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Autonomous System

AS139317 · Ningbo Dahuamao Information Technology Co Ltd

Overview

AS139317 is announced on the Internet: RIPE RIS route collectors currently see no IPv4 prefix and 67 IPv6 prefixes originated by this network. In the paths the collectors record, it has 5 upstream neighbours (transit providers or peers) and 69 downstream neighbours (customers or networks it carries). Its most visible upstreams are XIN BING XIAN (AS199310), Hurricane Electric LLC (AS6939), and Shanghai Yingyun Network Technology Co., Ltd. (AS204211). AS139317 was assigned by APNIC, and its registration country is China.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 3:57 AM UTC. This page is refreshed at most every 12 hours.

Go further

No IPv4 address of this network is known right now, so there is nothing to trace to.

Announced prefixes

IPv4 prefixes (none)

None currently seen.

IPv6 prefixes (67 prefixes)

Prefix
2406:840:1::/48
2406:840:2::/48
2406:840:10::/45
2406:840:20::/48
2406:840:44::/48
2406:840:46::/48
2406:840:78::/48
2406:840:79::/48
2406:840:80::/47
2406:840:90::/48
2406:840:100::/48
2406:840:101::/48
2406:840:103::/48
2406:840:110::/48
2406:840:180::/48
2406:840:200::/48
2406:840:2e0::/48
2406:840:380::/48
2406:840:381::/48
2406:840:3c2::/48
2406:840:3e0::/48
2406:840:410::/48
2406:840:411::/48
2406:840:420::/48
2406:840:480::/48
2406:840:540::/48
2406:840:680::/48
2406:840:6c1::/48
2406:840:710::/48
2406:840:800::/48
2406:840:801::/48
2406:840:802::/48
2406:840:803::/48
2406:840:806::/48
2406:840:841::/48
2406:840:842::/48
2406:840:860::/48
2406:840:880::/48
2406:840:881::/48
2406:840:882::/48
2406:840:883::/48
2406:840:a10::/48
2406:840:a11::/48
2406:840:a31::/48
2406:840:a32::/48
2406:840:c02::/48
2406:840:c60::/48
2406:840:cb8::/48
2406:840:cc2::/48
2406:840:1001::/48
2406:840:1800::/48
2406:840:2380::/48
2406:840:2800::/48
2406:840:2881::/48
2406:840:3800::/48
2406:840:4100::/47
2406:840:43e0::/47
2406:840:4800::/47
2406:840:4880::/47
2406:840:5100::/47
2406:840:5800::/47
2406:840:5860::/47
2406:840:5880::/47
2406:840:5c00::/47
2602:f92a:a474::/48
2a0a:d680:a31::/48
2a0a:d680:8100::/47

Neighbours

Upstreams (transit or peers) (5)

ASNetworkVisibility
AS199310XIN BING XIAN6,689
AS6939Hurricane Electric LLC6,613
AS204211Shanghai Yingyun Network Technology Co., Ltd.5,193
AS20473The Constant Company, LLC365
AS44324MoeDove LLC308

Downstreams (customers) (69)

ASNetworkVisibility
AS57330GiraffeTech Sichuan Giraffe Technology Co., Ltd.340
AS142553Airs Project Private Network Main288
AS153376Jilin Province Brick Business Service Limited275
AS132623Tsukeru Networks273
AS133555DOORPOST Limited273
AS134488CTJ's Global Network273
AS138535Wu Qi273
AS141429Agatha Network273
AS142438Kasumi Networks Inc273
AS151194Zhu Yucheng273
AS152631-273
AS153172-273
AS208753-272
AS134413-271
AS142586-271
AS140682-268
AS137908-265
AS150141-265
AS150173-265
AS150184-265
AS151187-265
AS151490-265
AS152911-265
AS137264-264
AS140731-264
AS142433-264
AS132479-263
AS136725-263
AS137436-263
AS137835-263

The 30 most visible of 69.

2 more neighbours appear on both sides of this network depending on the path, so they are counted in neither list.

Visibility is RIPEstat's count of how often the route collectors observed the link. It compares neighbours with each other; it is not a traffic volume.

How to read this page

An Autonomous System (AS) is a network run under one routing policy: an internet provider, a cloud, a content network, a university. Each one has a number, its ASN, assigned by a regional registry (ARIN, RIPE NCC, APNIC, LACNIC, AFRINIC), and uses BGP, the protocol networks use to tell each other where addresses are, to announce the blocks of addresses it delivers to.

A prefix such as 203.0.113.0/24 is a block of addresses: the number after the slash says how many bits are fixed, so a /24 holds 256 IPv4 addresses and a /16 holds 65,536. Networks often announce a large block and smaller pieces of it at the same time, which is why the address total counts each address once.

Neighbours come from the paths themselves. A network that appears just before this one in a path, on the collector's side, is an upstream: a transit provider or a peer. One that appears just after it is a downstream, usually a customer. Peering at an internet exchange also shows up as an upstream, so the upstream list is not a list of paid transit.

The data comes from RIPEstat, run by the RIPE NCC, which gathers the routing tables of hundreds of networks through its RIS route collectors. This page reads it when it is visited and keeps it for 12 hours at most; the BGP viewer reads it live.

Frequently asked questions

How do I find the ASN of an IP address?
Type the address in the BGP viewer: it shows the prefix that covers it, the AS that originates that prefix and the paths seen towards it. A traceroute also names the network of each hop, so you can see every AS a connection crosses.
Why does one company have several ASNs?
Large operators split their network by region, by activity or by history: a cloud may use one number for its backbone and another for a region, and every acquisition brings its own numbers. Each number has its own page, with its own prefixes and neighbours.
Why do prefix counts differ from one site to another?
Each source sees the routing table from different collectors, at a different time, and counts differently: some include prefixes withdrawn in recent weeks, some merge a block and its pieces. This page counts the prefixes RIPE RIS collectors see originated by the network at the end of the latest two-week window, and counts each IPv4 address once.
Is this the list of IP ranges of a cloud provider?
It is what its networks announce, which is what the Internet routes to them. Many providers also publish an official list of ranges per service and region; that list is the reference for firewall rules, because a range can be announced before it is used, or announced by another of their AS numbers.