asn.dev

Observed topology

AS786 JANET Jisc Services Limited

Upstreams 23 carry this network
Downstreams 25 this network carries
Adjacent (IPv4) 47
Adjacent (IPv6) 16

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS786: 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
AS1299Arelion Sweden ABTransitIPv4 IPv63,872
AS3356Level 3 Parent, LLCTransitIPv4 IPv63,515
AS6939Hurricane Electric LLCTransitIPv4 IPv61,537
AS20965GEANT VerenigingUnclassifiedIPv4 IPv61,054
AS9002RETN LimitedUnclassifiedIPv4 IPv6859
AS33891Core-Backbone GmbHHostingIPv4422
AS3491PCCW Global (HK) Ltd.TransitIPv4 IPv6229
AS29169GANDI SASHostingIPv4 IPv6218
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv6218
AS24482SG.GSHostingIPv4 IPv6218
AS3303Swisscom (Schweiz) AGResidentialIPv4211
AS12552GlobalConnect ABUnclassifiedIPv4211
AS4637Telstra GlobalUnclassifiedIPv4211
AS42708Glesys ABUnclassifiedIPv4211
AS48185team.blue NVUnclassifiedIPv4211
AS3216PJSC "Vimpelcom"MobileIPv4210
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv621
AS13030Init7 (Switzerland) Ltd.HostingIPv67
AS6461Zayo BandwidthTransitIPv45
AS6830Liberty Global Europe Holding B.V.ResidentialIPv42
AS23764CTGNetUnclassifiedIPv41
AS31500Global Network Management IncUnclassifiedIPv41
AS61049Exascale LtdResidentialIPv41

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 AS786 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS60187London Grid for Learning TrustUnclassifiedIPv4 IPv62,698
AS7The Defence Science and Technology LaboratoryUnclassifiedIPv4 IPv61,156
AS198864Queen Mary University of LondonUnclassifiedIPv4 IPv6379
AS44369emPSN Services LimitedUnclassifiedIPv4313
AS35832Birmingham City CouncilUnclassifiedIPv4279
AS44403Bristol City CouncilUnclassifiedIPv4257
AS199713MLL Telecom Ltd.UnclassifiedIPv4186
AS33967Lancashire County CouncilUnclassifiedIPv4156
AS207039Satellite Applications Catapult LimitedUnclassifiedIPv4126
AS209237NPL Management LTDUnclassifiedIPv4125
AS31256Warwickshire County CouncilUnclassifiedIPv4125
AS201773University of WarwickUnclassifiedIPv4125
AS206490Southend-on-Sea City CouncilUnclassifiedIPv4124
AS56670West Sussex County CouncilUnclassifiedIPv4124
AS29626Staffordshire County CouncilUnclassifiedIPv4110
AS196902Dudley Metropolitan Borough CouncilUnclassifiedIPv4 IPv695
AS198032Cambridge AssessmentUnclassifiedIPv466
AS44442The Borough of Telford and Wrekin CouncilUnclassifiedIPv463
AS202575University of HullUnclassifiedIPv463
AS209198Offshore Renewable Energy CatapultUnclassifiedIPv4 IPv663
AS60282Coventry City CouncilUnclassifiedIPv462
AS198863Cambridge University Press (Holdings) LimitedUnclassifiedIPv462
AS198222West Herts CollegeUnclassifiedIPv462
AS15770Durham County CouncilUnclassifiedIPv459
AS199131City of York CouncilUnclassifiedIPv428

Adjacency

Adjacent networks

63 shown

Every AS seen directly next to AS786 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS1299Arelion Sweden ABTransitIPv4 IPv65,974
AS3356Level 3 Parent, LLCTransitIPv4 IPv65,485
AS60187London Grid for Learning TrustUnclassifiedIPv4 IPv63,009
AS6939Hurricane Electric LLCTransitIPv4 IPv62,322
AS20965GEANT VerenigingUnclassifiedIPv4 IPv61,683
AS9002RETN LimitedUnclassifiedIPv4 IPv61,320
AS7The Defence Science and Technology LaboratoryUnclassifiedIPv4 IPv61,156
AS33891Core-Backbone GmbHHostingIPv4655
AS198864Queen Mary University of LondonUnclassifiedIPv4 IPv6379
AS3491PCCW Global (HK) Ltd.TransitIPv4 IPv6355
AS4637Telstra GlobalUnclassifiedIPv4332
AS3303Swisscom (Schweiz) AGResidentialIPv4332
AS29169GANDI SASHostingIPv4 IPv6332
AS48185team.blue NVUnclassifiedIPv4331
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv6331
AS24482SG.GSHostingIPv4 IPv6330
AS12552GlobalConnect ABUnclassifiedIPv4320
AS3216PJSC "Vimpelcom"MobileIPv4317
AS42708Glesys ABUnclassifiedIPv4317
AS44369emPSN Services LimitedUnclassifiedIPv4313
AS35832Birmingham City CouncilUnclassifiedIPv4279
AS44403Bristol City CouncilUnclassifiedIPv4257
AS199713MLL Telecom Ltd.UnclassifiedIPv4249
AS33967Lancashire County CouncilUnclassifiedIPv4166
AS207039Satellite Applications Catapult LimitedUnclassifiedIPv4126
AS31256Warwickshire County CouncilUnclassifiedIPv4125
AS201773University of WarwickUnclassifiedIPv4125
AS209237NPL Management LTDUnclassifiedIPv4125
AS206490Southend-on-Sea City CouncilUnclassifiedIPv4124
AS56670West Sussex County CouncilUnclassifiedIPv4124
AS29626Staffordshire County CouncilUnclassifiedIPv4110
AS196902Dudley Metropolitan Borough CouncilUnclassifiedIPv4 IPv695
AS198032Cambridge AssessmentUnclassifiedIPv466
AS202575University of HullUnclassifiedIPv463
AS44442The Borough of Telford and Wrekin CouncilUnclassifiedIPv463
AS209198Offshore Renewable Energy CatapultUnclassifiedIPv4 IPv663
AS198222West Herts CollegeUnclassifiedIPv462
AS198863Cambridge University Press (Holdings) LimitedUnclassifiedIPv462
AS57907CloudConnX LimitedUnclassifiedIPv462
AS60282Coventry City CouncilUnclassifiedIPv462
AS15770Durham County CouncilUnclassifiedIPv459
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv639
AS199131City of York CouncilUnclassifiedIPv428
AS13030Init7 (Switzerland) Ltd.HostingIPv611
AS6461Zayo BandwidthTransitIPv45
AS6830Liberty Global Europe Holding B.V.ResidentialIPv42
AS31500Global Network Management IncUnclassifiedIPv42
AS61049Exascale LtdResidentialIPv41
AS23764CTGNetUnclassifiedIPv41

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 AS786, 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 3 exchanges across 1 country and 1 region.

ExchangeLocationTheir addressMember ports
LINX LON1London, United Kingdom195.66.224.15925
LINX ManchesterManchester, United Kingdom195.66.244.22145
Leeds Internet ExchangeLeeds, United Kingdom91.217.231.1722

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.