AS9929 — CUII CHINA UNICOM Industrial Internet Backbone

AS9929 announces 165 IPv4 prefixes covering 651,264 addresses and 91 IPv6 prefixes.

About this network

AS9929 (CUII) is held by China Unicom, and carries the network the company brands as its Industrial Internet Backbone. In older registry and BGP records the same ASN appears as China Netcom Backbone, a legacy of the China Netcom / China Unicom merger: this is one of the ASNs Unicom inherited from the northern Netcom half of the business.

What it's used for

RIS sees 225 IPv4 prefixes covering 733,184 addresses, plus a substantial 144 IPv6 prefixes out of Unicom's 2408::/20 block. The IPv4 space is the giveaway as to its lineage — large aggregates like 210.83.0.0/16, 210.53.0.0/16, 218.105.0.0/16 and 210.51.0.0/16, sitting in the same 210.x / 218.x ranges as the rest of the old Netcom estate. That is a lot of address space by any measure, but it is announced across only 25 observed neighbours. That combination — heavy address holdings, very few BGP adjacencies — says this is not a peering-hungry transit business selling to the open market. It is an internal Unicom backbone whose reachability is inherited from the parent group's much larger transit ASes rather than earned through its own interconnection.

Notable

• Distinct from China Unicom's main international backbone AS4837 and from Unicom's other regional ASNs. Describe the network in front of you: AS9929 is the smaller, separately routed Industrial Internet estate, not the mass-market Unicom eyeball network.
• Strong IPv6 build-out relative to its IPv4 footprint — 144 v6 prefixes is unusual for a network of this size and reflects China's state-driven IPv6 deployment push.
• It is a member of the AS-CNCGROUP peering set, the AS-SET that still carries the China Netcom name.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 1.28.41.0/24
• 1.28.42.0/24
• 36.33.152.0/24
• 42.84.176.0/21
• 43.243.88.0/22
• 43.250.96.0/24
• 58.248.51.0/24
• 58.254.216.0/22
• 58.254.254.0/24
• 61.240.48.0/21
• 61.241.78.0/24
• 61.242.136.0/23
• 61.242.144.0/22
• 61.243.220.0/24
• 103.3.156.0/22
• 103.72.113.0/24
• 112.92.224.0/22
• 112.224.212.0/23
• 113.5.1.0/24
• 113.59.47.0/24
• 113.59.79.0/24
• 113.194.232.0/24
• 113.200.230.0/23
• 113.207.128.0/17
• 114.254.4.0/23
• 115.46.32.0/24
• 116.142.222.0/24
• 116.147.14.0/23
• 116.162.63.0/24
• 116.162.75.0/24
• 116.169.20.0/23
• 116.170.64.0/24
• 116.170.81.0/24
• 116.178.96.0/23
• 120.86.8.0/23
• 121.29.26.0/24
• 122.97.0.0/18
• 122.97.129.0/24
• 123.126.251.0/24
• 123.235.57.0/24
• 124.130.192.0/19
• 124.160.206.0/23
• 125.46.112.0/20
• 125.47.22.0/24
• 125.211.224.0/19
• 125.214.104.0/21
• 125.214.112.0/20
• 144.36.147.0/24
• 153.0.10.0/23
• 171.34.146.0/24
• 192.163.11.0/24
• 202.127.12.0/22
• 203.93.32.0/19
• 203.93.64.0/19
• 203.93.96.0/20
• 203.93.128.0/20
• 203.93.157.0/24
• 203.93.208.0/20
• 203.93.224.0/20
• 203.93.246.0/24
• 210.13.64.0/18
• 210.13.192.0/19
• 210.13.224.0/24
• 210.13.227.0/24
• 210.13.230.0/23
• 210.13.232.0/24
• 210.13.236.0/23
• 210.13.238.0/24
• 210.14.192.0/18
• 210.15.0.0/17
• 210.22.116.0/23
• 210.22.192.0/22
• 210.22.196.0/23
• 210.22.198.0/24
• 210.22.200.0/21
• 210.22.208.0/21
• 210.22.216.0/22
• 210.22.224.0/20
• 210.22.253.0/24
• 210.51.0.0/23
• 210.51.3.0/24
• 210.51.4.0/22
• 210.51.16.0/23
• 210.51.19.0/24
• 210.51.21.0/24
• 210.51.22.0/24
• 210.51.24.0/24
• 210.51.28.0/22
• 210.51.33.0/24
• 210.51.39.0/24
• 210.51.43.0/24
• 210.51.45.0/24
• 210.51.48.0/24
• 210.51.58.0/24
• 210.51.64.0/18
• 210.51.128.0/19
• 210.51.162.0/24
• 210.51.164.0/22
• 210.51.168.0/22
• 210.51.172.0/23

and 156 more.

Upstream networks

• AS4837 CHINA UNICOM China169 Backbone
• AS10099 China Unicom Global
• AS174 Cogent Communications, LLC
• AS701 Verizon Business
• AS1299 Arelion Sweden AB
• AS3491 PCCW Global (HK) Ltd.
• AS4134 No.31,Jin-rong Street
• AS3320 Deutsche Telekom AG
• AS7473 Singapore Telecommunications Ltd

Downstream networks

• AS17622 China Unicom Guangzhou network
• AS4808 China Unicom Beijing Province Network
• AS17816 China Unicom IP network China169 Guangdong province
• AS17623 China Unicom Shenzen network
• AS151302 Hebei Sea Whale Technology Co. Ltd.
• AS17621 China Unicom Shanghai network
• AS140726 UNICOM AnHui province network
• AS18242 Chengdu Information Harbor Co., Ltd
• AS38057 Dell (China) Co.,Ltd
• AS17962 ShenZhen Topway Video Communication Co. Ltd
• AS4837 CHINA UNICOM China169 Backbone
• AS4134 No.31,Jin-rong Street

Adjacent networks

• AS4837 CHINA UNICOM China169 Backbone
• AS10099 China Unicom Global
• AS17622 China Unicom Guangzhou network
• AS174 Cogent Communications, LLC
• AS4808 China Unicom Beijing Province Network
• AS17816 China Unicom IP network China169 Guangdong province
• AS4134 No.31,Jin-rong Street
• AS701 Verizon Business
• AS1299 Arelion Sweden AB
• AS140591 HK TESUCH GLOBAL CO., LIMITED
• AS137794 Dahe tianchi (Beijing) network co. LTD
• AS17621 China Unicom Shanghai network
• AS151302 Hebei Sea Whale Technology Co. Ltd.
• AS17623 China Unicom Shenzen network
• AS3491 PCCW Global (HK) Ltd.
• AS140726 UNICOM AnHui province network
• AS18242 Chengdu Information Harbor Co., Ltd
• AS38057 Dell (China) Co.,Ltd
• AS3320 Deutsche Telekom AG
• AS17962 ShenZhen Topway Video Communication Co. Ltd
• AS7473 Singapore Telecommunications Ltd
• AS4637 Telstra Global
• AS2914 NTT America, Inc.
• AS4766 Korea Telecom