I get calls from this number as well as other related numbers. I think the last 4 is the only thing that changes. I imagine they want more money from me for some fake debt. I've never answered so I can't assume its the company or the publisher.
When a company that claims to be a publisher calls, my guess is that it's not a real call, unless it's from a publisher that the target has previously had interactions with that they initiated. If it's on the behalf of a magazine company, they get paid directly from the magazine company. They should have no reason to call the customer directly.