AS17775 — STN-CN shanghai science and technology network communication limited company
AS17775 announces 46 IPv4 prefixes covering 37,888 addresses and 1 IPv6 prefixes.
About this network
The AS handle STN-CN is held by Shanghai Science and Technology Network Communication Limited Company.
What it's used for
- The address space is registered under the netname STN-CN with registrant IRT-STN-CN-CN, indicating a unified corporate estate.
- The AS announces 37,888 IPv4 addresses across 56 prefixes and 1 IPv6 prefix, while maintaining only 3 observed neighbours. This high address-to-neighbour ratio suggests an internal corporate network or access provider rather than a transit hub.
Notable
- All sampled prefixes share the same registrant IRT-STN-CN-CN and netname STN-CN, confirming consistent ownership.
- The inventory consists of finely subdivided blocks, including multiple /21, /22, and /23 prefixes, which is characteristic of site-by-site segmentation within a large organization.
- The network has been observed in routing tables since 2001, indicating long-term operational stability.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 122.144.128.0/20
- 122.144.144.0/23
- 122.144.147.0/24
- 122.144.152.0/23
- 122.144.156.0/23
- 122.144.161.0/24
- 122.144.164.0/22
- 122.144.168.0/22
- 122.144.172.0/23
- 122.144.178.0/23
- 122.144.180.0/22
- 122.144.192.0/21
- 122.144.200.0/22
- 122.144.206.0/23
- 122.144.208.0/23
- 122.144.211.0/24
- 122.144.212.0/22
- 122.144.216.0/21
- 122.144.232.0/22
- 122.144.236.0/23
- 122.144.240.0/24
- 122.144.248.0/23
- 125.215.36.0/23
- 125.215.40.0/24
- 125.215.44.0/23
- 125.215.48.0/24
- 125.215.52.0/23
- 125.215.54.0/24
- 203.95.0.0/23
- 203.95.2.0/24
- 203.95.4.0/22
- 210.14.64.0/20
- 210.14.80.0/22
- 210.14.84.0/24
- 210.14.90.0/23
- 210.14.92.0/22
- 210.73.204.0/24
- 211.144.96.0/23
- 211.144.100.0/22
- 211.144.104.0/22
- 211.144.108.0/23
- 211.144.110.0/24
- 211.144.112.0/24
- 211.144.114.0/23
- 211.144.118.0/23
- 211.144.120.0/21
- 2403:2040::/48
Upstream networks
- AS4812 China Telecom (Group)
- AS24400 Shanghai Mobile Communications Co.,Ltd.
- AS17621 China Unicom Shanghai network
Adjacent networks
BGP / ASN / CIDR
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IPv4
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IPv6
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Search Results
IPv4 Prefixes
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IPv6 Prefixes
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Total Prefixes
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Unique /24s
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⚠ SUSPICIOUS PREFIX ANNOUNCEMENTS DETECTED