asn.dev

Observed topology

AS14203 JUNIPER-NETWORKS

Unclassified ARIN

Upstreams 11 carry this network
Downstreams 0 this network carries
Adjacent (IPv4) 11
Adjacent (IPv6) 6
Upstream graph Who carries AS14203, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS14203 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 11

Networks observed carrying traffic for AS14203: 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
AS2914NTT America, Inc.TransitIPv4 IPv6481
AS33650Comcast Cable Communications, LLCUnclassifiedIPv4 IPv6258
AS7018AT&T Enterprises, LLCResidentialIPv4142
AS33651Comcast Cable Communications, LLCUnclassifiedIPv4 IPv6127
AS20055Wholesail networks LLCResidentialIPv4 IPv698
AS6939Hurricane Electric LLCTransitIPv4 IPv672
AS7015Comcast Cable Communications, LLCResidentialIPv471
AS33667Comcast Cable Communications, LLCUnclassifiedIPv460
AS209CenturyLink Communications, LLCResidentialIPv431
AS24482SG.GSHostingIPv4 IPv66

All 11 upstreams →

Transit

Downstream networks

inferred

Networks for which AS14203 was observed as the last hop before the origin, meaning it appears to provide them transit.

No downstream observed. This network does not appear to carry transit for anyone.

Adjacency

Adjacent networks

All 11

Every AS seen directly next to AS14203 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS2914NTT America, Inc.TransitIPv4 IPv6481
AS33650Comcast Cable Communications, LLCUnclassifiedIPv4 IPv6258
AS7018AT&T Enterprises, LLCResidentialIPv4142
AS33651Comcast Cable Communications, LLCUnclassifiedIPv4 IPv6127
AS20055Wholesail networks LLCResidentialIPv4 IPv698
AS6939Hurricane Electric LLCTransitIPv4 IPv672
AS7015Comcast Cable Communications, LLCResidentialIPv471
AS33667Comcast Cable Communications, LLCUnclassifiedIPv460
AS209CenturyLink Communications, LLCResidentialIPv431
AS24482SG.GSHostingIPv4 IPv66

All 11 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-17 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.18M 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.