Registered as "surf" to an individual decades ago, with no published protocol behind the name.
IANA carries 1010/tcp and 1010/udp as surf, assigned to a named individual, with no description beyond the word and no specification anywhere. Nothing in common use implements it, and nmap's frequency data shows 1010 open very rarely. It has nothing to do with suckless.org's surf web browser, which is a desktop client and listens on no port at all. As with its neighbours, a listener here was chosen locally and needs identifying by hand.
Expose with care
The registration is a name and nothing more, so the port carries no security properties of its own. Judge whatever is actually answering.
$ sudo lsof -nP -iTCP:1010 -sTCP:LISTENSeen this on your network? Beige Box scans your Wi-Fi and shows every open port on every device — and its Ports tool links straight back here.
Get Beige Box →also available as JSON · Markdown
Corrections or a missing port? Reply @rimrocksystems.