We received a call from this number yesterday. They are based in Atlanta as far as I can tell and are the National Publishing Company. The caller said he was assigned to contact me about the Federal employer posters required to be displayed at our business and if I was up to date on all of these. He made it seem urgent that I buy these. There are companies that sell these at a hefty charge, but you can download and print them yourself from Federal and State websites for free.