asn.dev

Observed topology

AS1403 EBOX

Residential ARIN

Upstreams 9 carry this network
Downstreams 202 this network carries
Adjacent (IPv4) 106
Adjacent (IPv6) 187
Upstream graph Who carries AS1403, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS1403 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS1403: 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
AS577Bell CanadaMobileIPv4 IPv610,614
AS6939Hurricane Electric LLCTransitIPv42,088
AS3303Swisscom (Schweiz) AGResidentialIPv4444
AS852TELUS Communications Inc.ResidentialIPv4 IPv6243
AS20473The Constant Company, LLCHostingIPv620
AS22652Videotron LteeResidentialIPv620
AS24482SG.GSHostingIPv620
AS394256Tech Futures Interactive Inc.UnclassifiedIPv620
AS6327Shaw CommunicationsResidentialIPv41

Transit

Downstream networks

All 202

Networks for which AS1403 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS577Bell CanadaMobileIPv4 IPv632,584
AS6327Shaw CommunicationsResidentialIPv4 IPv67,936
AS16509Amazon.com, Inc.HostingIPv4 IPv66,882
AS13335Cloudflare, Inc.HostingIPv4 IPv64,778
AS8075Microsoft CorporationHostingIPv4 IPv62,610
AS15169Google LLCHostingIPv4 IPv62,152
AS852TELUS Communications Inc.ResidentialIPv4 IPv61,412
AS16276OVH SASHostingIPv4 IPv61,363
AS19515Oricom Internet inc.UnclassifiedIPv4 IPv6914
AS36351IBM CloudHostingIPv4 IPv6666

All 202 downstreams →

Adjacency

Adjacent networks

All 205

Every AS seen directly next to AS1403 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS577Bell CanadaMobileIPv4 IPv62,120,635
AS6939Hurricane Electric LLCTransitIPv4 IPv6462,678
AS13335Cloudflare, Inc.HostingIPv4 IPv617,692
AS32787Akamai Technologies, Inc.HostingIPv4 IPv613,058
AS16509Amazon.com, Inc.HostingIPv4 IPv611,991
AS6327Shaw CommunicationsResidentialIPv4 IPv610,940
AS15169Google LLCHostingIPv4 IPv610,704
AS1828Unitas GlobalUnclassifiedIPv4 IPv64,428
AS35280F5 Networks SARLHostingIPv4 IPv63,770
AS852TELUS Communications Inc.ResidentialIPv4 IPv63,387

All 205 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-11 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.47M 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.