# ProtocolLab HQ

HTTP codes Ports

TCP/UDP Port

389 LDAP

Lightweight Directory Access Protocol — queries directory services such as Active Directory (unencrypted).

Protocol: TCP/UDP · Port: 389

ProtocolLab HQ — HTTP codes and ports, looked up fast.

A quick developer reference for HTTP status codes and common network ports, compiled from the relevant RFCs and IANA registries. Port assignments and status semantics occasionally change; check the current standard when it matters.