asn.dev

Observed topology

AS63731 TPTECO-AS-VN TIEN PHAT TECHNOLOGY CORPORATION

Unclassified APNIC

Upstreams 8 carry this network
Downstreams 5 this network carries
Adjacent (IPv4) 13
Adjacent (IPv6) 2
Upstream graph Who carries AS63731, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS63731 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS63731: 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
AS24088Hanoi Telecom Joint Stock Company - HCMC BranchResidentialIPv4509
AS3491PCCW Global (HK) Ltd.TransitIPv4186
AS7552Viettel GroupMobileIPv4164
AS45903CMC Telecom Infrastructure CompanyResidentialIPv4 IPv6149
AS45543SaiGon Tourist cable Televition CompanyMobileIPv460
AS131429MOBIFONE CorporationUnclassifiedIPv460
AS18403FPT Telecom CompanyResidentialIPv4 IPv631
AS38731Vietel - CHT Compamy LtdHostingIPv49

Transit

Downstream networks

inferred

Networks for which AS63731 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS150837SAOVANG TELECOMMUNICATION INFRASTRUCTURE JOINT STOCK COMPANYUnclassifiedIPv4177
AS56155Tuong Minh Software Solutions Company LimitedUnclassifiedIPv4114
AS153428TTP GROUP TECHNOLOGY TELECOMMUNICATION JOINT STOCK COMPANYUnclassifiedIPv4111
AS135926Phu Nhuan Jewelry Joint Stock CompanyUnclassifiedIPv410
AS38249KIS Viet Nam Securities CorporationsUnclassifiedIPv42

Adjacency

Adjacent networks

All 13

Every AS seen directly next to AS63731 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS24088Hanoi Telecom Joint Stock Company - HCMC BranchResidentialIPv4616
AS3491PCCW Global (HK) Ltd.TransitIPv4324
AS7552Viettel GroupMobileIPv4230
AS45903CMC Telecom Infrastructure CompanyResidentialIPv4 IPv6222
AS150837SAOVANG TELECOMMUNICATION INFRASTRUCTURE JOINT STOCK COMPANYUnclassifiedIPv4177
AS56155Tuong Minh Software Solutions Company LimitedUnclassifiedIPv4114
AS153428TTP GROUP TECHNOLOGY TELECOMMUNICATION JOINT STOCK COMPANYUnclassifiedIPv4111
AS131429MOBIFONE CorporationUnclassifiedIPv478
AS45543SaiGon Tourist cable Televition CompanyMobileIPv460
AS18403FPT Telecom CompanyResidentialIPv4 IPv643

All 13 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.