asn.dev

Observed topology

AS21341 SINET-AS Access Service Provider

Unclassified RIPE

Upstreams 3 carry this network
Downstreams 5 this network carries
Adjacent (IPv4) 9
Adjacent (IPv6) 1
Upstream graph Who carries AS21341, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS21341 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS21341: 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
AS24631Tose'h Fanavari Ertebabat Pasargad Arian Co. PJSUnclassifiedIPv4 IPv61,273
AS48159Telecommunication Infrastructure CompanyUnclassifiedIPv4120
AS12880Iran Information Technology Company PJSCResidentialIPv458

Transit

Downstream networks

inferred

Networks for which AS21341 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS201227Mizban Dade Pasargad LLCUnclassifiedIPv4186
AS49433Bank Refah KargaranUnclassifiedIPv462
AS51777Alborz Insurance CompanyUnclassifiedIPv462
AS203014IRAN CHAMBER OF COMMERCE, INDUSTRIES, MINES and AGRICULTUREUnclassifiedIPv462
AS211056Amir Hosein MaarefUnclassifiedIPv462

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS21341 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS24631Tose'h Fanavari Ertebabat Pasargad Arian Co. PJSUnclassifiedIPv4 IPv61,694
AS201227Mizban Dade Pasargad LLCUnclassifiedIPv4186
AS48159Telecommunication Infrastructure CompanyUnclassifiedIPv4120
AS49433Bank Refah KargaranUnclassifiedIPv462
AS51777Alborz Insurance CompanyUnclassifiedIPv462
AS203014IRAN CHAMBER OF COMMERCE, INDUSTRIES, MINES and AGRICULTUREUnclassifiedIPv462
AS211056Amir Hosein MaarefUnclassifiedIPv462
AS12880Iran Information Technology Company PJSCResidentialIPv458
AS6736Institute for Research in Fundamental SciencesEducationIPv413

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-19 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.17M 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.