asn.dev

Observed topology

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

Unclassified ARIN NSP

Upstreams 20 carry this network
Downstreams 40 this network carries
Adjacent (IPv4) 48
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 IPv68,373
AS1299Arelion Sweden ABTransitIPv4 IPv62,885
AS3356Level 3 Parent, LLCTransitIPv4 IPv62,121
AS2914NTT America, Inc.TransitIPv4 IPv61,326
AS9304HGC Global Communications LimitedHostingIPv4 IPv61,166
AS6939Hurricane Electric LLCTransitIPv4 IPv6988
AS3320Deutsche Telekom AGMobileIPv4 IPv6631
AS4637Telstra GlobalUnclassifiedIPv4 IPv6610
AS812Rogers Communications Canada Inc.MobileIPv4 IPv6544
AS20485Joint Stock Company TransTeleComUnclassifiedIPv4 IPv6273

All 20 upstreams →

Transit

Downstream networks

All 40

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 IPv67,110
AS58777ChinaTelecom Cybersecurity TechUnclassifiedIPv41,393
AS4847China Networks Inter-ExchangeUnclassifiedIPv4 IPv6866
AS4134No.31,Jin-rong StreetResidentialIPv4 IPv6669
AS3320Deutsche Telekom AGMobileIPv4666
AS136167CHINA TELECOM (MACAU) COMPANY LIMITEDUnclassifiedIPv4 IPv6631
AS54600PEG TECH INCHostingIPv4353
AS40065CNSERVERS LLCHostingIPv4261
AS3356Level 3 Parent, LLCTransitIPv4240
AS58518China TelecomUnclassifiedIPv4230

All 40 downstreams →

Adjacency

Adjacent networks

All 55

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

ASNetworkTypeFamiliesPaths seen
AS35710weber.digital GmbHHostingIPv478,466
AS1299Arelion Sweden ABTransitIPv4 IPv630,812
AS4134No.31,Jin-rong StreetResidentialIPv4 IPv624,116
AS3356Level 3 Parent, LLCTransitIPv4 IPv620,173
AS23764CTGNetUnclassifiedIPv4 IPv617,699
AS3320Deutsche Telekom AGMobileIPv4 IPv610,845
AS4812China Telecom (Group)ResidentialIPv4 IPv67,110
AS2914NTT America, Inc.TransitIPv4 IPv61,736
AS58777ChinaTelecom Cybersecurity TechUnclassifiedIPv41,393
AS9304HGC Global Communications LimitedHostingIPv4 IPv61,344

All 55 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-10 10:00 UTC by route-views2,rrc00, as seen from 74 BGP vantage points across 71.97M 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.