Telecommunication companies play a vital role in facilitating the global transmission of electronic information, encompassing videos, images, text messages, and phone calls. They operate extensive networks that encompass the internet, various cable TV networks, mobile phone networks, and telephone landline networks. With numerous telecommunication companies worldwide offering these services, it becomes intriguing to identify the most profitable ones globally. VoiceNation's team has developed an informative infographic that examines the per-second earnings of the top 25 telecom companies. According to VoiceNation's research, AT&T emerges as the largest telecom company globally, recording revenue of $168.86 billion. The research conducted by VoiceNation reflects data from 2021, presenting both the total revenue of these companies during that period and their per-second earnings. Notably, three out of the five telecommunication companies generating the highest revenue per second are located in the United States. AT&T and Verizon, both based in the United States, lead the pack by earning $5,354.52 and $4,236.75 per second, respectively.