asn.dev

Observed topology

AS13333 CCI-PA-AS-1 - Fidium

Residential ARIN

Upstreams 3 carry this network
Downstreams 9 this network carries
Adjacent (IPv4) 11
Adjacent (IPv6) 3
Upstream graph Who carries AS13333, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS13333 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS13333: 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
AS6461Zayo BandwidthTransitIPv4 IPv61,217
AS174Cogent Communications, LLCTransitIPv4 IPv6755
AS6939Hurricane Electric LLCTransitIPv4324

Transit

Downstream networks

inferred

Networks for which AS13333 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS36576Hearst-Argyle Television, Inc.UnclassifiedIPv475
AS27200Society of Automotive EngineersUnclassifiedIPv460
AS40902Curtiss-Wright Electro-Mechanical CorporationUnclassifiedIPv458
AS395440St. Clair Memorial HospitalUnclassifiedIPv456
AS11009Carlow UniversityEducationIPv444
AS40836VECTOR SECURITY INCUnclassifiedIPv435
AS35962Management Science Associates, Inc.UnclassifiedIPv628
AS400319CompleteBankData.comUnclassifiedIPv44
AS399305Westinghouse Air Brake Technologies CorporationUnclassifiedIPv42

Adjacency

Adjacent networks

All 12

Every AS seen directly next to AS13333 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6461Zayo BandwidthTransitIPv4 IPv61,449
AS174Cogent Communications, LLCTransitIPv4 IPv6885
AS6939Hurricane Electric LLCTransitIPv4324
AS36576Hearst-Argyle Television, Inc.UnclassifiedIPv475
AS27200Society of Automotive EngineersUnclassifiedIPv460
AS40902Curtiss-Wright Electro-Mechanical CorporationUnclassifiedIPv458
AS395440St. Clair Memorial HospitalUnclassifiedIPv456
AS11009Carlow UniversityEducationIPv444
AS40836VECTOR SECURITY INCUnclassifiedIPv435
AS35962Management Science Associates, Inc.UnclassifiedIPv628

All 12 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-13 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.40M 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.