asn.dev

Observed topology

AS38731 VTDC-AS-VN Vietel - CHT Compamy Ltd

Hosting APNIC

Upstreams 1 carry this network
Downstreams 69 this network carries
Adjacent (IPv4) 69
Adjacent (IPv6) 28
Upstream graph Who carries AS38731, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS38731 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS38731: 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
AS7552Viettel GroupMobileIPv4 IPv66,817

Transit

Downstream networks

All 69

Networks for which AS38731 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS131428Rainbow E-Commerce Company LimitedUnclassifiedIPv4986
AS149147GOFIBER SOFTWARE TECHNOLOGY COMPANY LIMITEDUnclassifiedIPv4 IPv6646
AS153410NEXT STEP TECHNOLOGY JOINT STOCK COMPANYUnclassifiedIPv4522
AS131353NhanHoa Software companyUnclassifiedIPv4464
AS131427AOHOAVIET-VNUnclassifiedIPv4464
AS135942Adsota CorporationUnclassifiedIPv4 IPv6439
AS149113ODB VIET NAM COMPANY LIMITEDUnclassifiedIPv4 IPv6359
AS149117VTC MOBILE SERVICES JOINT STOCK COMPANYUnclassifiedIPv4 IPv6325
AS131426MISA-VNUnclassifiedIPv4 IPv6324
AS135987Reload Company LimitedUnclassifiedIPv4 IPv6323

All 69 downstreams →

Adjacency

Adjacent networks

All 71

Every AS seen directly next to AS38731 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS7552Viettel GroupMobileIPv4 IPv619,329
AS131428Rainbow E-Commerce Company LimitedUnclassifiedIPv4986
AS149147GOFIBER SOFTWARE TECHNOLOGY COMPANY LIMITEDUnclassifiedIPv4 IPv6646
AS131418SHOPEEPAY JOINT STOCK COMPANYUnclassifiedIPv4580
AS153410NEXT STEP TECHNOLOGY JOINT STOCK COMPANYUnclassifiedIPv4522
AS131353NhanHoa Software companyUnclassifiedIPv4464
AS131427AOHOAVIET-VNUnclassifiedIPv4464
AS135942Adsota CorporationUnclassifiedIPv4 IPv6439
AS149113ODB VIET NAM COMPANY LIMITEDUnclassifiedIPv4 IPv6359
AS149117VTC MOBILE SERVICES JOINT STOCK COMPANYUnclassifiedIPv4 IPv6325

All 71 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-17 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.18M 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.