1const MAC = require("oui-mac");
2const fs = require("fs");

or

1import * as MAC from "oui-mac";
2import * as fs from "fs";

then

1// Download it from https://standards-oui.ieee.org/oui/oui.txt
2const ouitxt = fs.readFileSync("oui.txt", "utf8");
3const OUIDb = MAC.OUIDb(ouitxt);
4console.log("Read", OUIDb.size, "OUIs from the database");
5
6function printMac(mac) {
7    console.log(`${mac}:`);
8    let parsed = MAC.parse(mac);
9    console.log(`  - Normalised: ${MAC.toString(parsed)}`);
10    console.log(`  - OUI: ${MAC.getOui(parsed)}`);
11    console.log(`  - Multicast: ${MAC.getMulticast(parsed)}`);
12    console.log(`  - LAA: ${MAC.getLAA(parsed)}`);
13    console.log(`  - Docker: ${MAC.isDocker(parsed) ? "Likely" : "Unlikely"} (converted to IP: ${MAC.dockerIP(parsed)})`);
14    let vendor = MAC.getVendor(parsed, OUIDb);
15    if (vendor) {
16        console.log(`  - Vendor: ${vendor.name}`);
17        console.log(`            ${vendor.address}`);
18        console.log(`            ${vendor.region}`);
19        console.log(`            ${vendor.country}`);
20    }
21}
22printMac("bc:24:11:cf:9a:4b")