IPIPHistory - IP Address and BGP Route History Search

Free IP Address Lookup and ASN Search Tool

IPIPHistory is a comprehensive network intelligence tool that provides detailed information about IP addresses, Autonomous System Numbers (ASN), and BGP routing history. Our database aggregates data from RouteViews and RIPE RIS collectors to give you accurate, historical BGP routing information.

Key Features

IP Address Lookup: Search for any IPv4 or IPv6 address to find its network assignment, ASN, and ISP information
ASN Search: Look up Autonomous System Numbers to discover network ownership and routing information
BGP Route History: Access historical BGP routing data from multiple RouteViews and RIPE RIS collection points
BGP Hijack Detection: Identify potential BGP route hijacks and anomalies in routing announcements
Network Prefix Search: Search by CIDR notation to find routing information for specific network blocks
ISP Relationship Analysis: Explore upstream and downstream relationships between autonomous systems

Why Use IPIPHistory?

Network administrators, security researchers, and IT professionals rely on IPIPHistory for troubleshooting routing issues, investigating security incidents, and analyzing network infrastructure. Our tool provides free access to valuable BGP routing intelligence that helps you understand how traffic flows across the Internet.

Data Sources

Our data comes from trusted, publicly available sources:

RouteViews Project - Multi-hop BGP peering project maintained by the University of Oregon
RIPE RIS - Routing Information Service operated by RIPE NCC
Internet Routing Registry (IRR) - Publicly available routing policy databases