asn ☆
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Description:
Organization lookup and server tool (ASN / IPv4 / IPv6 / Prefix / AS Path)
Type: Formula  |  Latest Version: 0.80.0@0  |  Tracked Since: Dec 17, 2025
Links: Homepage  |  formulae.brew.sh
Category: Networking
Tags: networking cli bpg diagnostics security
Install: brew install asn
About:
VersTracker is a Homebrew package directory that provides enriched metadata for the 'asn' command-line tool. This utility performs real-time ASN, IP, and BGP lookups using public APIs, enabling network engineers to quickly identify IP ownership, routing paths, and network prefixes.
Key Features:
  • Real-time ASN and IP ownership lookup via multiple sources
  • BGP path analysis and prefix visualization
  • Integration with tools like nmap and mtr for enhanced network diagnostics
  • Colorized output and easy-to-read formatting
Use Cases:
  • Investigating suspicious IP addresses during security incident response
  • Troubleshooting network routing issues and BGP path analysis
  • Gathering intelligence on IP infrastructure and ASN ownership
Alternatives:
  • bgpq4 – Focuses on generating prefix-lists from IRR data, whereas asn provides broader real-time lookup and visualization
  • whois – Provides raw registry data, while asn offers parsed, enriched output with BGP context
License: MIT
Dependencies: aha, bash, coreutils, grepcidr, ipcalc, jq, mtr, nmap, bind
Bottles available for: all
Version History
Detected Version Rev Change Commit
Aug 20, 2024 3:23pm 0 VERSION_BUMP b05628e4
Jul 8, 2024 12:25pm 0 VERSION_BUMP 67c11f7d
Feb 14, 2024 3:09am 0 VERSION_BUMP 945668a0
Feb 14, 2024 2:29am 0 VERSION_BUMP d7b812a7
Dec 3, 2023 3:02pm 0 VERSION_BUMP e08de815
Nov 23, 2023 3:16am 0 VERSION_BUMP 582ae86e
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