Observed topology

AS38255 FITI-AS-AP China Education and Research Network CERNET

Unclassified APNIC

Upstreams 4 carry this network

Downstreams 4,098 this network carries

Adjacent (IPv4) 3

Adjacent (IPv6) 4,102

Upstream graph Who carries AS38255, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS38255 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS38255: 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.

AS	Network	Type	Families	Paths seen
AS6939	Hurricane Electric LLC	Transit	IPv4 IPv6	155
AS209300	Wende Tan	Unclassified	IPv6	49
AS24239	TWD2 Education and Research Network	Unclassified	IPv6	21
AS23911	China Next Generation Internet Beijing IX	Unclassified	IPv4 IPv6	13

Transit

Downstream networks

All 4,098

Networks for which AS38255 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS142664	China Education and Research Network (CERNET)	Unclassified	IPv6	8,738
AS9425	Future Internet Technology Infrastructure (FITI)	Education	IPv6	74
AS142690	China Education and Research Network (CERNET)	Unclassified	IPv6	72
AS38272	China Education and Research Network (CERNET)	Unclassified	IPv6	37
AS142650	China Education and Research Network (CERNET)	Unclassified	IPv6	37
AS142651	China Education and Research Network (CERNET)	Unclassified	IPv6	37
AS142652	China Education and Research Network (CERNET)	Unclassified	IPv6	37
AS142654	China Education and Research Network (CERNET)	Unclassified	IPv6	37
AS142655	China Education and Research Network (CERNET)	Unclassified	IPv6	37
AS142656	China Education and Research Network (CERNET)	Unclassified	IPv6	37

All 4,098 downstreams →

Adjacency

Adjacent networks

All 4,102

Every AS seen directly next to AS38255 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS6939	Hurricane Electric LLC	Transit	IPv4 IPv6	151,012
AS23911	China Next Generation Internet Beijing IX	Unclassified	IPv6	11,841
AS142664	China Education and Research Network (CERNET)	Unclassified	IPv6	8,738
AS9425	Future Internet Technology Infrastructure (FITI)	Education	IPv6	1,554
AS38272	China Education and Research Network (CERNET)	Unclassified	IPv6	1,475
AS24239	TWD2 Education and Research Network	Unclassified	IPv6	89
AS142690	China Education and Research Network (CERNET)	Unclassified	IPv6	72
AS142669	China Education and Research Network (CERNET)	Unclassified	IPv6	71
AS209300	Wende Tan	Unclassified	IPv6	49
AS142650	China Education and Research Network (CERNET)	Unclassified	IPv6	37

All 4,102 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-15 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.09M 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.