asn.dev

Observed topology

AS38733 CMCTELECOM-VN CMC Telecom Infrastructure Company

Unclassified ARIN

Upstreams 1 carry this network
Downstreams 14 this network carries
Adjacent (IPv4) 15
Adjacent (IPv6) 7
Upstream graph Who carries AS38733, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS38733 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS38733: 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
AS45903CMC Telecom Infrastructure CompanyResidentialIPv4 IPv61,800

Transit

Downstream networks

All 14

Networks for which AS38733 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS135901Phuong Dong technology solution company limitedUnclassifiedIPv4720
AS401541OSIEUnclassifiedIPv4 IPv6519
AS150826VR VIET NAM COMPANY LIMITEDUnclassifiedIPv4 IPv6316
AS131353NhanHoa Software companyUnclassifiedIPv4180
AS153017TIDADIGI COMPANY LIMITEDUnclassifiedIPv4 IPv6156
AS132206DC DIGITAL DATA HUB COMPANY LIMITEDUnclassifiedIPv4122
AS149130TEKNIX CLOUD TECHNOLOGY INFRASTRUCTURE JOINT STOCK COMPANYUnclassifiedIPv4120
AS149085E-DATA TECHNOLOGY SERVICE COMPANY LIMITEDUnclassifiedIPv4 IPv696
AS150846Room 1508, 15th Floor, Vincom Center Building, 72 Le Thanh Ton, Ben Nghe Ward, District 1, Ho Chi Minh City, VietnamUnclassifiedIPv4 IPv696
AS150884ANZIX Joint Stock CompanyUnclassifiedIPv4 IPv696

All 14 downstreams →

Adjacency

Adjacent networks

All 15

Every AS seen directly next to AS38733 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS45903CMC Telecom Infrastructure CompanyResidentialIPv4 IPv65,445
AS401541OSIEUnclassifiedIPv4 IPv61,415
AS135901Phuong Dong technology solution company limitedUnclassifiedIPv4720
AS150826VR VIET NAM COMPANY LIMITEDUnclassifiedIPv4 IPv6436
AS131353NhanHoa Software companyUnclassifiedIPv4180
AS153017TIDADIGI COMPANY LIMITEDUnclassifiedIPv4 IPv6156
AS132206DC DIGITAL DATA HUB COMPANY LIMITEDUnclassifiedIPv4122
AS149130TEKNIX CLOUD TECHNOLOGY INFRASTRUCTURE JOINT STOCK COMPANYUnclassifiedIPv4120
AS149085E-DATA TECHNOLOGY SERVICE COMPANY LIMITEDUnclassifiedIPv4 IPv696
AS150846Room 1508, 15th Floor, Vincom Center Building, 72 Le Thanh Ton, Ben Nghe Ward, District 1, Ho Chi Minh City, VietnamUnclassifiedIPv4 IPv696

All 15 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-19 10:00 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.