Retrieve and parse whois data for IPv4 and IPv6 addresses

Generic ASN.1 library for Python

Leverage ASN to look up IP addresses (IPv4 & IPv6) owned by a specific organization for reconnaissance purposes, then run port scanning on it.

Chiasmodon is an OSINT tool designed to assist in the process of gathering information about a target domain. Its primary functionality revolves around searching for domain-related data, including domain emails, domain credentials, CIDRs , ASNs , and subdomains, the tool also allows users to search Google Play application ID.

ASN and IP List in China (Daily Update)

ASN reconnaissance script

Tool to find common points between ASNs on PeeringDB

Help recon of hostnames from specific ASN or CIDR, thanks to Robtex and BGP.HE

Resolve bulk host file list to IP addresses, ASN, and validate DNS.

Check whether an IP address or hostname belongs to popular cloud providers

Measuring Internet AS dependency

A tool to discover ASN of any host and fetch IP ranges.

ASN generator - a tool to create ASN labels

Longitudinal IP to ASN mapping

Official Python library for IPFinder

Open & Free IP to ASN/Internet Provider Database

ASNPepper - Recon in ASN - Extracting CIDR's - Fast and efficient scanning

block or allow IP address based on country code or operator name

ASN.1 modules for UPTANE metadata and messages

Get ASN delegations list of specific country