asn.dev

Observed topology

AS29752 ZEN-SDN - Zenlayer Inc

Hosting ARIN Content

Upstreams 7 carry this network
Downstreams 22 this network carries
Adjacent (IPv4) 28
Adjacent (IPv6) 8
Upstream graph Who carries AS29752, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS29752 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS29752: 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
AS174Cogent Communications, LLCTransitIPv4 IPv6473
AS4229Zenlayer IncHostingIPv4 IPv6421
AS3257GTT Communications Inc.TransitIPv4 IPv6341
AS21859Zenlayer IncHostingIPv4 IPv6183
AS2914NTT America, Inc.TransitIPv4 IPv6154
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv6137
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv681

Transit

Downstream networks

All 22

Networks for which AS29752 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS62610Zenlayer IncUnclassifiedIPv4 IPv64,016
AS214483FiberPower LLCUnclassifiedIPv4834
AS21859Zenlayer IncHostingIPv4 IPv6326
AS399682SummitUnclassifiedIPv4176
AS152179GLOBAL COMMUNICATION NETWORK LIMITEDResidentialIPv4174
AS399452RuggedUnclassifiedIPv4118
AS22369Cloudmylab.comUnclassifiedIPv4117
AS402265Mutanet LLCUnclassifiedIPv466
AS209888Aeriandi LimitedUnclassifiedIPv459
AS402976RobeingUnclassifiedIPv458

All 22 downstreams →

Adjacency

Adjacent networks

All 28

Every AS seen directly next to AS29752 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS62610Zenlayer IncUnclassifiedIPv4 IPv638,475
AS4229Zenlayer IncHostingIPv4 IPv617,765
AS174Cogent Communications, LLCTransitIPv4 IPv612,639
AS3257GTT Communications Inc.TransitIPv4 IPv65,935
AS6762TELECOM ITALIA SPARKLE S.p.A.TransitIPv4 IPv64,320
AS21859Zenlayer IncHostingIPv4 IPv62,684
AS2914NTT America, Inc.TransitIPv4 IPv61,004
AS214483FiberPower LLCUnclassifiedIPv4834
AS6453TATA COMMUNICATIONS (AMERICA) INCTransitIPv4 IPv6304
AS399682SummitUnclassifiedIPv4176

All 28 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-05 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 73.57M 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.