IP Address Tools
25 professional tools for IP lookup, geolocation, CIDR math, ASN, blacklist, and audit reports.
IP Lookup
Resolve hostname, PTR, ASN, and network info for an IP address
Reverse IP Lookup
Perform reverse DNS (PTR) lookup for an IP address
IP Geolocation Lookup
Find country, city, coordinates, and timezone for an IP
Public IP Checker
Show your current public IP address as seen by the server
Private IP Checker
Detect if an IP is private, loopback, link-local, or public
IPv4 to IPv6 Converter
Convert IPv4 addresses to IPv4-mapped and embedded IPv6 forms
IPv6 to IPv4 Compatibility Checker
Check if an IPv6 address maps to or embeds an IPv4 address
IP Reputation Checker
Assess IP trust from DNSBL listings and network signals
IP Blacklist Checker
Check an IP against common DNS-based blacklists
ASN Lookup
Find autonomous system number and BGP prefix for an IP
ISP Lookup
Identify the ISP and organization assigned to an IP
IP Range Lookup
Look up the registered IP range and allocation for an address
CIDR to IP Range Converter
Convert a CIDR block to network, broadcast, and host range
IP Range to CIDR Converter
Convert a start–end IP range into the smallest CIDR blocks
IP Subnet Splitter
Split a CIDR subnet into smaller equal-sized subnets
IP Subnet Merger
Merge adjacent CIDR subnets into a summary route
IP Conflict Checker
Detect overlapping CIDR blocks or duplicate IP assignments
IP Binary Converter
Convert IPv4 addresses to and from binary notation
IP Decimal Converter
Convert IPv4 addresses to and from decimal integer form
IP Hex Converter
Convert IPv4 addresses to and from hexadecimal notation
Bulk IP Lookup
Look up PTR, ASN, and geolocation for multiple IPs
IP Abuse Contact Finder
Extract abuse and security contacts from IP WHOIS
Proxy/VPN Detection Tool
Detect proxy, VPN, hosting, and mobile network indicators
Tor Exit Node Checker
Check if an IP is a known Tor exit node
IP Audit Report Generator
Generate a full IP audit with WHOIS, geo, ASN, and reputation