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AS numbers

AS19663 CASS INFORMATION SYSTEMS

AS19663 is operated by CASS INFORMATION SYSTEMS and registered with ARIN (US) since 2001-01-31.

It announces 2 IPv4 and 0 IPv6 prefixes, 0% of them RPKI valid.

RIPE RIS sees 2 upstream and peer networks and 0 downstream networks next to it.

NameCASS INFORMATION SYSTEMS
Registry handleCASS-STL
Registry (RIR)ARIN
CountryUnited States (US)
Delegated on2001-01-31
Prefixes (IPv4 / IPv6)2 / 0
RPKI valid0% (0 / 2)
Upstreams and peers2
Downstream networks0

Routing health

  • AS19663 announces 2 IPv4 and 0 IPv6 prefixes.
  • No IPv6 prefixes announced.
  • 2 announced prefixes are not covered by a ROA of AS19663 (they may have none, or another network’s).
  • 2 upstreams and peers, 0 downstream networks seen.

For every check with the fix (IRR route objects, the RPKI state of each route, reverse DNS and the registration), run the full network report.

Announced prefixes 2

  • 12.147.44.0/24
  • 192.69.141.0/24

Upstreams and peers 2

The networks RIPE RIS sees next to AS19663 in BGP paths, the most visible first.

More about AS19663

Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-14 09:01 UTC. The country is where the AS number was registered, not necessarily where the network operates.