xbar/BitBar plugin to show currently connected ISP logo. Just added T-Mobile and Verizon, for starters. But you can see how you could easily add others.

isp-icon.js

#!/usr/bin/env /usr/local/bin/node

// <xbar.title>Current ISP name</xbar.title>
// <xbar.version>v2.1.7-beta</xbar.version>
// <xbar.author>Dan Kordik</xbar.author>
// <xbar.author.github>dkordik</xbar.author.github>
// <xbar.desc>Displays current ISP name</xbar.desc>
// <xbar.dependencies></xbar.dependencies>

const http = require("http");

const url = "http://ip-api.com/json";

// find a good logo image online
// resize to 144dpi, 40x40 pixels - I used the built-in Preview app on macOS
// convert to base64 - I used https://codebeautify.org/image-to-base64-converter
const ISP_LOGOS = {
  TMOBILE:
    "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",
  VERIZON:
    "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",
};

const renderIsp = (ispString) => {
  if (ispString.includes("T-Mobile")) return `| image=${ISP_LOGOS.TMOBILE}`;
  if (ispString.includes("Verizon")) return `| image=${ISP_LOGOS.VERIZON}`;
  return ispString;
};

http
  .get(url, (res) => {
    let data = "";
    res.on("data", (chunk) => {
      data += chunk;
    });
    res.on("end", () => {
      try {
        const cc = JSON.parse(data);
        console.log(renderIsp(cc.isp));
        console.log("---");
        console.log(cc.isp);
        // console.log(data.toString());
      } catch (err) {
        console.log("🚩");
        console.log("---");
        console.log(err.toString());
      }
    });
  })
  .on("error", (err) => {
    console.log("🚩");
    console.log("---");
    console.log(err.toString());
  });