Search TCP / UDP Port Assignment Database
Search result for: 646
From: [IANA] [NMAP] [WP] [SANS]
| Service | Port | Prot. | Description | Notes |
| ldp | 646 | tcp | LDP | [IANA] |
| ldp | 646 | udp | LDP | [IANA] |
| ldp | 646 | tcp | # Label Distribution | [NMAP] |
| 646 | tcp/udp | Label Distribution Protocol (LDP), a routing protocol used in MPLS networks | [WP] Official | |
| ldp | 646 | tcp | LDP | [SANS] |
| ldp | 646 | udp | LDP | [SANS] |
How to use:
To search by port enter a number in the range between 0 and 65535. To search service / protocol description by keyword enter a text string at least three characters long. Wild-card (*) is supported if it is the last character in the search string. Alternatively, select a port from one of the ranges listed below.
Port range: 0-1023
0-1023 - Well-known or System Ports
1024-49151 - Registered or User Ports
49152-65535 - Dynamic/Private or Ephemeral Ports
Information Sources:
[IANA]
IANA Service Name and Transport Protocol Port Number Registry
[NMAP]
NMAP.org well known service port numbers
[WG] WintelGuy.com port number database compiled from many different sources, including
Microsoft, VMWare, Citrix, Oracle, etc.
[WP] Wikipedia - List of TCP and UDP port numbers
[SANS] SANS Inst. / DShield service list