Data as of Nov 10, 2026
Autonomous system

AS31817

Progress Software Corp - CSG

Announces 1,024 addresses in 2 prefixes. None of it is anonymizer space.

Type
Business
US

Announced prefixes

Arrived
PrefixTypeHolderRPKI
131.239.30.0/23
since May 2009
BusinessZayo Bandwidth
156.21.0.0/23
since May 2021
BusinessProgress Software

Network & history

Routing patterns

How its announcements have moved

Arrivals

Year each prefix's current origin began announcing it