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AS numbers

AS57728 HELIOS MB

AS57728 is operated by HELIOS MB and registered with RIPE NCC (CZ) since 2019-10-21.

It announces 5 IPv4 and 3 IPv6 prefixes, 100% of them RPKI valid.

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

PeeringDB lists it with no exchanges or facilities. Its peering policy is open.

NameHELIOS MB
Registry (RIR)RIPE NCC
CountryCzechia (CZ)
Delegated on2019-10-21
Network typeNot Disclosed
Peering policyOpen
Prefixes (IPv4 / IPv6)5 / 3
RPKI valid100% (8 / 8)
Upstreams and peers1
Downstream networks0

Routing health

  • AS57728 announces 5 IPv4 and 3 IPv6 prefixes.
  • All 8 announced prefixes are RPKI valid.
  • One upstream or peer seen (AS39791): 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 8

  • 81.25.16.0/21
  • 81.25.24.0/21
  • 109.234.40.0/21
  • 185.255.116.0/22
  • 188.122.192.0/19
  • 2a0a:b6c0::/32
  • 2a00:1800::/32
  • 2a00:1807::/32

Upstreams and peers 1

The networks RIPE RIS sees next to AS57728 in BGP paths, the most visible first.

Peering

Peering policy: Open. Suggested max-prefix limits: 0 IPv4, 0 IPv6. PeeringDB record

More about AS57728

Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-14 18:48 UTC. The country is where the AS number was registered, not necessarily where the network operates.