asn.dev

Observed topology

AS13576 SDNW-13576 - SDN Communications

Residential ARIN

Upstreams 6 carry this network
Downstreams 51 this network carries
Adjacent (IPv4) 58
Adjacent (IPv6) 15
Upstream graph Who carries AS13576, and who carries them, drawn as a map up to the transit-free core. 2 exchanges Where AS13576 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS13576: 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 IPv63,481
AS1299Arelion Sweden ABTransitIPv4 IPv6647
AS174Cogent Communications, LLCTransitIPv4 IPv6293
AS2914NTT America, Inc.TransitIPv4 IPv6205
AS3257GTT Communications Inc.TransitIPv4 IPv6129
AS393417SDN CommunicationsUnclassifiedIPv46

Transit

Downstream networks

All 51

Networks for which AS13576 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS15204INTERSTATE TELECOMMUNICATIONS COOPERATIVE, INC.UnclassifiedIPv4 IPv63,014
AS14955Northern Valley Communications LLCUnclassifiedIPv42,459
AS6580Golden West Telecommunications Coop., Inc.ResidentialIPv4 IPv61,795
AS402159Valley FiberComUnclassifiedIPv41,560
AS401415Alliance CommunicationsUnclassifiedIPv41,416
AS63172Venture Communications CooperativeUnclassifiedIPv4 IPv61,400
AS399439Mitchell TelecomUnclassifiedIPv41,040
AS18785Santel Communications Cooperative, Inc.UnclassifiedIPv4 IPv6815
AS22223MVTV WirelessUnclassifiedIPv4 IPv6674
AS6312TrioTel Communications, Inc.ResidentialIPv4649

All 51 downstreams →

Adjacency

Adjacent networks

All 58

Every AS seen directly next to AS13576 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6939Hurricane Electric LLCTransitIPv4 IPv618,817
AS1299Arelion Sweden ABTransitIPv4 IPv63,123
AS15204INTERSTATE TELECOMMUNICATIONS COOPERATIVE, INC.UnclassifiedIPv4 IPv63,014
AS14955Northern Valley Communications LLCUnclassifiedIPv42,459
AS6580Golden West Telecommunications Coop., Inc.ResidentialIPv4 IPv61,795
AS174Cogent Communications, LLCTransitIPv4 IPv61,659
AS402159Valley FiberComUnclassifiedIPv41,560
AS401415Alliance CommunicationsUnclassifiedIPv41,416
AS63172Venture Communications CooperativeUnclassifiedIPv4 IPv61,400
AS399439Mitchell TelecomUnclassifiedIPv41,104

All 58 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.