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AS131987

MC-Digital Realty (MCDR) Tokyo

Japan (JP)

ASN Information

AS NumberAS131987
AS NameMCDR-IP-NRT
OrganizationMC Digital Realty, Inc.
Also known asNot available
CountryJapan (JP)
RegistryAPNIC
ASN TypeCable/DSL/ISP
Last Seen
Announcement Count3
IPv4 Prefix Count2
IPv6 Prefix Count1
RPKI StatusNotFound ×2Unknown (could not be determined) ×1
IRR RecordsView IRR route objects
Websitehttps://www.mc-digitalrealty.com ↗

AS Path to AS131987

  1. 37271Workonline Communications(Pty) Ltd - Workonline Communications(Pty) Ltd
  2. 4637ASN-TELSTRA-GLOBAL - Telstra Global
  3. 131987Origin

Most common path, seen 12× in route collector data, latest at a collector in Johannesburg (2026-10-25 13:39:00 UTC). Prepends collapsed.

Route Collectors (Visibility)

Sydney: 20 peer session(s)São Paulo: 33 peer session(s)Johannesburg: 36 peer session(s)Amsterdam: 44 peer session(s)Singapore: 45 peer session(s)London: 56 peer session(s)Eugene, OR: 113 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 (3)

View All →
PrefixFamilyRPKILast Seen
43.231.216.0/22IPv4NotFoundNot looked up yet
43.252.240.0/22IPv4NotFoundNot looked up yet
2400:32a0::/32IPv6Not checkedNot looked up yet

Peers (14)

View All →
ASNameRelationshipPathsLast Seen
AS4637ASN-TELSTRA-GLOBAL - Telstra GlobalUpstream (inferred)286
AS2914NTT-DATA-2914 - NTT America, Inc.Upstream (inferred)199
AS6939HURRICANE - Hurricane Electric LLCUpstream (inferred)16
AS4826VOCUS-BACKBONE-AS - Vocus Connect International BackboneUpstream (inferred)6
AS9002RETN-AS RETN LimitedUpstream (inferred)4
AS24482SGGS-AS-AP - SG.GSUpstream (inferred)4
AS3216SOVAM-AS PJSC "Vimpelcom"Upstream (inferred)2
AS4775GLOBE-TELECOM-AS - Globe TelecomsUpstream (inferred)2

Neighbours seen next to AS131987 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 AS131987.

IX ports registered by AS131987 (self-reported by the network).

Interconnection Facilities (1)

FacilityCityCountry
Digital Realty Tokyo - NRT10Inzai-CityJapan

Data centres where AS131987 says it can interconnect (self-reported).

IRR AS-SET and Peering Policy

IRR AS-SETAS-DLR-TOKYO
Member of AS-SETsSee IRR page
Peering policySelective
Multiple locationsNot Required
Ratio requirementNo
ContractNot Required
TrafficNot available
Traffic ratioNot Disclosed
Geographic scopeAsia Pacific
Max prefixes (IPv4 / IPv6)Not available
Unicast / IPv6 / MulticastYes / Yes / No
Looking glassNot available
Route serverNot available

Contact Information (0)

No public contacts are registered for AS131987.

Only contacts the network has chosen to publish are shown.

Upstreams (11)

ASNameRelationshipPathsLast Seen
AS4637ASN-TELSTRA-GLOBAL - Telstra GlobalUpstream (inferred)286
AS2914NTT-DATA-2914 - NTT America, Inc.Upstream (inferred)199
AS6939HURRICANE - Hurricane Electric LLCUpstream (inferred)16
AS4826VOCUS-BACKBONE-AS - Vocus Connect International BackboneUpstream (inferred)6
AS9002RETN-AS RETN LimitedUpstream (inferred)4
AS24482SGGS-AS-AP - SG.GSUpstream (inferred)4
AS3216SOVAM-AS PJSC "Vimpelcom"Upstream (inferred)2
AS4775GLOBE-TELECOM-AS - Globe TelecomsUpstream (inferred)2
AS49544i3Dnet i3D.net B.VUpstream (inferred)2
AS17686ACCELIA - ACCELIAUpstream (inferred)Inferred—
AS20485TRANSTELECOM Joint Stock Company TransTeleComUpstream (inferred)Inferred—

Downstreams (0)

No downstream ASNs found for AS131987 in current data sources.

Registry and network details

Registered holderMCDR-NRT - MC Digital Realty, Inc.
RegisteredYes
Peering policySelective
IRR AS-setAS-DLR-TOKYO
Registry record last modified
MaintainersMAINT-JPNIC
Internet exchanges0
Facilities1
Network profile updated

Data updated . See limitations.