asn.dev

Observed topology

AS19752 HYDROONETELECOM - Hydro One Telecom Inc.

Unclassified ARIN

Upstreams 8 carry this network
Downstreams 26 this network carries
Adjacent (IPv4) 33
Adjacent (IPv6) 12
Upstream graph Who carries AS19752, and who carries them, drawn as a map up to the transit-free core. 3 exchanges Where AS19752 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS19752: 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
AS1299Arelion Sweden ABTransitIPv4 IPv6580
AS3356Level 3 Parent, LLCTransitIPv4 IPv6508
AS6939Hurricane Electric LLCTransitIPv4 IPv6262
AS174Cogent Communications, LLCTransitIPv4 IPv6134
AS1403EBOXResidentialIPv4 IPv656
AS22652Videotron LteeResidentialIPv4 IPv656
AS24482SG.GSHostingIPv4 IPv630
AS394256Tech Futures Interactive Inc.UnclassifiedIPv426

Transit

Downstream networks

All 26

Networks for which AS19752 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS11727Bruce TelecomResidentialIPv4 IPv61,772
AS819LARG*net London and Region Global Computer NetworkUnclassifiedIPv4533
AS21992Ontario HealthUnclassifiedIPv4462
AS26884Vale Canada LimitedUnclassifiedIPv4456
AS62706Six Nations InternetUnclassifiedIPv4348
AS29773Carleton UniversityUnclassifiedIPv4 IPv6249
AS857GONETUnclassifiedIPv4197
AS393994Brantford HydroUnclassifiedIPv4126
AS26838Magna International Inc.UnclassifiedIPv4112
AS40867Continuum Online Services Ltd.ResidentialIPv491

All 26 downstreams →

Adjacency

Adjacent networks

All 34

Every AS seen directly next to AS19752 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS3356Level 3 Parent, LLCTransitIPv4 IPv62,413
AS1299Arelion Sweden ABTransitIPv4 IPv62,366
AS11727Bruce TelecomResidentialIPv4 IPv62,003
AS174Cogent Communications, LLCTransitIPv4 IPv6950
AS21992Ontario HealthUnclassifiedIPv4925
AS6939Hurricane Electric LLCTransitIPv4 IPv6907
AS819LARG*net London and Region Global Computer NetworkUnclassifiedIPv4576
AS26884Vale Canada LimitedUnclassifiedIPv4456
AS62706Six Nations InternetUnclassifiedIPv4348
AS22652Videotron LteeResidentialIPv4 IPv6283

All 34 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-08 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.00M 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.