Mobile messaging through VeriSign’s digital infrastructure brought carriers topped $1 billion in the first quarter. The provider trafficked an excess of 17 billion messages, up from eight billion in the first quarter of 2006. The messaging peak occurs in the early evening hours, no doubt when plans are being made, or texting teens are (supposedly) doing their homework. At that time, as many as 20,000 messages pass through SMS messaging infrastructure per second. That’s a lot of thumb action. VeriSign handles 200 million messages on an average day (75 million average in January 2006).