Data as of Nov 7, 2026
Autonomous system

AS400523

InterSystems Corporation

Announces 1,024 addresses in 5 prefixes. None of it is anonymizer space.

Type
Business
US

Announced prefixes

Arrived
PrefixTypeHolderRPKI
64.6.36.0/23
since Jan 2026
Business
64.6.36.0/24
since Nov 2024
Business
64.6.37.0/24
since Apr 2025
Business
128.177.43.0/24
since Aug 2025
HostingZayo Bandwidth
208.185.132.0/24
since Aug 2025
BusinessZayo Bandwidth

Network & history

The space it routes itself

Address share by type

Routing patterns

How its announcements have moved

Arrivals

Year each prefix's current origin began announcing it