asn.dev

Observed topology

AS2857 RLP-NET

Upstreams 15 carry this network
Downstreams 1 this network carries
Adjacent (IPv4) 13
Adjacent (IPv6) 11

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS2857: 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
AS6939Hurricane Electric LLCTransitIPv4 IPv6435
AS174Cogent Communications, LLCTransitIPv4 IPv6103
AS8365Man-da.de GmbHEducationIPv4 IPv642
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv641
AS9002RETN LimitedUnclassifiedIPv420
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv611
AS212024Marc SchmittUnclassifiedIPv4 IPv611
AS24482SG.GSHostingIPv4 IPv611
AS20485Joint Stock Company TransTeleComUnclassifiedIPv410
AS3303Swisscom (Schweiz) AGResidentialIPv410
AS37100SEACOM LimitedUnclassifiedIPv410
AS17639Converge ICT Solutions Inc.UnclassifiedIPv410
AS29632Netassist International EOODUnclassifiedIPv62
AS56662Marcin GondekUnclassifiedIPv61
AS213241TECHIT.BE SRLResidentialIPv61

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 AS2857 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS199578Rheinland-Pfaelzische Technische Universitaet Kaiserslautern-LandauUnclassifiedIPv4 IPv6220

Adjacency

Adjacent networks

24 shown

Every AS seen directly next to AS2857 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6939Hurricane Electric LLCTransitIPv4 IPv6660
AS199578Rheinland-Pfaelzische Technische Universitaet Kaiserslautern-LandauUnclassifiedIPv4 IPv6311
AS174Cogent Communications, LLCTransitIPv4 IPv6124
AS8365Man-da.de GmbHEducationIPv4 IPv6100
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv641
AS9002RETN LimitedUnclassifiedIPv420
AS37100SEACOM LimitedUnclassifiedIPv412
AS212024Marc SchmittUnclassifiedIPv4 IPv611
AS24482SG.GSHostingIPv4 IPv611
AS48362Stadtwerke FeldkirchResidentialIPv4 IPv611
AS17639Converge ICT Solutions Inc.UnclassifiedIPv410
AS3303Swisscom (Schweiz) AGResidentialIPv410
AS20485Joint Stock Company TransTeleComUnclassifiedIPv410
AS29632Netassist International EOODUnclassifiedIPv64
AS56662Marcin GondekUnclassifiedIPv64
AS213241TECHIT.BE SRLResidentialIPv61

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 AS2857, 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 2 exchanges across 1 country and 1 region.

ExchangeLocationTheir addressMember ports
DE-CIX FrankfurtFrankfurt, Germany80.81.192.81,073
Megaport Frankfurt IXFrankfurt, Germany62.69.146.134114

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.