asn.dev

Observed topology

AS17378 AS17378 - TierPoint, LLC

Hosting ARIN NSP

Upstreams 23 carry this network
Downstreams 123 this network carries
Adjacent (IPv4) 145
Adjacent (IPv6) 24
Upstream graph Who carries AS17378, and who carries them, drawn as a map up to the transit-free core. 9 exchanges Where AS17378 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 23

Networks observed carrying traffic for AS17378: 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 IPv67,352
AS3356Level 3 Parent, LLCTransitIPv4 IPv66,366
AS174Cogent Communications, LLCTransitIPv4 IPv63,635
AS6939Hurricane Electric LLCTransitIPv4 IPv63,122
AS3257GTT Communications Inc.TransitIPv4 IPv62,517
AS22652Videotron LteeResidentialIPv4 IPv6380
AS24482SG.GSHostingIPv4 IPv6255
AS852TELUS Communications Inc.ResidentialIPv4 IPv6231
AS293ESnetUnclassifiedIPv4225
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv6201

All 23 upstreams →

Transit

Downstream networks

All 123

Networks for which AS17378 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS24459RIMU HOSTING LIMITEDHostingIPv4 IPv61,715
AS55045TekTonicUnclassifiedIPv4 IPv6860
AS33168INLAND IMAGING L.L.C.UnclassifiedIPv4784
AS40476Scala Hosting LLCHostingIPv4603
AS36745Caleres, Inc.UnclassifiedIPv4480
AS1982Northwest Nexus Inc.UnclassifiedIPv4422
AS23357-Reserved AS-UnclassifiedIPv4420
AS19107Ymax Communications CorpUnclassifiedIPv4360
AS22192Pennsylvania State System of Higher EducationUnclassifiedIPv4338
AS32373AssetWorks, Inc.UnclassifiedIPv4300

All 123 downstreams →

Adjacency

Adjacent networks

All 147

Every AS seen directly next to AS17378 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6461Zayo BandwidthTransitIPv4 IPv612,071
AS3356Level 3 Parent, LLCTransitIPv4 IPv69,993
AS174Cogent Communications, LLCTransitIPv4 IPv65,676
AS6939Hurricane Electric LLCTransitIPv4 IPv64,823
AS3257GTT Communications Inc.TransitIPv4 IPv64,165
AS24459RIMU HOSTING LIMITEDHostingIPv4 IPv61,715
AS55045TekTonicUnclassifiedIPv4 IPv6860
AS33168INLAND IMAGING L.L.C.UnclassifiedIPv4784
AS40476Scala Hosting LLCHostingIPv4603
AS22652Videotron LteeResidentialIPv4 IPv6602

All 147 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-02 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.44M 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.