asn.dev

Observed topology

AS17978 SERVCORP SERVCORP AUSTRALIAN HOLDINGS LTD

Upstreams 27 carry this network
Downstreams 0 this network carries
Adjacent (IPv4) 27
Adjacent (IPv6) 0

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS17978: 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
AS7474SingTel Optus Pty LtdUnclassifiedIPv41,032
AS8220COLT Technology Services Group LimitedHostingIPv4980
AS10021KVH Co.,LtdUnclassifiedIPv4594
AS6939Hurricane Electric LLCTransitIPv4520
AS174Cogent Communications, LLCTransitIPv4282
AS38566NTTCTNETUnclassifiedIPv4201
AS9790Two Degrees Networks LimitedResidentialIPv4198
AS57187Emirates Integrated Telecommunications Company PJSCUnclassifiedIPv4186
AS58507WirelineResidentialIPv496
AS24482SG.GSHostingIPv457
AS34549meerfarbig GmbH & Co. KGHostingIPv428
AS64073Vetta GroupUnclassifiedIPv424
AS17639Converge ICT Solutions Inc.UnclassifiedIPv417
AS50304Blix Solutions ASUnclassifiedIPv414
AS37721Virtual Technologies & SolutionsResidentialIPv413
AS57463NetIX Communications JSCUnclassifiedIPv410
AS38001NewMedia Express Pte LtdHostingIPv410
AS3741Dimension DataUnclassifiedIPv47
AS37100SEACOM LimitedUnclassifiedIPv47
AS12552GlobalConnect ABUnclassifiedIPv47
AS48362Stadtwerke FeldkirchResidentialIPv47
AS29075IELO-LIAZO SERVICES SASUnclassifiedIPv47
AS12779IT.Gate S.p.A.UnclassifiedIPv47
AS50300CustodianDC LimitedUnclassifiedIPv47
AS31500Global Network Management IncUnclassifiedIPv47
AS293ESnetUnclassifiedIPv46
AS35280F5 Networks SARLHostingIPv43

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 AS17978 was observed as the last hop before the origin, meaning it appears to provide them transit.

No downstream observed. This network does not appear to carry transit for anyone.

Adjacency

Adjacent networks

27 shown

Every AS seen directly next to AS17978 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS7474SingTel Optus Pty LtdUnclassifiedIPv41,032
AS8220COLT Technology Services Group LimitedHostingIPv4980
AS10021KVH Co.,LtdUnclassifiedIPv4594
AS6939Hurricane Electric LLCTransitIPv4520
AS174Cogent Communications, LLCTransitIPv4282
AS38566NTTCTNETUnclassifiedIPv4201
AS9790Two Degrees Networks LimitedResidentialIPv4198
AS57187Emirates Integrated Telecommunications Company PJSCUnclassifiedIPv4186
AS58507WirelineResidentialIPv496
AS24482SG.GSHostingIPv457
AS34549meerfarbig GmbH & Co. KGHostingIPv428
AS64073Vetta GroupUnclassifiedIPv424
AS17639Converge ICT Solutions Inc.UnclassifiedIPv417
AS50304Blix Solutions ASUnclassifiedIPv414
AS37721Virtual Technologies & SolutionsResidentialIPv413
AS57463NetIX Communications JSCUnclassifiedIPv410
AS38001NewMedia Express Pte LtdHostingIPv410
AS48362Stadtwerke FeldkirchResidentialIPv47
AS50300CustodianDC LimitedUnclassifiedIPv47
AS12779IT.Gate S.p.A.UnclassifiedIPv47
AS29075IELO-LIAZO SERVICES SASUnclassifiedIPv47
AS31500Global Network Management IncUnclassifiedIPv47
AS12552GlobalConnect ABUnclassifiedIPv47
AS37100SEACOM LimitedUnclassifiedIPv47
AS3741Dimension DataUnclassifiedIPv47
AS293ESnetUnclassifiedIPv46
AS35280F5 Networks SARLHostingIPv43

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 AS17978, 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 6 exchanges across 6 countries and 3 regions.

ExchangeLocationTheir addressMember ports
LINX LON1London, United Kingdom195.66.227.198925
Equinix Internet Exchange SingaporeSingapore, Singapore27.111.228.147490
Equinix Internet Exchange AshburnAshburn, United States206.126.237.166388
JPIX TokyoTokyo, Japan210.171.225.34259
IX Australia (Sydney NSW)Sydney, Australia218.100.52.86199
UAE-IX by DE-CIXDubai, United Arab Emirates185.1.8.77108

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 2026-08-09 by Packet Clearing House (https://www.pch.net/ixp/data), covering 1,327 exchanges and 93,164 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.