Unassigned at IANA with no conventional service; whatever is listening picked the number itself.
IANA's registry leaves 1002–1007 unassigned, and nmap lists 1007/tcp as unknown with one of the lowest open-frequency scores in this range. There is no protocol to expect and no scanner label to lean on. What it does tell you: 1007 is inside the system port range defined by RFC 6335, so on a Unix-like host a process needed root to bind it, and something privileged is answering. That is the interesting part, and it is worth chasing down.
Expose with care
An unnamed, privileged listener is exactly the thing to identify before allowing it through a firewall — the registry gives you no cover here.
$ sudo lsof -nP -iTCP:1007 -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.