Observed topology

AS140330 CHINATELECOM-FUJIAN-XIAMEN-5G-NETWORK CHINATELECOM Fujian province Xiamen 5G network

Unclassified APNIC

Upstreams 2 carry this network

Downstreams 9 this network carries

Adjacent (IPv4) 3

Adjacent (IPv6) 10

Upstream graph Who carries AS140330, and who carries them, drawn as a map up to the transit-free core. 0 exchanges Where AS140330 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS140330: 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.

AS	Network	Type	Families	Paths seen
AS4134	No.31,Jin-rong Street	Residential	IPv4 IPv6	3,439
AS4809	China Telecom Next Generation Carrier Network	Unclassified	IPv4 IPv6	161

Transit

Downstream networks

inferred

Networks for which AS140330 was observed as the last hop before the origin, meaning it appears to provide them transit.

AS	Network	Type	Families	Paths seen
AS140328	CHINATELECOM Fujian province Shengji 5G network	Unclassified	IPv6	132
AS140331	CHINATELECOM Fujian province NINGDE 5G network	Unclassified	IPv6	132
AS140332	CHINATELECOM Fujian province Putian 5G network	Unclassified	IPv6	132
AS140333	CHINATELECOM Fujian province Quanzhou 5G network	Unclassified	IPv6	132
AS140334	CHINATELECOM Fujian province Zhangzhou 5G network	Unclassified	IPv6	132
AS140335	CHINATELECOM Fujian province Longyan 5G network	Unclassified	IPv6	132
AS140336	CHINATELECOM Fujian province Sanming 5G network	Unclassified	IPv6	132
AS140337	CHINATELECOM Fujian province Nanping 5G network	Unclassified	IPv6	132
AS38057	Dell (China) Co.,Ltd	Unclassified	IPv4	28

Adjacency

Adjacent networks

All 11

Every AS seen directly next to AS140330 in a routing path, in either direction.

AS	Network	Type	Families	Paths seen
AS4134	No.31,Jin-rong Street	Residential	IPv4 IPv6	4,523
AS4809	China Telecom Next Generation Carrier Network	Unclassified	IPv4 IPv6	161
AS140328	CHINATELECOM Fujian province Shengji 5G network	Unclassified	IPv6	132
AS140331	CHINATELECOM Fujian province NINGDE 5G network	Unclassified	IPv6	132
AS140332	CHINATELECOM Fujian province Putian 5G network	Unclassified	IPv6	132
AS140333	CHINATELECOM Fujian province Quanzhou 5G network	Unclassified	IPv6	132
AS140334	CHINATELECOM Fujian province Zhangzhou 5G network	Unclassified	IPv6	132
AS140335	CHINATELECOM Fujian province Longyan 5G network	Unclassified	IPv6	132
AS140336	CHINATELECOM Fujian province Sanming 5G network	Unclassified	IPv6	132
AS140337	CHINATELECOM Fujian province Nanping 5G network	Unclassified	IPv6	132

All 11 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-25 12:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.17M 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.