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AS211581

Cyberforschungsnetze

Germany (DE)

ASN Information

AS NumberAS211581
AS NameZION-AS
OrganizationZION-AS Zion Boetzel
Also known asCyberforschungsnetze
CountryGermany (DE)
RegistryRIPE NCC
ASN TypeEducational/Research
Last Seen
Announcement Count1
IPv4 Prefix Count0
IPv6 Prefix Count1
RPKI StatusUnknown (could not be determined) ×1
IRR RecordsView IRR route objects
Websitehttps://cyfn.de ↗

AS Path to AS211581

  1. 6939HURRICANE - Hurricane Electric LLC
  2. 41051FREETRANSIT Openfactory GmbH
  3. 211581Origin

Most common path, seen 7× in route collector data, latest at a collector in Singapore (2026-10-24 05:20:33 UTC). Prepends collapsed.

Route Collectors (Visibility)

Sydney: 12 peer session(s)São Paulo: 17 peer session(s)Johannesburg: 22 peer session(s)Amsterdam: 23 peer session(s)Singapore: 23 peer session(s)London: 31 peer session(s)Eugene, OR: 59 peer session(s)
High (10+ peers)Medium (3–9)Low (1–2)

Approximate route collector locations, coloured by peer sessions carrying this AS's routes.

Announced Prefixes (1)

View All →
PrefixFamilyRPKILast Seen
2a0e:8f02:f020::/48IPv6Not checkedNot looked up yet

Peers (15)

View All →
ASNameRelationshipPathsLast Seen
AS41051FREETRANSIT Openfactory GmbHUpstream (inferred)123
AS34927iFog-GmbH iFog GmbHUpstream (inferred)62
AS24482SGGS-AS-AP - SG.GSUpstream (inferred)1
AS24940HETZNER-AS Hetzner Online GmbHUpstream (inferred)1
AS8298IPNG IPng Networks GmbHUncertainInferred—
AS25091IP-Max IP-Max SAUpstream (inferred)Inferred—
AS25220GLOBALNOC-AS equada network GmbHUncertainInferred—
AS47498FogIXP iFog GmbHUpstream (inferred)Inferred—

Neighbours seen next to AS211581 in public AS paths. These are not confirmed BGP sessions; peer IP addresses and locations are not published by these sources.

Public Peering Exchange Points (2)

IX Updates →
ExchangeLocationIPv4IPv6SpeedRS peerUpdated
FogIXPAvers, CH—2001:7f8:ca:1:0:21:1581:11GYes
KleyReXFrankfurt, DE193.189.83.1852001:7f8:33::a121:1581:1100MYes

IX ports registered by AS211581 (self-reported by the network).

Interconnection Facilities (0)

No interconnection facilities are registered for AS211581.

Data centres where AS211581 says it can interconnect (self-reported).

IRR AS-SET and Peering Policy

IRR AS-SETAS211581:AS-PROZION24
Member of AS-SETsSee IRR page
Peering policyOpen
Multiple locationsNot Required
Ratio requirementNo
ContractNot Required
Traffic100-1000Mbps
Traffic ratioMostly Outbound
Geographic scopeEurope
Max prefixes (IPv4 / IPv6)0 / 1
Unicast / IPv6 / MulticastNo / Yes / No
Looking glassNot available
Route serverNot available

Contact Information (2)

RoleNameEmailPhone
NOCCyberforschungsnetze | Network Operations Centernoc@cyfn.de+4922892392566
AbuseAbuseabuse@cyfn.de+4922892392566

Only contacts the network has chosen to publish are shown.

Upstreams (8)

ASNameRelationshipPathsLast Seen
AS41051FREETRANSIT Openfactory GmbHUpstream (inferred)123
AS34927iFog-GmbH iFog GmbHUpstream (inferred)62
AS24482SGGS-AS-AP - SG.GSUpstream (inferred)1
AS24940HETZNER-AS Hetzner Online GmbHUpstream (inferred)1
AS25091IP-Max IP-Max SAUpstream (inferred)Inferred—
AS47498FogIXP iFog GmbHUpstream (inferred)Inferred—
AS205794RTTW-AS JINZE YANGUpstream (inferred)Inferred—
AS209022Tschajera-Limited Tschajera LimitedUpstream (inferred)Inferred—

Downstreams (0)

No downstream ASNs found for AS211581 in current data sources.

Registry and network details

Registered holderZION-AS Zion Boetzel
RegisteredYes
Peering policyOpen
IRR AS-setAS211581:AS-PROZION24
Registry record last modified
MaintainersRIPE-NCC-END-MNT, PROZION24-MNT
Internet exchanges2
Facilities0
Network profile updated

Data updated . See limitations.