asn.dev

Observed topology

AS51500 SERVISNET-AS Servisnet Ltd.

Unclassified RIPE NSP

Upstreams 27 carry this network
Downstreams 10 this network carries
Adjacent (IPv4) 34
Adjacent (IPv6) 13
Upstream graph Who carries AS51500, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS51500 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 27

Networks observed carrying traffic for AS51500: 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
AS6663Euroweb Romania S.R.L.UnclassifiedIPv4 IPv6241
AS3356Level 3 Parent, LLCTransitIPv4 IPv6188
AS6939Hurricane Electric LLCTransitIPv4176
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv667
AS9002RETN LimitedUnclassifiedIPv4 IPv666
AS50581Ukrainian Telecommunication Group LLCUnclassifiedIPv428
AS50263A-Systems Sp. z o.o.UnclassifiedIPv4 IPv626
AS3303Swisscom (Schweiz) AGResidentialIPv424
AS24482SG.GSHostingIPv4 IPv624
AS34019Hivane AssociationUnclassifiedIPv4 IPv623

All 27 upstreams →

Transit

Downstream networks

inferred

Networks for which AS51500 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS15742JSC Commercial Bank "PrivatBank"UnclassifiedIPv461
AS204288LTD "ITLUX"UnclassifiedIPv456
AS60777PP 'Halytska informatsiina merezha'UnclassifiedIPv422
AS49827IE KHOMA YURY ROMANOVICHUnclassifiedIPv421
AS49984"Telecomunikatsiina Companiya" LtdResidentialIPv418
AS210987Lviv Communal Enterprise "Municipal IT Center"UnclassifiedIPv47
AS56797FOP Ruban NataliyaUnclassifiedIPv45
AS199697LLC "IT PROSTEER"UnclassifiedIPv43
AS39315Comcor Service LLCHostingIPv42
AS198105SK-TECH LLCUnclassifiedIPv41

Adjacency

Adjacent networks

All 38

Every AS seen directly next to AS51500 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6663Euroweb Romania S.R.L.UnclassifiedIPv4 IPv6335
AS3356Level 3 Parent, LLCTransitIPv4 IPv6243
AS6939Hurricane Electric LLCTransitIPv4182
AS9002RETN LimitedUnclassifiedIPv4 IPv6126
AS204288LTD "ITLUX"UnclassifiedIPv4112
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv667
AS15742JSC Commercial Bank "PrivatBank"UnclassifiedIPv461
AS50263A-Systems Sp. z o.o.UnclassifiedIPv4 IPv654
AS24482SG.GSHostingIPv4 IPv632
AS3303Swisscom (Schweiz) AGResidentialIPv431

All 38 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-06 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.00M route entries. These are observations from those vantage points, not a complete or authoritative view of the internet.

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. 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.

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