asn.dev

Observed topology

AS35526 MASTERBIT-AS

Upstreams 15 carry this network
Downstreams 4 this network carries
Adjacent (IPv4) 18
Adjacent (IPv6) 7

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS35526: 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
AS12389PJSC RostelecomResidentialIPv4333
AS20485Joint Stock Company TransTeleComUnclassifiedIPv4151
AS31500Global Network Management IncUnclassifiedIPv4105
AS3216PJSC "Vimpelcom"MobileIPv463
AS9002RETN LimitedUnclassifiedIPv4 IPv653
AS6939Hurricane Electric LLCTransitIPv4 IPv645
AS50673Serverius Holding B.V.UnclassifiedIPv427
AS31133PJSC MegaFonMobileIPv418
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv615
AS208972GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETIUnclassifiedIPv4 IPv614
AS24482SG.GSHostingIPv4 IPv613
AS49673Truenetwork LLCUnclassifiedIPv412
AS35000JSC "Severen-Telecom"UnclassifiedIPv48
AS56655Gigahost ASUnclassifiedIPv4 IPv64
AS8218Zayo Infrastructure France SAUnclassifiedIPv61

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 AS35526 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS49238Doctor Web LLCUnclassifiedIPv4126
AS48223Senator Telecom Ltd.UnclassifiedIPv444
AS49905Joint Stock Company "Primekartonpak"UnclassifiedIPv433
AS51932FGUP Goskorporatsiya po OrVDUnclassifiedIPv48

Adjacency

Adjacent networks

25 shown

Every AS seen directly next to AS35526 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS12389PJSC RostelecomResidentialIPv4333
AS20485Joint Stock Company TransTeleComUnclassifiedIPv4267
AS31500Global Network Management IncUnclassifiedIPv4162
AS49238Doctor Web LLCUnclassifiedIPv4126
AS48223Senator Telecom Ltd.UnclassifiedIPv488
AS9002RETN LimitedUnclassifiedIPv4 IPv684
AS6939Hurricane Electric LLCTransitIPv4 IPv668
AS3216PJSC "Vimpelcom"MobileIPv463
AS49905Joint Stock Company "Primekartonpak"UnclassifiedIPv433
AS50673Serverius Holding B.V.UnclassifiedIPv430
AS31133PJSC MegaFonMobileIPv421
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv619
AS208972GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETIUnclassifiedIPv4 IPv618
AS24482SG.GSHostingIPv4 IPv616
AS35000JSC "Severen-Telecom"UnclassifiedIPv414
AS49673Truenetwork LLCUnclassifiedIPv414
AS51932FGUP Goskorporatsiya po OrVDUnclassifiedIPv48
AS56655Gigahost ASUnclassifiedIPv4 IPv67
AS8218Zayo Infrastructure France SAUnclassifiedIPv61

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 AS35526, 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.

No exchange membership on file. That is not the same as peering nowhere: the dataset records what PCH has collected, and many exchanges publish no participant list at all.

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.