AS23724 — CHINANET-IDC-BJ-AP - IDC, China Telecommunications Corporation

Network type: hosting

AS23724 announces 532 IPv4 prefixes covering 2,151,424 addresses and 44 IPv6 prefixes.

About this network

CHINANET-IDC-BJ-AP is operated by IDC, China Telecommunications Corporation.

What it's used for

• The address space carries diverse netnames including CHINA-21VIANET, shanxun, BJTEL, CloudVsp, shinenet, Forest-Eternal, SKBJNET, ZLLX, UCLOUD-NET, and SINNET, indicating a mix of leased or historical allocations within the China Telecom estate.
• With 1,884,928 IPv4 addresses announced across 606 prefixes and 16 observed neighbours, the high address-to-neighbour ratio suggests a large-scale access or hosting network rather than a transit provider.

Notable

• Registrants vary significantly from the announcer, including IRT-CNNIC-CN, IRT-CNISP-CN, IRT-SKBJNET-CN, IRT-SINNET-CN, and unknown entities, reflecting a complex inventory of allocated blocks.
• The inventory consists of 606 IPv4 prefixes and 63 IPv6 prefixes, with the largest blocks being /16s such as 42.158.0.0/16 and 114.64.0.0/16.

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

Announced prefixes

• 1.203.94.0/23
• 1.203.115.0/24
• 1.203.124.0/22
• 36.110.128.0/18
• 36.110.192.0/20
• 36.110.208.0/22
• 36.110.212.0/24
• 36.110.214.0/23
• 36.110.217.0/24
• 36.110.218.0/23
• 36.110.220.0/22
• 36.110.224.0/21
• 36.110.232.0/23
• 36.110.236.0/22
• 36.110.240.0/20
• 36.111.80.0/23
• 36.111.88.0/24
• 36.111.148.0/23
• 36.112.128.0/21
• 36.112.136.0/22
• 36.112.142.0/23
• 36.112.145.0/24
• 36.112.146.0/23
• 36.112.148.0/23
• 36.112.150.0/24
• 36.112.154.0/23
• 36.112.156.0/22
• 36.112.168.0/23
• 36.112.235.0/24
• 42.62.0.0/17
• 42.158.0.0/16
• 43.231.160.0/22
• 43.231.167.0/24
• 43.231.168.0/23
• 43.231.170.0/24
• 43.243.232.0/22
• 43.247.176.0/20
• 45.254.64.0/20
• 49.4.32.0/20
• 49.4.128.0/22
• 49.7.0.0/16
• 58.83.192.0/19
• 58.83.224.0/20
• 58.83.240.0/21
• 58.83.248.0/22
• 58.83.252.0/23
• 58.83.255.0/24
• 59.151.0.0/20
• 59.151.16.0/23
• 59.151.20.0/22
• 59.151.24.0/21
• 59.151.64.0/18
• 61.4.80.0/23
• 101.36.64.0/20
• 101.36.192.0/19
• 101.36.224.0/21
• 101.36.240.0/20
• 101.124.0.0/20
• 101.124.19.0/24
• 101.124.22.0/24
• 101.124.24.0/21
• 101.124.62.0/24
• 101.198.0.0/22
• 101.198.4.0/24
• 101.236.128.0/17
• 101.237.33.0/24
• 101.237.34.0/23
• 101.237.36.0/22
• 101.237.40.0/24
• 101.237.128.0/20
• 101.251.195.0/24
• 101.251.202.0/24
• 101.251.204.0/22
• 101.251.208.0/20
• 101.251.227.0/24
• 101.251.229.0/24
• 101.251.232.0/24
• 101.251.236.0/24
• 101.251.239.0/24
• 101.251.240.0/24
• 101.251.242.0/24
• 101.251.244.0/23
• 101.251.247.0/24
• 101.251.248.0/24
• 101.251.251.0/24
• 101.254.0.0/20
• 101.254.32.0/19
• 101.254.64.0/19
• 101.254.96.0/23
• 101.254.98.0/24
• 101.254.100.0/22
• 101.254.104.0/21
• 101.254.112.0/20
• 101.254.128.0/17
• 103.17.40.0/22
• 103.26.0.0/22
• 103.26.64.0/23
• 103.28.8.0/24
• 103.37.72.0/22
• 103.70.8.0/22

and 476 more.

Upstream networks

• AS4134 No.31,Jin-rong Street
• AS4809 China Telecom Next Generation Carrier Network

Downstream networks

• AS45090 Shenzhen Tencent Computer Systems Company Limited
• AS37963 Hangzhou Alibaba Advertising Co.,Ltd.
• AS55990 Huawei Cloud Service data center
• AS38365 Beijing Baidu Netcom Science and Technology Co., Ltd.
• AS59019 Beijing Kingsoft Cloud Internet Technology Co., Ltd
• AS9308 Abitcool(China) Inc.
• AS63646 Beijing Xiaoju Science and Technology Co., Ltd.
• AS59067 Microsoft Mobile Alliance Internet Services Co., Ltd
• AS133865 Beijing IQIYI Science & Technology Co., Ltd.
• AS9814 Beijing FibrLINK Networks Co.,Ltd.
• AS137718 Beijing Volcano Engine Technology Co., Ltd.
• AS56019 Beijing ShuJuJia Technology Co., Ltd.
• AS59078 Yunify Technologies Inc.
• AS58593 Shanghai Blue Cloud Technology Co.,Ltd

Adjacent networks

• AS4134 No.31,Jin-rong Street
• AS45090 Shenzhen Tencent Computer Systems Company Limited
• AS37963 Hangzhou Alibaba Advertising Co.,Ltd.
• AS55990 Huawei Cloud Service data center
• AS38365 Beijing Baidu Netcom Science and Technology Co., Ltd.
• AS59019 Beijing Kingsoft Cloud Internet Technology Co., Ltd
• AS9308 Abitcool(China) Inc.
• AS63646 Beijing Xiaoju Science and Technology Co., Ltd.
• AS59067 Microsoft Mobile Alliance Internet Services Co., Ltd
• AS133865 Beijing IQIYI Science & Technology Co., Ltd.
• AS9814 Beijing FibrLINK Networks Co.,Ltd.
• AS137718 Beijing Volcano Engine Technology Co., Ltd.
• AS56019 Beijing ShuJuJia Technology Co., Ltd.
• AS4809 China Telecom Next Generation Carrier Network
• AS59078 Yunify Technologies Inc.
• AS58593 Shanghai Blue Cloud Technology Co.,Ltd

Routing security

• RPKI: 850 valid, 4 invalid and 111 not-found announcements; 913 ROAs.
• ASPA: none published.
• IRR: 98% of announcements registered; 1,366 route objects.
• Listed in as-sets: AS-CTBJIDC, AS-CTGNET, AS-CTGNET-CUT, AS-CTTJ, AS204464:AS-BLACKLIST.