asn.dev

Observed topology

AS12703 PULSANT-AS

Hosting RIPE

Upstreams 29 carry this network
Downstreams 25 this network carries
Adjacent (IPv4) 54
Adjacent (IPv6) 30
Upstream graph Who carries AS12703, and who carries them, drawn as a map up to the transit-free core. 4 exchanges Where AS12703 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 29

Networks observed carrying traffic for AS12703: 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 IPv6794
AS174Cogent Communications, LLCTransitIPv4 IPv6648
AS3257GTT Communications Inc.TransitIPv4 IPv6509
AS6939Hurricane Electric LLCTransitIPv4 IPv6480
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6189
AS50304Blix Solutions ASUnclassifiedIPv4118
AS24482SG.GSHostingIPv4 IPv667
AS37721Virtual Technologies & SolutionsResidentialIPv4 IPv667
AS50300CustodianDC LimitedUnclassifiedIPv4 IPv667
AS3333Reseaux IP Europeens Network Coordination Centre (RIPE NCC)UnclassifiedIPv4 IPv666

All 29 upstreams →

Transit

Downstream networks

All 25

Networks for which AS12703 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS42332EKCO LONDON LIMITEDUnclassifiedIPv4 IPv6571
AS201471Bigstep Cloud LimitedUnclassifiedIPv4 IPv6420
AS60610Amito LtdUnclassifiedIPv4 IPv6302
AS39208I.P. Integration LimitedUnclassifiedIPv4247
AS210282Frontier Technology LimitedUnclassifiedIPv4118
AS43081World News PTE. LTDUnclassifiedIPv4 IPv692
AS48686oRe Networks LimitedUnclassifiedIPv4 IPv692
AS202212DWebs LtdHostingIPv4 IPv692
AS206681Ivista LimitedUnclassifiedIPv4 IPv692
AS41489Watchfront LimitedHostingIPv4 IPv683

All 25 downstreams →

Adjacency

Adjacent networks

All 60

Every AS seen directly next to AS12703 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS6461Zayo BandwidthTransitIPv4 IPv61,908
AS3257GTT Communications Inc.TransitIPv4 IPv61,344
AS6939Hurricane Electric LLCTransitIPv4 IPv61,115
AS60610Amito LtdUnclassifiedIPv4 IPv6952
AS174Cogent Communications, LLCTransitIPv4 IPv6727
AS42332EKCO LONDON LIMITEDUnclassifiedIPv4 IPv6571
AS201471Bigstep Cloud LimitedUnclassifiedIPv4 IPv6420
AS34549meerfarbig GmbH & Co. KGHostingIPv4 IPv6387
AS42689Glide Student & Residential LimitedResidentialIPv4 IPv6329
AS39208I.P. Integration LimitedUnclassifiedIPv4247

All 60 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-25 12:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.17M 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.