asn.dev

Observed topology

AS205103 TELEGRAPH-AS Telegraph42 Management GmbH

Unclassified RIPE NSP

Upstreams 19 carry this network
Downstreams 7 this network carries
Adjacent (IPv4) 31
Adjacent (IPv6) 24
Upstream graph Who carries AS205103, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS205103 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 19

Networks observed carrying traffic for AS205103: 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 IPv656
AS6461Zayo BandwidthTransitIPv4 IPv67
AS2914NTT America, Inc.TransitIPv46
AS174Cogent Communications, LLCTransitIPv4 IPv64
AS20764CJSC RASCOMUnclassifiedIPv4 IPv64
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv64
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv62
AS24482SG.GSHostingIPv4 IPv62
AS35320Eurotranstelecom LtdUnclassifiedIPv4 IPv62
AS48185team.blue NVUnclassifiedIPv4 IPv62

All 19 upstreams →

Transit

Downstream networks

inferred

Networks for which AS205103 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS48887CJSC INDIGO TAJIKISTANUnclassifiedIPv4861
AS51346Opened Joint Stock Company "Tojiktelecom"UnclassifiedIPv4 IPv6358
AS208592LLC "NET SOLUTIONS"UnclassifiedIPv4354
AS61010IPNET OOOUnclassifiedIPv4 IPv6248
AS202746Europeer Ltd.UnclassifiedIPv4 IPv6102
AS50107Vista Technology LLPUnclassifiedIPv4 IPv614
AS28910"Uzbektelekom" Joint Stock CompanyUnclassifiedIPv4 IPv613

Adjacency

Adjacent networks

All 35

Every AS seen directly next to AS205103 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6939Hurricane Electric LLCTransitIPv4 IPv616,327
AS28910"Uzbektelekom" Joint Stock CompanyUnclassifiedIPv4 IPv615,860
AS208592LLC "NET SOLUTIONS"UnclassifiedIPv4 IPv66,898
AS35168TNS-Plus LLPUnclassifiedIPv43,429
AS6461Zayo BandwidthTransitIPv4 IPv63,227
AS2914NTT America, Inc.TransitIPv4 IPv62,999
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv62,236
AS51346Opened Joint Stock Company "Tojiktelecom"UnclassifiedIPv4 IPv61,251
AS48887CJSC INDIGO TAJIKISTANUnclassifiedIPv4861
AS61010IPNET OOOUnclassifiedIPv4 IPv6692

All 35 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-01 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.48M 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.