{
  "port": 16016,
  "protocol": "tcp",
  "service": "Unassigned",
  "oneLiner": "No registration, no known default service — an open 16016 identifies nothing on its own.",
  "whatItIs": "16016 is unassigned at IANA and unnamed in Nmap's services file, yet it sits inside Nmap's default top-1000 TCP ports because real-world scans see it open often enough to be worth a probe. No widely deployed product documents it as a default. A listener here is almost always an application or container that picked a memorable number.",
  "exposure": {
    "verdict": "careful",
    "note": "Judge it by what answers, not by the number. Run a version probe; an unknown service on a public interface deserves the same suspicion as any unexplained daemon."
  },
  "checkCommand": "nmap -Pn -sV -p 16016 TARGET",
  "links": [
    {
      "title": "IANA Service Name and Transport Protocol Port Number Registry",
      "url": "https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml",
      "kind": "iana"
    },
    {
      "title": "Nmap services frequency database",
      "url": "https://github.com/nmap/nmap/blob/master/nmap-services",
      "kind": "github"
    }
  ]
}