Looking for information on a computer port? This page, computer port page 1, has up to 100 port numbers that you can choose from. You may not know it, but there are more than 65,000 TCP ports and 65,000 UDP ports that computers use to communicate!
A port may send/receive data one direction at a time (simplex) or simultaneously in both directions (duplex); port communication may or may not be guaranteed depending on the portocol used. These computer / network ports may also connect internal programs on a single computer system.
Find a Port - Simply click on a port number below to find detailed information about that port:
UDP Port 1 TCP Port 1 TCP Port 2 UDP Port 2 TCP Port 3 UDP Port 3 TCP Port 5 UDP Port 5 UDP Port 7 TCP Port 7 UDP Port 9 TCP Port 9 TCP Port 11 UDP Port 11 TCP Port 13 UDP Port 13 TCP Port 15 UDP Port 15 TCP Port 17 UDP Port 17 UDP Port 18 TCP Port 18 TCP Port 19 UDP Port 19 TCP Port 20 UDP Port 20 TCP Port 20 TCP Port 21 UDP Port 21 TCP Port 21 TCP Port 22 UDP Port 22 TCP Port 22 TCP Port 23 UDP Port 23 TCP Port 23 UDP Port 24 TCP Port 24 TCP Port 25 TCP Port 27 UDP Port 27 TCP Port 29 UDP Port 29 TCP Port 30 TCP Port 31 UDP Port 31 TCP Port 31 TCP Port 33 UDP Port 33 UDP Port 35 TCP Port 35 UDP Port 37 TCP Port 37 UDP Port 38 TCP Port 38 UDP Port 39 TCP Port 39 TCP Port 41 UDP Port 41 UDP Port 42 TCP Port 42 UDP Port 43 TCP Port 43 TCP Port 44 UDP Port 44 TCP Port 45 UDP Port 45 UDP Port 46 TCP Port 46 TCP Port 47 UDP Port 47 TCP Port 48 UDP Port 48 TCP Port 48 UDP Port 49 TCP Port 49 TCP Port 50 UDP Port 50 TCP Port 50 TCP Port 51 UDP Port 51 TCP Port 52 UDP Port 52 TCP Port 53 UDP Port 53 TCP Port 53 TCP Port 54 UDP Port 54 TCP Port 55 UDP Port 55 TCP Port 56 UDP Port 56 TCP Port 57 UDP Port 57 UDP Port 58 TCP Port 58 UDP Port 59 TCP Port 59 UDP Port 61 TCP Port 61Don't forget to check out our free Site Map Generator, Speed Test and other free online tools and software!