I've been receiving text from people in iMessage and regular SMS that now show a +1 xxx-xxx-xxxx for their phone number. It happens to a few people, not many. It now shows the number as without a contact, so it shows without any specific information. I haven't experienced this before. The issue is with random numbers and didn't show up until 8.1. Also, when the message is displayed in Messages for Mac, it shows the +1 there as well. Any ideas?