The mailing list for the North American Network Operators' Group discusses Internet infrastructure issues like routing, IP address allocation, and containing malicious activity. This morning there was another message:

We are heartbroken to report that our colleague — our mentor, friend, and conscience — David J. Farber passed away suddenly at his home in Roppongi, Tokyo. He left us on Saturday, Feb. 7, 2026, at the too-young age of 91...

Dave's career began with his education at Stevens Institute of Technology, which he loved deeply and served as a Trustee. He joined the legendary Bell Labs during its heyday, and worked at the Rand Corporation. Along the way, among countless other activit...