AS17621 CNCGROUP-SH China Unicom Shanghai network
Announced Prefixes (BGP)
817total
389 IPv4428 IPv6
IPv4 Addresses
Allocated (RIR)96,512
Announced (BGP)1.3M
IPv6 Addresses
Allocated (RIR)0
Announced (BGP)1.9×10³⁰
Prefix Limit (IPv4)
1,000
Prefix Limit (IPv6)
2,000
Allocated
-
Announced Prefixes
(BGP)817|
Prefix | RPKI | IRR | Last Seen |
|---|---|---|---|
| Valid | APNICOther IRR | - | |
| Valid | Other IRR | - | |
| Valid | Other IRR | - | |
| Valid | - | - | |
| Valid | - | - | |
| Valid | - | - | |
| Valid | - | - | |
| Valid | - | - | |
| Valid | - | - | |
43.242.96.0/23MOAS | Invalid | - | - |
1-10 of 817
1 / 82
Allocated Prefixes
(RIR)32Prefix | Country | RIR | Status |
|---|---|---|---|
| 27.115.0.0/17 | 🇨🇳 CN | APNIC | allocated |
| 43.243.148.0/22 | 🇨🇳 CN | APNIC | allocated |
| 43.250.144.0/22 | 🇨🇳 CN | APNIC | allocated |
| 43.254.224.0/22 | 🇨🇳 CN | APNIC | allocated |
| 103.38.232.0/22 | 🇨🇳 CN | APNIC | allocated |
| 103.61.190.0/24 | 🇨🇳 CN | APNIC | assigned |
| 103.140.14.0/23 | 🇨🇳 CN | APNIC | allocated |
| 103.156.68.0/23 | 🇨🇳 CN | APNIC | allocated |
| 103.202.92.0/22 | 🇨🇳 CN | APNIC | allocated |
| 103.202.96.0/22 | 🇨🇳 CN | APNIC | allocated |
1-10 of 32
1 / 4
All 817 announced prefixes of AS17621 →
BGP Neighbours
(seen in AS paths)Upstreams (2)
Networks AS17621 hands its own prefixes to: transit providers, or peers at an exchange.
Downstreams (31)
Networks whose own prefixes AS17621 passes on: usually its customers.
- AS37963ALIBABA CN NET Hangzhou Alibaba Advertising59
- AS23853CNNIC DSNET AP Shanghai Data Solution20
- AS17775STN CN Shanghai Science And Technology Network Communication Limited Company10
- AS59083KHTECH Shanghai Kuanhui Tech10
- AS9809NOVANETWORK SHENZHEN NOVA TECHNOLOGIES DEVELOPMENT8
- AS45079GDSNET GDS CHANGAN SERVICES6
- AS59019BJKSCNET Beijing Kingsoft Cloud Internet Technology4
- AS109CISCO SYSTEMS3
- AS10100UBSGROUPAG AP UBS Group3
- AS24141DMTNET Shanghai DMT Information Network Cor3
- AS10212CHINAENTERCOM China Enterprise ICT Solutions Limited2
- AS45110CBCNET Beijing Tian Wei Xin Tong Technology . Limited2
- AS56006SPDB CN Shanghai Pudong Development Bank2
- AS58850BBGINETCN Bloomberg Financial Information Beijing2
- AS59078YUNIFY NET Yunify Technologies2
- AS137715GTJANET GTJA Securities2
- AS137759MTSCHINANET MTS SYSTEM China2
- AS137782SHDCCENTRE STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER COMPANY2
- AS139184CCDC CN China Central Depository & Clearing2
- AS18244STIDC Stateline Internet Data Center ., . Shanghai1
- AS37965CNNIC PBSL AP Pacnet Business Solutions1
- AS38375GSGH Security1
- AS38381TRAVELSKY West Wing No.157,Dongsi West Street Dongcheng, Beijing, China1
- AS45073CNNIC ASN Block1
- AS55992QIHOO Beijing Qihu Technology Company Limited1
- AS63538ACNET CN Accenture China1
- AS63570China Internet Network Information Center1
- AS135432VISA AP Visa Information Technology Beijing1
- AS137746China Internet Network Information Center1
- AS139148CHINAUNIONPAY China UnionPay1
- AS151247HSDC CN HSBC Software Development Guangdong Limited Shanghai Branch1
ASPA
No ASPA
External Links
Learn more
- What is an ASN?Autonomous systems, ASN ranges and how they are assigned
- RPKI and route origin validationWhat the RPKI badges on the prefix list mean
- ASPA explainedWhy AS17621 should publish an ASPA object
- IPv4 transfer marketTransfers published by all five RIRs
- ASN data in AI agents and SIEMMCP server and API integrations
API
Open https://api.ipctl.io/v1/asn/17621Returns ASN details, announced prefixes, and BGP routing data.
curl -s "https://api.ipctl.io/v1/asn/17621" | jq