Danny McPherson writes in CircleID:

The folks at Renesys pointed out earlier this week some interesting activity surrounding the L-root name server, highlighting some activity that should give us all yet another reason to be concerned about the security and integrity of the Internet DNS.

In short, L-root, operated by ICANN, was renumbered from 198.32.64.12 to 199.7.83.42. ICANN renumbered L-root into this 199.7.83.0/24 space after being allocated a “critical infrastructure” address block from ARIN, the old 198.32.64.0/24 block belongs to Bill Manning and ep.net. ICANN announced their intentions to renumber over six months ago, and stopped using the old address space for the authentic L-root on May 2.

To read the rest of Danny's article in CircleID see www.circleid.com/posts/852211_uprooting_the_dns_root.