asn.dev

Observed topology

AS14773 LANLEB-IU13 - Lancaster Lebanon Intermediate Unit 13

Unclassified ARIN Educational/Research

Upstreams 10 carry this network
Downstreams 8 this network carries
Adjacent (IPv4) 16
Adjacent (IPv6) 12
Upstream graph Who carries AS14773, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS14773 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS14773: 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
AS6939Hurricane Electric LLCTransitIPv4 IPv6355
AS6461Zayo BandwidthTransitIPv4 IPv6258
AS3737PenTeleData Inc.ResidentialIPv4 IPv645
AS26801Zito Media, L.P.UnclassifiedIPv4 IPv623
AS22652Videotron LteeResidentialIPv4 IPv621
AS24482SG.GSHostingIPv4 IPv615
AS25091IP-Max SAUnclassifiedIPv69
AS9002RETN LimitedUnclassifiedIPv68
AS293ESnetUnclassifiedIPv46
AS37721Virtual Technologies & SolutionsResidentialIPv46

Transit

Downstream networks

inferred

Networks for which AS14773 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS31763Berks County Intermediate UnitUnclassifiedIPv4828
AS3783Allegheny Intermediate UnitEducationIPv4108
AS394781Reading School DistrictUnclassifiedIPv4 IPv696
AS395182Hempfield School DistrictUnclassifiedIPv4 IPv696
AS395631Kutztown Area School DistrictUnclassifiedIPv4 IPv695
AS36228Lancaster Bible CollegeUnclassifiedIPv459
AS40674Rose Tree Media School DistrictUnclassifiedIPv458
AS398574Commonwealth Charter AcademyUnclassifiedIPv450

Adjacency

Adjacent networks

All 18

Every AS seen directly next to AS14773 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6461Zayo BandwidthTransitIPv4 IPv61,012
AS31763Berks County Intermediate UnitUnclassifiedIPv4828
AS6939Hurricane Electric LLCTransitIPv4 IPv6661
AS3737PenTeleData Inc.ResidentialIPv4 IPv6227
AS3783Allegheny Intermediate UnitEducationIPv4 IPv6163
AS394781Reading School DistrictUnclassifiedIPv4 IPv696
AS395182Hempfield School DistrictUnclassifiedIPv4 IPv696
AS395631Kutztown Area School DistrictUnclassifiedIPv4 IPv695
AS22652Videotron LteeResidentialIPv4 IPv683
AS26801Zito Media, L.P.UnclassifiedIPv4 IPv679

All 18 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-14 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.46M 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.