asn.dev

Observed topology

AS397423 TIER-NET

Hosting ARIN Content

Upstreams 14 carry this network
Downstreams 28 this network carries
Adjacent (IPv4) 40
Adjacent (IPv6) 25
Upstream graph Who carries AS397423, and who carries them, drawn as a map up to the transit-free core. 4 exchanges Where AS397423 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 14

Networks observed carrying traffic for AS397423: 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
AS174Cogent Communications, LLCTransitIPv4 IPv68,086
AS6461Zayo BandwidthTransitIPv4 IPv64,916
AS3356Level 3 Parent, LLCTransitIPv4 IPv63,289
AS6939Hurricane Electric LLCTransitIPv4 IPv61,437
AS40676Psychz NetworksHostingIPv4 IPv61,043
AS137409GSL Networks Pty LTDUnclassifiedIPv4120
AS14907Wikimedia Foundation Inc.HostingIPv4 IPv6105
AS22652Videotron LteeResidentialIPv4 IPv699
AS971PureVoltage Hosting Inc.UnclassifiedIPv497
AS293ESnetUnclassifiedIPv457

All 14 upstreams →

Transit

Downstream networks

All 28

Networks for which AS397423 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS400031GigaPacket LLCUnclassifiedIPv41,044
AS399122VPS House Technology Group LLCUnclassifiedIPv4 IPv61,041
AS64245DigitalFyre Internet Solutions, LLC.UnclassifiedIPv4 IPv6770
AS400402Hosting Bot, LLCHostingIPv4 IPv6669
AS219048Sachin Kothawade trading as SUN IT SOLUTIONSUnclassifiedIPv4640
AS394760Sauce Servers LLCUnclassifiedIPv4 IPv6559
AS395898TND, LLCUnclassifiedIPv4 IPv6549
AS25846Cloudnium LLCUnclassifiedIPv4 IPv6432
AS402072OZONTI NETWORK LLCUnclassifiedIPv4 IPv6432
AS996JY Mobile CommunicationsUnclassifiedIPv4236

All 28 downstreams →

Adjacency

Adjacent networks

All 42

Every AS seen directly next to AS397423 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS174Cogent Communications, LLCTransitIPv4 IPv611,774
AS6461Zayo BandwidthTransitIPv4 IPv67,245
AS3356Level 3 Parent, LLCTransitIPv4 IPv63,993
AS6939Hurricane Electric LLCTransitIPv4 IPv63,670
AS40676Psychz NetworksHostingIPv4 IPv61,348
AS400402Hosting Bot, LLCHostingIPv4 IPv61,129
AS25846Cloudnium LLCUnclassifiedIPv4 IPv61,097
AS400031GigaPacket LLCUnclassifiedIPv41,044
AS399122VPS House Technology Group LLCUnclassifiedIPv4 IPv61,041
AS64245DigitalFyre Internet Solutions, LLC.UnclassifiedIPv4 IPv61,018

All 42 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-23 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.15M 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.