subnet.im

AS139317Ningbo Dahuamao Information Technology Co Ltd

ChinaRegistryAPNIC

As of 26th September 2026, AS139317 (Ningbo Dahuamao Information Technology…), a network registered in China with APNIC, originates 67 IPv6 prefixes. It is seen behind 5 upstream networks, most often AS199310 (XIN BING XIAN) and AS204211 (Shanghai Yingyun Network Technology…), and in front of 70 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

0

IPv6 prefixes

67

IPv4 addresses

0

IPv6 /64s

5.6M

Upstream graph

The networks AS139317 is seen behind, one and two hops out, drawn from real AS paths.

AS139317Toward the internet core
Upstream graph for AS139317: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS139317Ningbo Dahuamao I…This networkAS6939Hurricane Electri…AS20473The Constant Comp…AS44324MoeDove LLCAS199310XIN BING XIANAS204211Shanghai Yingyun …AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS140227Hong Kong Communi…AS34927iFog GmbHAS215828Tizian Maxime Wei…AS174Cogent Communicat…AS206069Cornseed Limited

Networks observed one and two hops upstream of AS139317 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

344

adjacent networks

Upstreams
51%
Peers
26978%
Downstreams
7020%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS139317
NetworkCountryRelationshipPathsVantage pts
AS199310XIN BING XIANCNPeer3,00159
AS204211Shanghai Yingyun Network Technology Co., Ltd.CNPeer1,59259
AS6939Hurricane Electric LLCUSPeer1,59246
AS44324MoeDove LLCUSPeer1,52244
AS20473The Constant Company, LLCUSPeer98964

Prefixes

All 67

The largest blocks AS139317 originates, widest first.

Largest prefixes originated by AS139317
PrefixAddressesVisibility
2406:840:10::/45524k × /6463/64
2406:840:80::/47131k × /6464/64
2406:840:4100::/47131k × /6464/64
2406:840:43e0::/47131k × /6464/64
2406:840:4800::/47131k × /6464/64
2406:840:4880::/47131k × /6464/64
2406:840:5100::/47131k × /6464/64
2406:840:5800::/47131k × /6464/64
2406:840:5860::/47131k × /6464/64
2406:840:5880::/47131k × /6464/64

Routing health

How AS139317's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid100.0%67
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%67
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv6 — 67 prefixes

  • /45524k × /641.5%1
  • /47131k × /6416.4%11
  • /4865.5k × /6482.1%55

Recent changes

Announcements that started or stopped since 27th Aug 2026.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.