asn.dev

Observed topology

AS12042 ENVENTIS

Residential ARIN Cable/DSL/ISP

Upstreams 6 carry this network
Downstreams 41 this network carries
Adjacent (IPv4) 46
Adjacent (IPv6) 12
Upstream graph Who carries AS12042, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS12042 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS12042: 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 IPv63,752
AS174Cogent Communications, LLCTransitIPv4 IPv62,536
AS6939Hurricane Electric LLCTransitIPv660
AS13576SDN CommunicationsResidentialIPv441
AS64289Macarne.comUnclassifiedIPv432
AS57University of MinnesotaUnclassifiedIPv414

Transit

Downstream networks

All 41

Networks for which AS12042 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS26039Athene Annuity and Life CompanyUnclassifiedIPv4388
AS11517Blue Cross & Blue Shield of MinnesotaUnclassifiedIPv4369
AS21873Northeast Service Cooperative (ASN-NEWMN)UnclassifiedIPv4364
AS16595The Toro CompanyUnclassifiedIPv4180
AS14230ARK Data Centers LLCUnclassifiedIPv4 IPv6176
AS22111Mattersight CorporationUnclassifiedIPv4174
AS25754Blueprint America, Inc.UnclassifiedIPv4174
AS53740optbit LLCUnclassifiedIPv4 IPv6169
AS400115Treehouse Broadband, LLCUnclassifiedIPv4 IPv6128
AS36677Katun CorporationUnclassifiedIPv4117

All 41 downstreams →

Adjacency

Adjacent networks

All 47

Every AS seen directly next to AS12042 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6461Zayo BandwidthTransitIPv4 IPv66,322
AS174Cogent Communications, LLCTransitIPv4 IPv63,796
AS26039Athene Annuity and Life CompanyUnclassifiedIPv4388
AS11517Blue Cross & Blue Shield of MinnesotaUnclassifiedIPv4369
AS21873Northeast Service Cooperative (ASN-NEWMN)UnclassifiedIPv4364
AS14230ARK Data Centers LLCUnclassifiedIPv4 IPv6279
AS6939Hurricane Electric LLCTransitIPv6215
AS16595The Toro CompanyUnclassifiedIPv4180
AS22111Mattersight CorporationUnclassifiedIPv4174
AS25754Blueprint America, Inc.UnclassifiedIPv4174

All 47 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-26 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.14M 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.