@roniemartinez/iptocc

WASM bindings for the iptocc Rust crate. Offline IPv4 and IPv6 to ISO 3166-1 alpha-2 country code lookup.

Note: Country codes reflect the country assigned by a Regional Internet Registry (RIR) to each IP block, not where the block is being used. RIR data agrees with MaxMind for ~95% of IPv4 addresses and has minimal discrepancies for IPv6 (Zander, 2012).

Features

• Offline lookup, no API keys, no network calls
• IPv4 and IPv6 in one call
• Single string OR batch (array of strings)
• Multi-target output: Node, bundlers, browser, Deno, no-modules
• iptocc CLI installed with npm install -g @roniemartinez/iptocc (or use npx)
• Data refreshed nightly from the five Regional Internet Registries

Install

npm install @roniemartinez/iptocc

Usage

const { country_code } = require("@roniemartinez/iptocc");

country_code("8.8.8.8");                  // "US"
country_code(["8.8.8.8", "1.0.16.1"]);    // ["US", "JP"]

Per-target entry points: @roniemartinez/iptocc/{nodejs,bundler,web,deno,no-modules}.

Run the CLI without installing via npx:

$ npx @roniemartinez/iptocc 8.8.8.8 1.0.16.1
8.8.8.8 US
1.0.16.1 JP

Or install the package and the iptocc bin is on your PATH.

See also

• iptocc — the Rust crate this binding is built on
• iptocc on PyPI — Python bindings
• GitHub repo