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AS31477

Duocast

Netherlands (NL)

ASN Information

AS NumberAS31477
AS NameDUOCAST-AS
OrganizationDUOCAST-AS Duocast B.V.
Also known asNot available
CountryNetherlands (NL)
RegistryRIPE NCC
ASN TypeContent
Last Seen
Announcement Count55
IPv4 Prefix Count43
IPv6 Prefix Count12
RPKI StatusValid ×31NotFound ×12Unknown (could not be determined) ×7
IRR RecordsView IRR route objects
Websitehttps://www.duocast.nl ↗

AS Path to AS31477

  1. 58511ANYCAST-GLOBAL-BACKBONE - Anycast Global Backbone
  2. 31477Origin

Most common path, seen 16× in route collector data, latest at a collector in Eugene, OR (2026-10-23 12:37:52 UTC). Prepends collapsed.

Route Collectors (Visibility)

Sydney: 11 peer session(s)São Paulo: 17 peer session(s)Johannesburg: 19 peer session(s)Singapore: 23 peer session(s)Amsterdam: 26 peer session(s)London: 32 peer session(s)Eugene, OR: 56 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 (55)

View All →
PrefixFamilyRPKILast Seen
37.9.160.0/21IPv4NotFoundNot looked up yet
45.82.188.0/22IPv4ValidNot looked up yet
82.150.139.0/24IPv4ValidNot looked up yet
83.137.144.0/21IPv4ValidNot looked up yet
83.137.146.0/24IPv4ValidNot looked up yet
83.137.151.0/24IPv4ValidNot looked up yet
87.238.168.0/21IPv4ValidNot looked up yet
87.238.171.0/24IPv4ValidNot looked up yet

Peers (149)

View All →
ASNameRelationshipPathsLast Seen
AS50673Serverius-as Serverius Holding B.V.Upstream (inferred)187
AS1299TWELVE99 Arelion Sweden ABUpstream (inferred)149
AS2914NTT-DATA-2914 - NTT America, Inc.Upstream (inferred)97
AS6830LibertyGlobal Liberty Global Europe Holding B.V.Upstream (inferred)46
AS6939HURRICANE - Hurricane Electric LLCUpstream (inferred)30
AS30844LIQUID-AS Liquid Telecommunications LtdUpstream (inferred)28
AS37468Angola Cables - Angola CablesUpstream (inferred)24
AS4637ASN-TELSTRA-GLOBAL - Telstra GlobalUpstream (inferred)21

Neighbours seen next to AS31477 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 (4)

IX Updates →
ExchangeLocationIPv4IPv6SpeedRS peerUpdated
AMS-IXAmsterdam, NL80.249.209.982001:7f8:1::a503:1477:120GYes
Frys-IXFryslân, NL185.1.160.2132001:7f8:10f::7af5:213100GYes
GrunIXGroningen, NL185.1.190.1952001:7f8:104::a503:1477:110GNo
NL-ixAmsterdam, Rotterdam, Brussels, Luxembourg, Frankfurt, Düsseldorf, Berlin, Dublin, London, Copenhagen, Paris, Marseille, NL193.239.116.1322001:7f8:13::a503:1477:110GYes

IX ports registered by AS31477 (self-reported by the network).

Interconnection Facilities (8)

FacilityCityCountry
Equinix AM7 - Amsterdam, KuiperberwegAmsterdamNetherlands
Global Switch AmsterdamAmsterdamNetherlands
NIKHEF AmsterdamAmsterdamNetherlands
QTS Eemshaven (EEM1)EemshavenNetherlands
Eurofiber Datacenter Groningen 1GroningenNetherlands
NorthC Groningen 1GroningenNetherlands
QTS Groningen (GRO1)GroningenNetherlands
Penta Infra Leeuwarden LEE02LeeuwardenNetherlands

Data centres where AS31477 says it can interconnect (self-reported).

IRR AS-SET and Peering Policy

IRR AS-SETRIPE::AS31477:AS-DUOCAST
Member of AS-SETsSee IRR page
Peering policyOpen
Multiple locationsNot Required
Ratio requirementNo
ContractNot Required
Traffic10-20Gbps
Traffic ratioBalanced
Geographic scopeEurope
Max prefixes (IPv4 / IPv6)100 / 25
Unicast / IPv6 / MulticastYes / Yes / No
Looking glassNot available
Route serverNot available

Contact Information (2)

RoleNameEmailPhone
NOCNOCnoc@duocast.net—
AbuseNOCabuse@duocast.net—

Only contacts the network has chosen to publish are shown.

Upstreams (103)

View all →
ASNameRelationshipPathsLast Seen
AS50673Serverius-as Serverius Holding B.V.Upstream (inferred)187
AS1299TWELVE99 Arelion Sweden ABUpstream (inferred)149
AS2914NTT-DATA-2914 - NTT America, Inc.Upstream (inferred)97
AS6830LibertyGlobal Liberty Global Europe Holding B.V.Upstream (inferred)46
AS6939HURRICANE - Hurricane Electric LLCUpstream (inferred)30
AS30844LIQUID-AS Liquid Telecommunications LtdUpstream (inferred)28
AS37468Angola Cables - Angola CablesUpstream (inferred)24
AS4637ASN-TELSTRA-GLOBAL - Telstra GlobalUpstream (inferred)21
AS58511ANYCAST-GLOBAL-BACKBONE - Anycast Global BackboneUpstream (inferred)16
AS137409GSLNETWORKS-AS-AP - GSL Networks Pty LTDUpstream (inferred)16
AS3320DTAG Deutsche Telekom AGUpstream (inferred)15
AS7713telkomnet-as-ap - PT Telekomunikasi IndonesiaUpstream (inferred)14

Downstreams (13)

View all →
ASNameRelationshipPathsLast Seen
AS8312—Downstream (inferred)Inferred—
AS29028—Downstream (inferred)Inferred—
AS35974—Downstream (inferred)Inferred—
AS39002—Downstream (inferred)Inferred—
AS51517—Downstream (inferred)Inferred—
AS51923—Downstream (inferred)Inferred—
AS198508—Downstream (inferred)Inferred—
AS198692—Downstream (inferred)Inferred—
AS201723—Downstream (inferred)Inferred—
AS204751—Downstream (inferred)Inferred—
AS213052—Downstream (inferred)Inferred—
AS218916—Downstream (inferred)Inferred—

Registry and network details

Registered holderDUOCAST-AS Duocast B.V.
RegisteredYes
Peering policyOpen
IRR AS-setRIPE::AS31477:AS-DUOCAST
Registry record last modified
MaintainersMNT-DUOCAST, RIPE-NCC-END-MNT
Internet exchanges4
Facilities8
Network profile updated

Data updated . See limitations.