List of TCP and UDP port numbers. This is a list of notable port numbers used by protocols of the transport layer of the Internet protocol suite for the establishment of host to host connectivity. Originally, port numbers were used by the Network Control Program NCP in the ARPANET for which two ports were required for half duplex transmission. Later, the Transmission Control Protocol TCP and the User Datagram Protocol UDP needed only one port for full duplex, bidirectional traffic. The even numbered ports were not used, and this resulted in some even numbers in the well known port number range being unassigned. Tcp Packet Generator Tool Windows 7This is a list of notable port numbers used by protocols of the transport layer of the Internet protocol suite for the establishment of hosttohost connectivity. This simple utility reads and writes data across TCP or UDP network connections. It is designed to be a reliable backend tool to use directly or easily drive by. Cain Abel is a password recovery tool for Microsoft Operating Systems. It allows easy recovery of various kind of passwords by sniffing the network, cracking. Tcpmux 1 tcp TCP Port Service Multiplexer. Character Generator chargen 19 udp Character Generator ftpdata 20 tcp File Transfer. Y6uqUkzRFU/VSP8bQvDMbI/AAAAAAAAB1k/S9vsvzDUmqU/s1600/newToolWar.png' alt='Tcp Packet Generator Tool Windows Painted' title='Tcp Packet Generator Tool Windows Painted' />The Stream Control Transmission Protocol SCTP and the Datagram Congestion Control Protocol DCCP also use port numbers. They usually use port numbers that match the services of the corresponding TCP or UDP implementation, if they exist. The Internet Assigned Numbers Authority IANA is responsible for maintaining the official assignments of port numbers for specific uses. However, many unofficial uses of both well known and registered port numbers occur in practice. Similarly many of the official assignments refer to protocols that were never or are no longer in common use. This article lists port numbers and their associated protocols that have experienced significant uptake. Table legendedit  Official Port is registered with IANA for the application. Unofficial Port is not registered with IANA for the application. Multiple use Multiple applications are known to use this port. Well known portseditThe port numbers in the range from 0 to 1. Complete Technical Acronyms, Glossary Definitions for PC, SAN, NAS, QA, Testing, HDTV, Wireless, Linux, Embedded, Networks, Video, Digital, pharma, Unix, Video. WhatsNew. 20110124 Vortex86DX Windows Embedded CE 6. SDK updated. 20101022 Vortex86DX Windows Embedded CE 6. SDK updated. Truly free antivirus software, free firewalls, free email protection software, free virus prevention software, tests of antivirus programs, links to specialized. We are a software download site without ads, fake download buttons or crapware. This site is 100 supported by donations. Please consider making one if you like. Builder.PNG' alt='Tcp Packet Generator Tool Windows' title='Tcp Packet Generator Tool Windows' />List of 75 security tools based on a 2003 vote by hackers. Netsniffng toolkit Summary. Linux networking toolkit, a Swiss army knife for your daily Linux network plumbing if you will. They are used by system processes that provide widely used types of network services. On Unix like operating systems, a process must execute with superuser privileges to be able to bind a network socket to an IP address using one of the well known ports. Well known ports. Port. TCPUDPDescription. IANA status. 0NANAIn programming APIs not in communication between hosts, requests a system allocated dynamic port4NA0. Reserved. Reserved. Reserved. Official. TCPAssigned. TCP Port Service Multiplexer TCPMUX. Historic. Both TCP and UDP have been assigned to TCPMUX by IANA,1 but by design only TCP is specified. Official. Reserved. Reserved. Unassigned. Official. TCPUDPRemote job entry. Official. 6Reserved. Reserved. Unassigned. Official. 7TCPUDPEcho Protocol67Official. Reserved. Reserved. Unassigned. Official. UDPDiscard Protocol9Official. UDPWake on LAN1. Unofficial. Reserved. Reserved. Unassigned. Official. TCPUDPActive Users systat service1. Official. 12. Reserved. Reserved. Unassigned. Official. 13. TCPUDPDaytime Protocol1. Official. 14. Reserved. Reserved. Unassigned. Official. 15. TCPUDPPreviously netstat service11. Unofficial. 16. Reserved. Reserved. Unassigned. Official. 17. TCPUDPQuote of the Day QOTD1. Official. 18. TCPUDPMessage Send Protocol1. Official. 19. TCPUDPCharacter Generator Protocol CHARGEN1. Official. 20. Assigned. File Transfer Protocol FTP data transfer7Official. Assigned. File Transfer Protocol FTP control command781. Official. 22. UDPSecure Shell SSH,7 secure logins, file transfers scp, sftp and port forwarding. Official. 23. TCPAssigned. Telnet protocolunencrypted text communications72. Official. 25. TCPAssigned. Simple Mail Transfer Protocol SMTP,72. Official. 26. Reserved. Reserved. Unassigned. Official. 37. TCPUDPTime Protocol2. Official. 38. TCPUDPRoute Access Protocol RAP2. Official. 39. TCPUDPResource Location Protocol RLP2. Official. 40. Reserved. Reserved. Unassigned. Official. 42. TCPUDPHost Name Server Protocol2. Official. 43. TCPUDPWHOIS protocol2. Official. 49. TCPUDPTACACS Login Host protocol2. Official. 50. TCPUDPRemote Mail Checking Protocol3. Serial Data In Arduino. Official. 51. Reserved. Official. 51. TCPUDPPreviously Interface Message Processor logical address managementcitation neededUnofficial. TCPUDPXerox Network Systems XNS Time ProtocolimportanceOfficial. TCPUDPDomain Name System DNS7Official. TCPUDPXerox Network Systems XNS clearinghouseimportanceOfficial. TCPUDPXerox Network Systems XNS authenticationimportanceOfficial. Statik 2012 Rar. TCPUDPAny private terminal accessfurther explanation neededOfficial. TCPUDPXerox Network Systems XNS MailimportanceOfficial. Assigned. UDPBootstrap Protocol BOOTP server 7 also used by Dynamic Host Configuration Protocol DHCPOfficial. Assigned. UDPBootstrap Protocol BOOTP client 7 also used by Dynamic Host Configuration Protocol DHCPOfficial. Assigned. UDPTrivial File Transfer Protocol TFTP73. Official. 70. TCPUDPGopher protocol3. Official. 717. 4TCPUDPNETRJS protocol3. Official. 75. TCPUDPAny private dial out servicefurther explanation neededOfficial. TCPUDPAny private Remote job entryfurther explanation neededOfficial. TCPAssigned. Finger protocol73. Official. 80. UDP4. Hypertext Transfer Protocol HTTP74. Official. 80. UDPQUIC from Chromium for HTTPcitation neededUnofficial. NANAUnassigned. Official. TCPTor. Parkonion routingverification neededUnofficial. UDPTor. Park controlverification neededUnofficial. Any private terminal linkfurther explanation neededOfficial. TCPAssigned. Kerberos74. Official. 90. TCPUDPdnsix Do. D Network Security for Information Exchange Securit sic Attribute Token MapimportanceOfficial. TCPUDPPoint. Cast dotcom1third party source neededUnofficial. TCPWIP message protocolverification neededUnofficial. NANAUnassigned with known unauthorized usefurther explanation needed1Official. TCPUDPNIChost name. Official. 10. 2TCPUDPISO Transport Service Access Point TSAP Class 0 protocol 4. Official. 10. 4TCPUDPDigital Imaging and Communications in Medicine DICOM also port 1. Official. 10. 5TCPUDPCCSO Nameserver4. Official. 10. 7TCPUDPRemote User Telnet Service RTelnet4. Official. 10. 8TCPUDPIBM Systems Network Architecture SNA gateway access server. Official. 10. 9TCPUDPPost Office Protocol, version 2 POP25. Official. 11. 0TCPAssigned. Post Office Protocol, version 3 POP375. Official. 11. 1TCPUDPOpen Network Computing Remote Procedure Call ONC RPC, sometimes referred to as Sun RPCOfficial. TCPVirtual Router Redundancy Protocol VRRP5. Unofficial. 11. 3TCPIdent, authentication serviceidentification protocol,75. IRC servers to identify users. Official. 11. 3TCPAssigned. Authentication Service auth, the predecessor to identification protocol. Used to determine a users identity of a particular TCP connection. Official. 11. 4NANAUnassigned deprecated since June 2. Official. 11. 5TCPUDPSimple File Transfer Protocol75. Simple Payroll Program Java. Official. 11. 7TCPUDPUUCP Mapping Project path servicecitation neededOfficial. TCPUDPStructured Query Language SQL ServicesJargonOfficial. TCPAssigned. Network News Transfer Protocol NNTP,7 retrieval of newsgroup messages5. Official. 12. 3Assigned. UDPNetwork Time Protocol NTP, used for time synchronization7Official. TCPUDPFormerly Unisys Unitary Login, renamed by Unisys to NXEdit. Used by Unisys Programmers Workbench for Clearpath MCP, an IDE for Unisys MCP software development. Official. 13. 5TCPUDPDCEendpoint resolution. Official. 13. 5TCPUDPMicrosoft EPMAP End Point Mapper, also known as DCERPC Locator service,5. DHCP server, DNS server and WINS. Also used by DCOMOfficial. Assigned. UDPNet. BIOS Name Service, used for name registration and resolution6. Official. 13. 8TCPUDPNet. BIOS Datagram Service76. Official. 13. 9TCPAssigned. Net. BIOS Session Service6. Official. 14. 3TCPAssigned.