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AS51871

F1-CONSULT GmbH & Co. KG

Germany (DE)

ASN Information

AS NumberAS51871
AS NameF1-CONSULT
OrganizationF1-CONSULT F1-CONSULT GmbH & Co. KG
Also known asF1-CONSULT GmbH & Co. KG
CountryGermany (DE)
RegistryRIPE NCC
ASN TypeNSP
Last Seen
Announcement Count14
IPv4 Prefix Count8
IPv6 Prefix Count6
RPKI StatusValid ×8Unknown (could not be determined) ×6
IRR RecordsView IRR route objects
Websitehttps://www.f1-consult.com ↗

AS Path to AS51871

  1. 37271Workonline Communications(Pty) Ltd - Workonline Communications(Pty) Ltd
  2. 3320DTAG Deutsche Telekom AG
  3. 51871Origin

Most common path, seen 20× in route collector data, latest at a collector in Johannesburg (2026-10-21 10:43:31 UTC). Prepends collapsed.

Route Collectors (Visibility)

Sydney: 11 peer session(s)São Paulo: 16 peer session(s)Johannesburg: 19 peer session(s)Singapore: 22 peer session(s)Amsterdam: 24 peer session(s)London: 30 peer session(s)Eugene, OR: 57 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 (14)

View All →
PrefixFamilyRPKILast Seen
185.239.20.0/22IPv4ValidNot looked up yet
185.239.20.0/24IPv4ValidNot looked up yet
185.239.21.0/24IPv4ValidNot looked up yet
193.34.28.0/22IPv4ValidNot looked up yet
193.34.28.0/24IPv4ValidNot looked up yet
193.34.29.0/24IPv4ValidNot looked up yet
193.34.30.0/24IPv4ValidNot looked up yet
193.34.31.0/24IPv4ValidNot looked up yet

Peers (2)

View All →
ASNameRelationshipPathsLast Seen
AS3491PCCWG-APAC-HK - PCCW Global (HK) Ltd.Upstream (inferred)733
AS3320DTAG Deutsche Telekom AGUpstream (inferred)153

Neighbours seen next to AS51871 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 (0)

IX Updates →

No Internet Exchange ports are registered for AS51871.

IX ports registered by AS51871 (self-reported by the network).

Interconnection Facilities (0)

No interconnection facilities are registered for AS51871.

Data centres where AS51871 says it can interconnect (self-reported).

IRR AS-SET and Peering Policy

IRR AS-SETNot available
Member of AS-SETsSee IRR page
Peering policyRestrictive
Multiple locationsNot Required
Ratio requirementNo
ContractPrivate Only
TrafficNot available
Traffic ratioBalanced
Geographic scopeEurope
Max prefixes (IPv4 / IPv6)0 / 0
Unicast / IPv6 / MulticastYes / Yes / Yes
Looking glassNot available
Route serverNot available

Contact Information (1)

RoleNameEmailPhone
Abuseabuseabuse@f1-consult.com—

Only contacts the network has chosen to publish are shown.

Upstreams (2)

ASNameRelationshipPathsLast Seen
AS3491PCCWG-APAC-HK - PCCW Global (HK) Ltd.Upstream (inferred)733
AS3320DTAG Deutsche Telekom AGUpstream (inferred)153

Downstreams (0)

No downstream ASNs found for AS51871 in current data sources.

Registry and network details

Registered holderF1-CONSULT F1-CONSULT GmbH & Co. KG
RegisteredYes
Peering policyRestrictive
IRR AS-setNot available
Registry record last modified
MaintainersRIPE-NCC-END-MNT, F1CONS-MNT, de-f1-consult-1-mnt
Internet exchanges0
Facilities0
Network profile updated

Data updated . See limitations.