[outages] .us TLD issues?

Been having issues resolving .us domains since about 12:20 Pacific from Dallas/San Jose/San Francisco. Seems to be coming back slowly, DDOS maybe? $ nslookup neustar.us ;; connection timed out; trying next origin ;; connection timed out; no servers could be reached $ whois neustar.us [Querying whois.nic.us] [whois.nic.us: Temporary failure in name resolution] [Unable to connect to remote host]