asn.dev

Observed topology

AS23889 MauritiusTelecom

Upstreams 32 carry this network
Downstreams 11 this network carries
Adjacent (IPv4) 41
Adjacent (IPv6) 28

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS23889: the AS immediately before it in a routing path. Ranked by how many paths showed the relationship, which reflects how widely it is used, not how much traffic crosses it.

ASNetworkTypeFamiliesPaths seen
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv44,478
AS37468Angola CablesUnclassifiedIPv4 IPv62,916
AS3356Level 3 Parent, LLCTransitIPv4 IPv61,131
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6934
AS2914NTT America, Inc.TransitIPv4 IPv6668
AS5511Orange S.A.TransitIPv4 IPv6574
AS6939Hurricane Electric LLCTransitIPv4 IPv6512
AS50304Blix Solutions ASUnclassifiedIPv4464
AS24482SG.GSHostingIPv4 IPv6237
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv6237
AS3741Dimension DataUnclassifiedIPv4235
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv6235
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv6234
AS38001NewMedia Express Pte LtdHostingIPv4 IPv6234
AS12552GlobalConnect ABUnclassifiedIPv4233
AS12779IT.Gate S.p.A.UnclassifiedIPv4233
AS57463NetIX Communications JSCUnclassifiedIPv4233
AS3303Swisscom (Schweiz) AGResidentialIPv4180
AS3216PJSC "Vimpelcom"MobileIPv4172
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv6128
AS37100SEACOM LimitedUnclassifiedIPv4119
AS29075IELO-LIAZO SERVICES SASUnclassifiedIPv4100
AS1836green.ch AGResidentialIPv4 IPv663
AS20485Joint Stock Company TransTeleComUnclassifiedIPv461
AS20766Association "Gitoyen"UnclassifiedIPv460
AS9930TIME dotCom Berhad No. 14, Jalan Majistret U1/26 Hicom Glenmarie Industrial Park 40150 Shah Alam Selangor, MalaysiaUnclassifiedIPv455
AS12859BIT BVHostingIPv426
AS212024Marc SchmittUnclassifiedIPv4 IPv66
AS34019Hivane AssociationUnclassifiedIPv4 IPv63
AS56662Marcin GondekUnclassifiedIPv62
AS213241TECHIT.BE SRLResidentialIPv62
AS29632Netassist International EOODUnclassifiedIPv62

Inferred from path position, not from any declaration by either party. A network appearing here is carrying these routes; whether that is a paid transit arrangement, a backup, or something else is not something routing data can tell you.

Transit

Downstream networks

inferred

Networks for which AS23889 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS21433Accenture UK LimitedUnclassifiedIPv4 IPv6379
AS37622Mahanagar Telephone (Mauritius) LtdResidentialIPv4358
AS36894Mauritius Digital Promotion AgencyUnclassifiedIPv4 IPv6156
AS37708(AfriNIC) Ltd - African Network Information Center - (AfriNIC) LtdUnclassifiedIPv4 IPv6149
AS14789Cloudflare, Inc.UnclassifiedIPv4 IPv695
AS37722Kaldera LtdResidentialIPv487
AS15084Concentrix CVG CorporationUnclassifiedIPv461
AS328019Atcomm Broadband Services LtdResidentialIPv443
AS328699HOSTED LTDHostingIPv427
AS329069CIM Financial Services LimitedUnclassifiedIPv4 IPv618
AS36868Rogers Capital Technology Services LtdResidentialIPv48

Adjacency

Adjacent networks

69 shown

Every AS seen directly next to AS23889 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv64,969
AS37468Angola CablesUnclassifiedIPv4 IPv63,265
AS3356Level 3 Parent, LLCTransitIPv4 IPv61,332
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6988
AS2914NTT America, Inc.TransitIPv4 IPv6680
AS5511Orange S.A.TransitIPv4 IPv6678
AS6939Hurricane Electric LLCTransitIPv4 IPv6579
AS50304Blix Solutions ASUnclassifiedIPv4486
AS21433Accenture UK LimitedUnclassifiedIPv4 IPv6379
AS37622Mahanagar Telephone (Mauritius) LtdResidentialIPv4358
AS38001NewMedia Express Pte LtdHostingIPv4 IPv6254
AS24482SG.GSHostingIPv4 IPv6253
AS3741Dimension DataUnclassifiedIPv4252
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv6251
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv6248
AS12779IT.Gate S.p.A.UnclassifiedIPv4246
AS57463NetIX Communications JSCUnclassifiedIPv4246
AS12552GlobalConnect ABUnclassifiedIPv4245
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv6241
AS37722Kaldera LtdResidentialIPv4207
AS3303Swisscom (Schweiz) AGResidentialIPv4182
AS3216PJSC "Vimpelcom"MobileIPv4173
AS36894Mauritius Digital Promotion AgencyUnclassifiedIPv4 IPv6156
AS37708(AfriNIC) Ltd - African Network Information Center - (AfriNIC) LtdUnclassifiedIPv4 IPv6149
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv6141
AS37100SEACOM LimitedUnclassifiedIPv4119
AS29075IELO-LIAZO SERVICES SASUnclassifiedIPv4 IPv6102
AS14789Cloudflare, Inc.UnclassifiedIPv4 IPv695
AS1836green.ch AGResidentialIPv4 IPv667
AS20485Joint Stock Company TransTeleComUnclassifiedIPv463
AS9930TIME dotCom Berhad No. 14, Jalan Majistret U1/26 Hicom Glenmarie Industrial Park 40150 Shah Alam Selangor, MalaysiaUnclassifiedIPv462
AS20766Association "Gitoyen"UnclassifiedIPv462
AS15084Concentrix CVG CorporationUnclassifiedIPv461
AS328019Atcomm Broadband Services LtdResidentialIPv443
AS328699HOSTED LTDHostingIPv427
AS12859BIT BVHostingIPv4 IPv627
AS329069CIM Financial Services LimitedUnclassifiedIPv4 IPv618
AS212024Marc SchmittUnclassifiedIPv4 IPv611
AS31500Global Network Management IncUnclassifiedIPv410
AS13335Cloudflare, Inc.HostingIPv68
AS36868Rogers Capital Technology Services LtdResidentialIPv48
AS29632Netassist International EOODUnclassifiedIPv68
AS34019Hivane AssociationUnclassifiedIPv4 IPv67
AS213241TECHIT.BE SRLResidentialIPv66
AS56662Marcin GondekUnclassifiedIPv65
AS9002RETN LimitedUnclassifiedIPv62

Adjacency is not the same as peering. Being next to each other in a path covers paid transit, settlement-free peering and customer connections alike, and routing data cannot distinguish them. Treat this as "these networks exchange routes", nothing more specific.

Interconnection

Exchange presence

recorded

Internet exchanges where Packet Clearing House has a port recorded for AS23889, largest fabric first. An exchange is shared switching where networks interconnect directly rather than paying a transit provider to carry traffic between them, so turning up at one is a deliberate choice about how this network wants to be reached. Each name opens that exchange's own page, with its peering LANs and every other network recorded on it. Recorded at 7 exchanges across 6 countries and 3 regions.

ExchangeLocationTheir addressMember ports
DE-CIX FrankfurtFrankfurt, Germany80.81.193.2551,073
LINX LON1London, United Kingdom195.66.227.71925
NAPAfrica IX JohannesburgJohannesburg, South Africa196.60.8.3603
Equinix Internet Exchange SingaporeSingapore, Singapore27.111.229.205490
France-IX MarseilleMarseille, France37.49.232.43127
DE-CIX MarseilleMarseille, France185.1.47.46113
Mauritius Internet ExchangeEbene, Mauritius196.223.0.1225

Unlike the tables above, this is recorded rather than inferred. An address on a peering LAN is at that exchange by definition. Two carve-outs all the same. Member ports counts every participant at the exchange, not this network's ports, so read it as a size proxy. And an absent exchange means PCH has no record of it, not that the network is not there.

Provenance

Where this comes from

Derived from routing tables collected at 2026-08-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.02M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

Cross-check against RIPEstat or BGP.tools, which observe from a different and larger set of vantage points.

Exchange presence comes from a separate dataset: the directory collected 2026-08-08 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,327 exchanges and 93,137 recorded member ports, licensed CC BY-NC-SA 3.0.

PeeringDB is the better-known directory and is deliberately not the source here: its acceptable-use policy forbids the bulk storage this needs. The two answer different questions anyway. PeeringDB reports what an operator declares about itself; this reports what PCH has recorded.