But I just had a text claiming to be from PayPal. Somehow I doubted that Paypal really do send texts that contain nothing to indicate that they know anything about me other than their number, and ask me to click on a link that isn't Paypal to resolve the problem. So I checked with Paypal (via their web site, not this link, of course) and needless to say they hadn't contacted me.
While I was checking this out I wanted to look up the phone number that sent the text and found that most of the sites that can do a lookup charge for everything. Since I only wanted to know the carrier I did some more searching and eventually found this site, which is free:
It turned out it came from Vodaphone, which I suppose is possible, except that the last genuine text I had from Paypal came from a five-digit phone number, which I'm pretty sure is only possible for really big corporations.
No real moral here, just thought others might find that URL useful.
Also posted at https://ffutures.dreamwidth.org/2206181.html, where there are comments. Please comment here or there using OpenID.