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AS numbers

AS6881 NIX.CZ, z.s.p.o.

AS6881 is operated by NIX.CZ, z.s.p.o. and registered with RIPE NCC (CZ) since 1996-12-23.

It announces 2 IPv4 and 1 IPv6 prefixes.

RIPE RIS sees 12 upstream and peer networks and 4 downstream networks next to it.

PeeringDB lists it as a Non-Profit network at 2 internet exchanges and 10 facilities. Its peering policy is open.

NameNIX.CZ, z.s.p.o.
Registry (RIR)RIPE NCC
CountryCzechia (CZ)
Delegated on1996-12-23
Network typeNon-Profit, Regional
Peering policyOpen
IRR as-setRIPE::AS6881:AS-NIX
Prefixes (IPv4 / IPv6)2 / 1
Upstreams and peers12
Downstream networks4
Websitenix.cz

Routing health

  • Partial result: RIPEstat did not return the roas in time.
  • AS6881 announces 2 IPv4 and 1 IPv6 prefixes.
  • 12 upstreams and peers, 4 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 3

  • 93.190.128.0/21
  • 195.47.235.0/24
  • 2a02:38::/32

Upstreams and peers 12

The networks RIPE RIS sees next to AS6881 in BGP paths, the most visible first.

Peering

Peering policy: Open. Suggested max-prefix limits: 20 IPv4, 20 IPv6. PeeringDB record

Internet exchanges 2
ExchangePortsSpeedRoute server
NIX.CZ: Public peering VLAN2400GYes
NIX.SK2400GYes
Facilities 10
FacilityCityCountry
CE Colo DC7 PraguePragueCZ
CE Colo PraguePragueCZ
DC Tower Zizkov CRaPragueCZ
Digital Realty Frankfurt FRA1-27FrankfurtDE
Digital Realty VIE1/2 - ViennaViennaAT
Equinix FR5 - Frankfurt, KleyerStrasseFrankfurtDE
GTS Telehouse PraguePragueCZ
Sitel BratislavaBratislavaSK
TTC TELEPORT DC1PragueCZ
TTC TELEPORT DC2PragueCZ

More about AS6881

Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-15 07:16 UTC. The country is where the AS number was registered, not necessarily where the network operates.