asn.dev

Observed topology

AS36103 CENTRALUTAH - Central Utah Telephone, Inc.

Unclassified ARIN Cable/DSL/ISP

Upstreams 4 carry this network
Downstreams 26 this network carries
Adjacent (IPv4) 29
Adjacent (IPv6) 10
Upstream graph Who carries AS36103, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS36103 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS36103: 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 IPv67,044
AS1299Arelion Sweden ABTransitIPv4 IPv61,461
AS174Cogent Communications, LLCTransitIPv4 IPv6679
AS3257GTT Communications Inc.TransitIPv4 IPv6326

Transit

Downstream networks

All 26

Networks for which AS36103 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS31811Manti Tele Communication CompanyUnclassifiedIPv4 IPv6994
AS5048FIBERNET Corp.HostingIPv4285
AS10444ZB, National AssociationUnclassifiedIPv4209
AS23423Wasatch BroadbandResidentialIPv4189
AS399851Mapleton CityUnclassifiedIPv4175
AS395123CENTRACOM INTERACTIVEUnclassifiedIPv4 IPv6165
AS401382Zenix Solutions, LLCUnclassifiedIPv4 IPv6133
AS36595Payment Processing Inc.UnclassifiedIPv4105
AS54900Alianza Inc.HostingIPv4 IPv686
AS25655Overstock.comUnclassifiedIPv479

All 26 downstreams →

Adjacency

Adjacent networks

All 30

Every AS seen directly next to AS36103 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6939Hurricane Electric LLCTransitIPv4 IPv69,480
AS1299Arelion Sweden ABTransitIPv4 IPv61,935
AS31811Manti Tele Communication CompanyUnclassifiedIPv4 IPv6994
AS174Cogent Communications, LLCTransitIPv4 IPv6976
AS3257GTT Communications Inc.TransitIPv4 IPv6418
AS5048FIBERNET Corp.HostingIPv4285
AS10444ZB, National AssociationUnclassifiedIPv4209
AS23423Wasatch BroadbandResidentialIPv4189
AS399851Mapleton CityUnclassifiedIPv4175
AS395123CENTRACOM INTERACTIVEUnclassifiedIPv4 IPv6165

All 30 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-11 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 73.24M 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.