asn.dev

Observed topology

AS137983 TIANFENG (HONG KONG) COMMUNICATIONS LIMITED

Unclassified APNIC Network Services

Upstreams 0 carry this network
Downstreams 13 this network carries
Adjacent (IPv4) 27
Adjacent (IPv6) 5
Upstream graph Who carries AS137983, and who carries them, drawn as a map up to the transit-free core. 1 exchange Where AS137983 physically turns up to peer, and its address on each fabric.

Transit

Upstream networks

inferred

Networks observed carrying traffic for AS137983: 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.

No upstream observed. Typical for a tier-1 network that buys transit from nobody.

Transit

Downstream networks

All 13

Networks for which AS137983 was observed as the last hop before the origin, meaning it appears to provide them transit.

ASNetworkTypeFamiliesPaths seen
AS54801Zillion Network Inc.UnclassifiedIPv41,477
AS152475BGPNET PTE. LTD.UnclassifiedIPv4 IPv6642
AS136798WUZHOUHULIAN INTERNATIONAL CO., LIMITEDUnclassifiedIPv4407
AS149430TIANFENG (HONG KONG) COMMUNICATIONS LIMITEDUnclassifiedIPv4293
AS149296TIANFENG (HONG KONG) COMMUNICATIONS LIMITEDUnclassifiedIPv4 IPv6238
AS216224Tianjin Tianzhan Technology Co., Ltd.UnclassifiedIPv4175
AS136768VMTECH INCUnclassifiedIPv4116
AS151466WENWANG INFORMATION TECHNOLOGY LIMITEDUnclassifiedIPv4113
AS141167AgotoZ HK LimitedUnclassifiedIPv459
AS138542ZT Information Network Co., LimitedUnclassifiedIPv458

All 13 downstreams →

Adjacency

Adjacent networks

All 28

Every AS seen directly next to AS137983 in a routing path, in either direction.

ASNetworkTypeFamiliesPaths seen
AS54801Zillion Network Inc.UnclassifiedIPv41,535
AS3491PCCW Global (HK) Ltd.TransitIPv41,416
AS9886CTCSCI TECH LIMITEDHostingIPv4 IPv61,069
AS2914NTT America, Inc.TransitIPv4 IPv6986
AS152475BGPNET PTE. LTD.UnclassifiedIPv4 IPv6699
AS18186Nebula Global LLCHostingIPv4424
AS136798WUZHOUHULIAN INTERNATIONAL CO., LIMITEDUnclassifiedIPv4407
AS149430TIANFENG (HONG KONG) COMMUNICATIONS LIMITEDUnclassifiedIPv4293
AS149296TIANFENG (HONG KONG) COMMUNICATIONS LIMITEDUnclassifiedIPv4 IPv6238
AS216224Tianjin Tianzhan Technology Co., Ltd.UnclassifiedIPv4175

All 28 adjacent →

Provenance

Where this comes from

Derived from routing tables collected at 2026-10-26 10:00 UTC by route-views2,rrc00, as seen from 75 BGP vantage points across 73.14M 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.