asn.dev

Observed topology

AS29457 OPTIONS-AS Options Technology Ltd

Unclassified RIPE

Upstreams 18 carry this network
Downstreams 1 this network carries
Adjacent (IPv4) 19
Adjacent (IPv6) 2
Upstream graph Who carries AS29457, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS29457 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 18

Networks observed carrying traffic for AS29457: 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
AS6461Zayo BandwidthTransitIPv4 IPv61,492
AS2914NTT America, Inc.TransitIPv4344
AS3257GTT Communications Inc.TransitIPv4278
AS8220COLT Technology Services Group LimitedHostingIPv4217
AS30844Liquid Telecommunications LtdUnclassifiedIPv4176
AS10103HK Broadband Network Ltd.ResidentialIPv4153
AS4637Telstra GlobalUnclassifiedIPv4148
AS13789Unitas GlobalUnclassifiedIPv4122
AS3561CenturyLink Communications, LLCHostingIPv4 IPv6104
AS24247PacketFabric (Hong Kong) LimitedUnclassifiedIPv470

All 18 upstreams →

Transit

Downstream networks

inferred

Networks for which AS29457 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS47351Red Technology Solutions LimitedUnclassifiedIPv415

Adjacency

Adjacent networks

All 19

Every AS seen directly next to AS29457 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6461Zayo BandwidthTransitIPv4 IPv61,492
AS2914NTT America, Inc.TransitIPv4359
AS3257GTT Communications Inc.TransitIPv4278
AS8220COLT Technology Services Group LimitedHostingIPv4217
AS30844Liquid Telecommunications LtdUnclassifiedIPv4176
AS10103HK Broadband Network Ltd.ResidentialIPv4153
AS4637Telstra GlobalUnclassifiedIPv4148
AS13789Unitas GlobalUnclassifiedIPv4122
AS3561CenturyLink Communications, LLCHostingIPv4 IPv6104
AS24247PacketFabric (Hong Kong) LimitedUnclassifiedIPv470

All 19 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.