hijacking of 128.255.192.0/22

Tue Mar 20 17:35:53 UTC 2018

Something apparently in Brazil is hijacking 128.255.192.0/22, part of 
128.255.0.0/16 which is held by the University of Iowa.  AS 263971 is 
announcing 128.255.192.0/22 which Hurricane Electric is accepting & 
propagating.  None of that has any authorization.

I can't find any decent contact information for the originating entity, so I 
have reported it to abuse at he.net, but it'd be fabulous if some HE folks 
listening here could whack the hijacking faster than the abuse channels will 
get to it.  Also useful would be some functional contact for AS263971.

Any help will be appreciated.

________________________________________________________________________
Jay Ford, Network Engineering Group, Information Technology Services
University of Iowa, Iowa City, IA 52242
email: jay-ford at uiowa.edu, phone: 319-335-5555