IP Intelligence
IP Geolocation
City-level location data for any IP
ASN Lookup
Autonomous system & BGP routing data
Privacy Detection
Detect VPNs, proxies, Tor & relays
Residential Proxy
Behavior-based proxy detection
Mobile Carrier
Carrier name, MCC/MNC, connection type
Domain & Network
Hosted Domains
All domains on any IP or server
IP to Company
Identify organization behind any IP
Abuse Contact
Abuse reporting contacts for any IP
IP WHOIS
Full WHOIS records & allocation data
IP Ranges
CIDR blocks & prefix data by ASN
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IP Tools
IP Lookup
Full intelligence report on any IP
Country, city, timezone, coordinates
IP Reputation Check
Spam, abuse, and threat score
Reverse IP Lookup
Find all domains hosted on an IP
IP Subnet Browser
Explore and enumerate IP ranges
IP Range Browser
Browse CIDR blocks & prefixes
Domain & DNS
Domain Lookup
DNS, WHOIS, SSL, hosting in one query
DNS Records Lookup
A, AAAA, MX, TXT, NS, CNAME & more
WHOIS Lookup
Registrant, registrar, & expiry data
SSL Certificate Check
Issuer, validity, chain & SANs
Domain Reputation
Blocklist, phishing, & malware status
Reverse DNS Lookup
PTR records & hostname resolution
Network & ASN
Autonomous system data & details
ASN Detail Pages
Prefixes, peering & contact info
BGP Route Lookup
Announced prefixes & routing paths
Network / CIDR Info
Subnet masks, ranges, host counts
ASN Browser by Country
Filter networks by country or region
Organization Lookup
All IPs & ASNs for any organization
Discovery
Browse by Country
All IPs, ASNs & hosters per country
Browse by City
IP data and networks for any city
Browse by Organization
Networks & ranges per company
IP Prefix Explorer
Navigate allocated address space
Domains & sites per IP or server
Threat Intelligence
Abuse, botnet, & malware signals
Try any lookup free. No account required. 50K free API calls/month.
Learn
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API Docs
RESTful API reference with examples
IP risk, VPN, proxy, Tor detection
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Real-time uptime & latency
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Free tier + flexible paid plans
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API Documentation
RESTful JSON API with 15+ endpoints
SDKs & Libraries
Python, Node.js, PHP, Go, Ruby, Java
Real-time uptime & latency monitoring
HostInfo Blog
Insights on internet infrastructure, security, and data.
All Articles
Autonomous System Numbers are the building blocks of internet routing. Here's a developer-friendly primer on what they are and how to use them.
Alex Warwick
Dec 5, 2023 · 7 min
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