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AS numbers

AS8312 ZYLON-AS Bas Smit trading as Zylon

AS8312 is operated by ZYLON-AS Bas Smit trading as Zylon and registered with RIPE NCC (NL) since 2004-11-11.

It announces 9 IPv4 and 1 IPv6 prefixes, 90% of them RPKI valid.

RIPE RIS sees 1 upstream and peer networks and 0 downstream networks next to it.

NameZYLON-AS Bas Smit trading as Zylon
Registry (RIR)RIPE NCC
CountryNetherlands (NL)
Delegated on2004-11-11
Prefixes (IPv4 / IPv6)9 / 1
RPKI valid90% (9 / 10)
Upstreams and peers1
Downstream networks0

Routing health

  • AS8312 announces 9 IPv4 and 1 IPv6 prefixes.
  • 9 of 10 announced prefixes are RPKI valid.
  • 1 announced prefixes are not covered by a ROA of AS8312 (they may have none, or another network’s).
  • One upstream or peer seen (AS31477): an outage there takes the whole network off the internet.

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 10

  • 77.74.48.0/21
  • 185.58.56.0/22
  • 185.213.1.0/24
  • 185.213.2.0/24
  • 185.213.3.0/24
  • 193.16.154.0/24
  • 193.189.149.0/24
  • 193.193.165.0/24
  • 195.210.56.0/23
  • 2a01:310::/32

Upstreams and peers 1

The networks RIPE RIS sees next to AS8312 in BGP paths, the most visible first.

More about AS8312

Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-14 20:41 UTC. The country is where the AS number was registered, not necessarily where the network operates.