What is my Salesforce IP Address using Apex

NetworkUtils.cs

public with sharing class NetworkUtils {
    
    public static String WhatIsMyIPAddress() {

        HttpRequest request = new HttpRequest();

        // Don't forget to add http://icanhazip.com as a remote site.

        request.setEndpoint('http://icanhazip.com/');
        request.setMethod('GET');

        HttpResponse response = new Http().send(request);
        
        return response.getBody();
    }
}