There aren’t many UDRP proceedings involving numeric domain names. I don’t know of an easy way to search for numeric domain UDRPs, so I can’t say how many have been filed, but I don’t really know of many off the top of my head.
This afternoon, I noticed a company called “Cube Limited” filed a UDRP at the World Intellectual Property Organization (WIPO) against 8 numeric domain names. The UDRP case is WIPO Case D2015-2206.
The domain names are all 6n.com domains, and include the following:
I did Whois searches on some of these domain names, and they all appear to have been registered in 2014. It looks like they are registered at Dynadot.
Numeric domain names like these, especially with “88” in them, have been selling regularly at increasing prices during the last several months. I wouldn’t venture a guess about what these domain names are worth though.
I am not exactly sure what is going on here or how the complainant will be able to prove the 3 elements of the UDRP, but it will be interesting to see how this UDRP turns out.