When the IPv4 address pool was depleted in 2011, some of the most impacted companies were internet service providers (ISPs) that needed these IPv4 addresses to grow their businesses. Less impacted, at ...

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 February, the news broke that the Internet Assigned Numbers Authority had allocated the final blocks of IPv4 addresses to the five Regional Internet Registries to be distributed to parties within ...

The shortage of IPv4 addresses has reached a critical stage, according to the registries that allocate internet numbers around the world. The Number Resource Organization (NRO), which represents the ...

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, Tim ...

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 ...