The current crop of Internet addresses could start to disappear this week if a regional Internet registry makes one more request for two blocks of addresses. APNIC (Asia Pacific Network Information ...

As we run out of IPv4 address space, is it time to create an exchange for trading unused address blocks? Ars contributors Iljitsch van Beijnum and Timothy Lee tackle the issue. In this article, ...

A total of 33.6 million addresses are on their way to their ultimate users on the Net--meaning the last blocks of IPv4 addresses will be allocated soon. IPv6, hurry up, would ya? Stephen Shankland ...

We just saw that the mask determines where the boundary between the network and host portions of the IP address lies. This boundary is important: If it is set too far to the right, there are lots of ...

In addition to IPv4 (often written as just IP), there is IP version 6 (IPv6). IPv6 was developed as IPng (“IP:The Next Generation” because the developers were supposedly fans of the TV show “Star Trek ...

The not-for-profit organization responsible for allocating and registering IP addresses across 76 countries in Europe, the Middle East and parts of Central Asia, the RIPE Network Coordination Centre ...

A vibrant market for buying and selling IPv4 addresses is emerging, and policymakers are clarifying the rules associated with how network operators can monetize this precious Internet addressing ...

In February 2011, the global Internet Assigned Numbers Authority (IANA) allocated the last blocks of IPv4 address space to the five regional Internet registries. At the time, experts warned that ...

In hindsight, we reached peak IPv4 two years ago. The good news is that IPv6 is doing very well—but not nearly well enough. Is the IPv6 glass 1 percent full or 99 percent empty? “Hi, I’d like to sign ...