asn.dev

Observed topology

AS2152 CENIC-2152

Unclassified RIPE Educational/Research

Upstreams 6 carry this network
Downstreams 148 this network carries
Adjacent (IPv4) 151
Adjacent (IPv6) 38
Upstream graph Who carries AS2152, and who carries them, drawn as a map up to the transit-free core. 6 exchanges Where AS2152 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS2152: 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
AS3356Level 3 Parent, LLCTransitIPv46,382
AS2153CENICUnclassifiedIPv4 IPv63,244
AS6939Hurricane Electric LLCTransitIPv4 IPv61,051
AS6461Zayo BandwidthTransitIPv4718
AS11164Internet2EducationIPv4 IPv6665
AS396450Internet2UnclassifiedIPv456

Transit

Downstream networks

All 148

Networks for which AS2152 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS2920Los Angeles County Office of EducationEducationIPv411,219
AS18558Riverside County Office of EducationUnclassifiedIPv4 IPv68,875
AS16509Amazon.com, Inc.HostingIPv44,425
AS22315San Bernardino County Superintendent of SchoolsUnclassifiedIPv43,776
AS23024Orange County Department of EducationUnclassifiedIPv43,776
AS8151UNINETMobileIPv43,678
AS54179Ventura County Office of EducationUnclassifiedIPv43,532
AS395226Sacramento County Office of EducationUnclassifiedIPv4 IPv62,177
AS11404Wave BroadbandResidentialIPv41,834
AS13335Cloudflare, Inc.HostingIPv41,764

All 148 downstreams →

Adjacency

Adjacent networks

All 151

Every AS seen directly next to AS2152 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4596,375
AS11164Internet2EducationIPv4 IPv6170,277
AS6461Zayo BandwidthTransitIPv4 IPv6143,640
AS6939Hurricane Electric LLCTransitIPv4 IPv6134,480
AS2153CENICUnclassifiedIPv4 IPv626,292
AS2920Los Angeles County Office of EducationEducationIPv411,283
AS7922Comcast Cable Communications, LLCResidentialIPv410,134
AS18558Riverside County Office of EducationUnclassifiedIPv4 IPv69,947
AS13335Cloudflare, Inc.HostingIPv48,143
AS3786LG DACOM CorporationUnclassifiedIPv47,840

All 151 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-29 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.36M 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.