Did not answer this call and they left no message. However, I've received numerous calls from Laredo in the past, as have many of the posters on this site. The interesting thing to me is that in the past, the number has shown up as actually coming from Laredo. This time, it showed up on my phone as originating in Brownsville TX, which is where I used to live years ago and my phone number is still a Brownsville number.
My point being...Laredo is 3-1/2 hours from Brownsville...just because a number shows up as coming from where you live, or where you used to live, doesn't mean it's not a spam call. The spammers have and use technology that allows their number to "appear" as if it's coming from anywhere they want it to.
Your best bet remains...if it's a number you don't know, don't answer it. If they don't leave a message, block them. Even if they leave a message, if it's clear it's just a telemarketer or some other unwanted intruder, block them anyway. Your life will be less stressful.