful. Essentially, RPKI ensures that the network saying, “We are the place to send traffic for network A.B.C.D” really is the right place. It is a way of improving the security of the Border Gateway Protocol (BGP), which uses the Autonomous System Number (ASN) to … Read More

The Benefits and Risks of Leasing IPv4 Space

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IPv4.Global is beginning to lease IPv4 addresses, starting with a /16 registered in ARIN available for a long-term lease. With address prices rising, the reasons you may want to become a lessor are clear: extended predictable revenue. Leasing creates an opportunity to monetize IP addresses and sell an IP block for a higher price in the future versus in the … Read More

US Government Plan to Move to IPv6-only

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On March 2, 2020, the U.S. Office of Management and Budget (OMB) issued a request for comments (RFC) to a memo outlining stages to move to IPv6-only: The memo includes certain migration milestones: At least 20% of IP-enabled assets on Federal networks are IPv6-only by the end of FY 2023; At least 50% of IP-enabled assets on Federal networks are … Read More

2019 IPv4 Address Market Roundup

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With the start of 2020, it’s a good time to review performance of the IPv4 market over the course of 2019. Read on for our full perspective, but if you’re interested in tracking prices, we have a new transaction ticker on IPv4.Global, with a plug-in coming. Looking at data from our online marketplace, prices are off their peaks for the … Read More

AFRINIC Enters IPv4 Runout Phase 2

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AFRINIC has announced that they nearly run out of IPv4 addresses. They now have less than a /11 of address space available, or about 2 million addresses. From now on, they will allocate IP blocks no larger than /22 (1,000 IP addresses), based on whatever an applicant will use in the next eight months.  Although there is no restriction on … Read More

US Federal CIOs Asking about IPv6-only

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Federal CIOs Asking about IPv6-Only In a largely overlooked news item a few weeks ago, Federal CIOs asked for advice on transitioning to IPv6-only: The Federal CIO Council is performing market research on evolving Federal networks and information services to IPv6-only systems. ACT-IAC is facilitating conversations with industry to identify significant barriers, risks and opportunities for innovation that can be foreseen … Read More

ARIN Waiting List Filled

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ARIN has announced that they have met all of the remaining requests on their IPv4 waiting list, and still have addresses left over. Since they have more, they’ll keep distributing address space to new waiting list participants until they again run out. Remember that earlier in 2019, ARIN found that there were fraudulent applications on the waiting list and suspended … Read More