asn.dev

Observed topology

AS4809 CHINATELECOM-CORE-WAN-CN2 China Telecom Next Generation Carrier Network

Unclassified ARIN NSP

Upstreams 20 carry this network
Downstreams 38 this network carries
Adjacent (IPv4) 46
Adjacent (IPv6) 33
Upstream graph Who carries AS4809, and who carries them, drawn as a map up to the transit-free core. 8 exchanges Where AS4809 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

All 20

Networks observed carrying traffic for AS4809: 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
AS23764CTGNetUnclassifiedIPv4 IPv68,522
AS1299Arelion Sweden ABTransitIPv4 IPv63,332
AS3356Level 3 Parent, LLCTransitIPv4 IPv62,158
AS2914NTT America, Inc.TransitIPv4 IPv61,387
AS9304HGC Global Communications LimitedHostingIPv4 IPv61,094
AS6939Hurricane Electric LLCTransitIPv4 IPv6867
AS3320Deutsche Telekom AGMobileIPv4 IPv6632
AS20485Joint Stock Company TransTeleComUnclassifiedIPv4 IPv6629
AS4637Telstra GlobalUnclassifiedIPv4 IPv6561
AS812Rogers Communications Canada Inc.MobileIPv4 IPv6472

All 20 upstreams →

Transit

Downstream networks

All 38

Networks for which AS4809 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS4812China Telecom (Group)ResidentialIPv4 IPv67,364
AS58777ChinaTelecom Cybersecurity TechUnclassifiedIPv41,439
AS4847China Networks Inter-ExchangeUnclassifiedIPv4 IPv6897
AS4134No.31,Jin-rong StreetResidentialIPv4 IPv6667
AS3320Deutsche Telekom AGMobileIPv4664
AS136167CHINA TELECOM (MACAU) COMPANY LIMITEDUnclassifiedIPv4 IPv6647
AS54600PEG TECH INCHostingIPv4362
AS40065CNSERVERS LLCHostingIPv4276
AS3356Level 3 Parent, LLCTransitIPv4240
AS58518China TelecomUnclassifiedIPv4239

All 38 downstreams →

Adjacency

Adjacent networks

All 53

Every AS seen directly next to AS4809 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS35710weber.digital GmbHHostingIPv477,978
AS1299Arelion Sweden ABTransitIPv4 IPv630,881
AS4134No.31,Jin-rong StreetResidentialIPv4 IPv624,098
AS3356Level 3 Parent, LLCTransitIPv4 IPv619,238
AS23764CTGNetUnclassifiedIPv4 IPv618,212
AS3320Deutsche Telekom AGMobileIPv4 IPv611,417
AS4812China Telecom (Group)ResidentialIPv4 IPv67,364
AS2914NTT America, Inc.TransitIPv4 IPv61,796
AS58777ChinaTelecom Cybersecurity TechUnclassifiedIPv41,439
AS9304HGC Global Communications LimitedHostingIPv4 IPv61,275

All 53 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-29 10:00 UTC by route-views2,rrc00, as seen from 76 BGP vantage points across 74.36M 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.