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AS numbers

AS28919 Stadtwerke Kufstein

AS28919 is operated by Stadtwerke Kufstein and registered with RIPE NCC (AT) since 2003-04-03.

It announces 20 IPv4 and 5 IPv6 prefixes, 96% of them RPKI valid.

RIPE RIS sees 51 upstream and peer networks and 1 downstream networks next to it.

PeeringDB lists it as a Cable/DSL/ISP network at 2 internet exchanges and 1 facility. Its peering policy is open.

NameStadtwerke Kufstein
Registry (RIR)RIPE NCC
CountryAustria (AT)
Delegated on2003-04-03
Network typeCable/DSL/ISP, Regional
Peering policyOpen
IRR as-setAS-SET-STWK
Prefixes (IPv4 / IPv6)20 / 5
RPKI valid96% (24 / 25)
Upstreams and peers51
Downstream networks1
Websitestwk.at

Routing health

  • AS28919 announces 20 IPv4 and 5 IPv6 prefixes.
  • 24 of 25 announced prefixes are RPKI valid.
  • 1 announced prefixes are not covered by a ROA of AS28919 (they may have none, or another network’s).
  • 51 upstreams and peers, 1 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 25

  • 77.223.0.0/22
  • 77.223.0.0/24
  • 80.93.32.0/20
  • 86.111.56.0/22
  • 89.41.128.0/21
  • 89.41.128.0/24
  • 89.41.130.0/24
  • 89.41.131.0/24
  • 89.41.133.0/24
  • 89.41.134.0/24
  • 94.24.56.0/21
  • 94.24.57.0/24
  • 94.24.60.0/24
  • 145.11.40.0/21
  • 185.66.48.0/22
  • 185.163.144.0/22
  • 185.164.112.0/22
  • 193.163.14.0/24
  • 194.180.242.0/24
  • 213.182.224.0/19
  • 2a03:c680:4001::/48
  • 2a03:c680::/29
  • 2a03:c680:f001::/48
  • 2a03:c680:f002::/48
  • 2a10:d100::/32

Upstreams and peers 51

The networks RIPE RIS sees next to AS28919 in BGP paths, the most visible first.

Peering

Peering policy: Open. Suggested max-prefix limits: 30 IPv4, 5 IPv6. PeeringDB record

Internet exchanges 2
ExchangePortsSpeedRoute server
DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN120GYes
DE-CIX Munich: DE-CIX Munich Peering LAN110GYes
Facilities 1
FacilityCityCountry
Equinix MU1/MU3 - MunichMunichDE

More about AS28919

Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-14 11:05 UTC. The country is where the AS number was registered, not necessarily where the network operates.