asn.dev

Observed topology

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

Unclassified ARIN NSP

Upstreams 19 carry this network
Downstreams 34 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 19

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 IPv68,535
AS1299Arelion Sweden ABTransitIPv4 IPv63,155
AS3356Level 3 Parent, LLCTransitIPv4 IPv62,300
AS2914NTT America, Inc.TransitIPv4 IPv61,393
AS9304HGC Global Communications LimitedHostingIPv4 IPv61,202
AS6939Hurricane Electric LLCTransitIPv4 IPv61,009
AS3320Deutsche Telekom AGMobileIPv4 IPv6635
AS4637Telstra GlobalUnclassifiedIPv4 IPv6611
AS812Rogers Communications Canada Inc.MobileIPv4 IPv6571
AS3491PCCW Global (HK) Ltd.TransitIPv4271

All 19 upstreams →

Transit

Downstream networks

All 34

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 IPv67,354
AS58777ChinaTelecom Cybersecurity TechUnclassifiedIPv41,399
AS4847China Networks Inter-ExchangeUnclassifiedIPv4 IPv6885
AS136167CHINA TELECOM (MACAU) COMPANY LIMITEDUnclassifiedIPv4 IPv6626
AS54600PEG TECH INCHostingIPv4324
AS40065CNSERVERS LLCHostingIPv4268
AS58518China TelecomUnclassifiedIPv4238
AS328543Sun Network Company LimitedUnclassifiedIPv4 IPv6233
AS136198CHINANET Guangdong province Yuexi MAN networkUnclassifiedIPv4 IPv6217
AS58517China TelecomUnclassifiedIPv4180

All 34 downstreams →

Adjacency

Adjacent networks

All 53

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

ASNetworkTypeFamiliesPaths seen
AS23764CTGNetUnclassifiedIPv4 IPv618,363
AS4812China Telecom (Group)ResidentialIPv4 IPv67,354
AS1299Arelion Sweden ABTransitIPv4 IPv64,848
AS3356Level 3 Parent, LLCTransitIPv4 IPv62,964
AS2914NTT America, Inc.TransitIPv4 IPv61,751
AS54600PEG TECH INCHostingIPv41,624
AS4134No.31,Jin-rong StreetResidentialIPv4 IPv61,551
AS58777ChinaTelecom Cybersecurity TechUnclassifiedIPv41,399
AS9304HGC Global Communications LimitedHostingIPv4 IPv61,374
AS6939Hurricane Electric LLCTransitIPv4 IPv61,373

All 53 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-11-13 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 74.40M 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.