asn.dev

Observed topology

AS55821 RADIUSTELECOMS-AS-AP RADIUS TELECOMS, INC.

Unclassified APNIC

Upstreams 21 carry this network
Downstreams 27 this network carries
Adjacent (IPv4) 47
Adjacent (IPv6) 20
Upstream graph Who carries AS55821, and who carries them, drawn as a map up to the transit-free core. 11 exchanges Where AS55821 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 21

Networks observed carrying traffic for AS55821: 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
AS63927RISEResidentialIPv4 IPv61,408
AS6939Hurricane Electric LLCTransitIPv4 IPv6603
AS174Cogent Communications, LLCTransitIPv4 IPv6497
AS3356Level 3 Parent, LLCTransitIPv4 IPv6488
AS2914NTT America, Inc.TransitIPv4 IPv6423
AS4637Telstra GlobalUnclassifiedIPv4 IPv6310
AS3491PCCW Global (HK) Ltd.TransitIPv4 IPv6222
AS701Verizon BusinessResidentialIPv488
AS17639Converge ICT Solutions Inc.UnclassifiedIPv4 IPv686
AS24482SG.GSHostingIPv4 IPv686

All 21 upstreams →

Transit

Downstream networks

All 27

Networks for which AS55821 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS4759TEXTRON CORPORATIONUnclassifiedIPv41,984
AS453518th Floor ELJ Communications CenterUnclassifiedIPv4348
AS21433Accenture UK LimitedUnclassifiedIPv4245
AS23887PRODATANET INC.UnclassifiedIPv4240
AS152326RTI-PLDT Network InfraUnclassifiedIPv4 IPv6129
AS135592Solaire Resort & CasinoUnclassifiedIPv4120
AS137487Manila Electric CompanyUnclassifiedIPv4 IPv6104
AS13335Cloudflare, Inc.HostingIPv4 IPv695
AS153495OFiberUnclassifiedIPv4 IPv687
AS141016SM Investments CorporationUnclassifiedIPv461

All 27 downstreams →

Adjacency

Adjacent networks

All 48

Every AS seen directly next to AS55821 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS4759TEXTRON CORPORATIONUnclassifiedIPv41,984
AS63927RISEResidentialIPv4 IPv61,408
AS3356Level 3 Parent, LLCTransitIPv4 IPv61,186
AS174Cogent Communications, LLCTransitIPv4 IPv61,151
AS2914NTT America, Inc.TransitIPv4 IPv61,092
AS6939Hurricane Electric LLCTransitIPv4 IPv61,082
AS4637Telstra GlobalUnclassifiedIPv4 IPv6815
AS3491PCCW Global (HK) Ltd.TransitIPv4 IPv6658
AS453518th Floor ELJ Communications CenterUnclassifiedIPv4348
AS21433Accenture UK LimitedUnclassifiedIPv4245

All 48 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-16 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.23M 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.