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IP Precise Lookup
City-level location, ISP, line type and coordinates
Explore →Regional IP Library
IP ranges aggregated by province and city
Explore →IP Type Detection
Distinguish servers, broadband, CDN, proxy and campus IPs
Explore →Network Knowledge
Articles on IP basics, NAT, static IP and proxy detection
Explore →Popular Province & City IP Entries
Popular Provinces
Key Cities
Browse IPs by Usage Scenario
Cloud Server IPs
Public IPs of cloud datacenters (Alibaba, Tencent, Huawei etc.) that can host services directly.
CDN Nodes
Static acceleration nodes used to distribute images and static assets.
Home Broadband
Real public IPs assigned to households without multi-layer NAT.
CGNAT
Shared egress IPs behind carrier-grade NAT; port forwarding is not possible.
CERNET
Campus network ranges for universities and research institutes.
Proxy / VPN
IP ranges commonly used by public proxies and transit nodes; can be blocked by risk control.
Network Tools
Convert between IPv4 dotted-decimal and decimal. Type in either field.
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Popular IPs
About This IP Lookup Service
This site provides free IP geolocation lookup, ISP identification, risk-IP marking and network-range aggregation based on complete offline IP databases, together with articles on networking fundamentals. All data is for lawful network operations and technical research only.