asn.dev

Observed topology

AS133337 IDNIC-MSS-AS-ID - PT Menara Sinar Semesta

Unclassified APNIC

Upstreams 4 carry this network
Downstreams 3 this network carries
Adjacent (IPv4) 8
Adjacent (IPv6) 2
Upstream graph Who carries AS133337, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS133337 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS133337: 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
AS137352PT. Cloudata IndonesiaUnclassifiedIPv4 IPv6162
AS141137PT Media Cepat IndonesiaUnclassifiedIPv4 IPv6149
AS63494PT Inovasi Jaringan NusantaraResidentialIPv459
AS131758PT. Bali NingUnclassifiedIPv42

Transit

Downstream networks

inferred

Networks for which AS133337 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS137352PT. Cloudata IndonesiaUnclassifiedIPv475
AS58377Sentra Niaga Solusindo, PT.UnclassifiedIPv433
AS45713PT. DEWATA TELEMATIKAHostingIPv44

Adjacency

Adjacent networks

observed

Every AS seen directly next to AS133337 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS137352PT. Cloudata IndonesiaUnclassifiedIPv4 IPv6237
AS141137PT Media Cepat IndonesiaUnclassifiedIPv4 IPv6149
AS59796StormWall s.r.o.UnclassifiedIPv4109
AS63494PT Inovasi Jaringan NusantaraResidentialIPv459
AS58377Sentra Niaga Solusindo, PT.UnclassifiedIPv433
AS45713PT. DEWATA TELEMATIKAHostingIPv44
AS43298Storm Networks LLCUnclassifiedIPv43
AS131758PT. Bali NingUnclassifiedIPv42

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-02 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.44M 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.