knownports / Port ranges / 100–199
System PortsPorts 100–199
IANA lists at least one assignment on 98 of the 100 numbers from 100 to 199, 98.0%. 1 number here is assigned on TCP alone and 0 on UDP alone. Only 179 has an SCTP entry as well.
Ports with their own page: 143 imap
Every assigned number from 100 to 199
100–199 · 98 numbers assigned
| Port | Service | Protocols | Label | Registered |
|---|---|---|---|---|
| 101 | hostname | TCPUDP | NIC Host Name Server | — |
| 102 | iso-tsap | TCPUDP | ISO-TSAP Class 0 | — |
| 103 | gppitnp | TCPUDP | Genesis Point-to-Point Trans Net | — |
| 104 | acr-nema | TCPUDP | ACR-NEMA Digital Imag. & Comm. 300 | — |
| 105 | csnet-nscso | TCPUDP | Mailbox Name Nameserver CCSO name server protocol | — |
| 106 | 3com-tsmux | TCPUDP | 3COM-TSMUX | — |
| 107 | rtelnet | TCPUDP | Remote Telnet Service | — |
| 108 | snagas | TCPUDP | SNA Gateway Access Server | — |
| 109 | pop2 | TCPUDP | Post Office Protocol - Version 2 | — |
| 110 | pop3 | TCPUDP | Post Office Protocol - Version 3 | — |
| 111 | sunrpc | TCPUDP | SUN Remote Procedure Call | — |
| 112 | mcidas | TCPUDP | McIDAS Data Transmission Protocol | — |
| 113 | authident | TCPUDP | Authentication Service — | — |
| 115 | sftp | TCPUDP | Simple File Transfer Protocol | — |
| 116 | ansanotify | TCPUDP | ANSA REX Notify | — |
| 117 | uucp-path | TCPUDP | UUCP Path Service | — |
| 118 | sqlserv | TCPUDP | SQL Services | — |
| 119 | nntp | TCPUDP | Network News Transfer Protocol | — |
| 120 | cfdptkt | TCPUDP | CFDPTKT | — |
| 121 | erpc | TCPUDP | Encore Expedited Remote Pro.Call | — |
| 122 | smakynet | TCPUDP | SMAKYNET | — |
| 123 | ntp | TCPUDP | Network Time Protocol | — |
| 124 | ansatrader | TCPUDP | ANSA REX Trader | — |
| 125 | locus-map | TCPUDP | Locus PC-Interface Net Map Ser | — |
| 126 | nxedit | TCPUDP | NXEdit | — |
| 127 | locus-con | TCPUDP | Locus PC-Interface Conn Server | — |
| 128 | gss-xlicen | TCPUDP | GSS X License Verification | — |
| 129 | pwdgen | TCPUDP | Password Generator Protocol | — |
| 130 | cisco-fna | TCPUDP | cisco FNATIVE | — |
| 131 | cisco-tna | TCPUDP | cisco TNATIVE | — |
| 132 | cisco-sys | TCPUDP | cisco SYSMAINT | — |
| 133 | statsrv | TCPUDP | Statistics Service | — |
| 134 | ingres-net | TCPUDP | INGRES-NET Service | — |
| 135 | epmap | TCPUDP | DCE endpoint resolution | — |
| 136 | profile | TCPUDP | PROFILE Naming System | — |
| 137 | netbios-ns | TCPUDP | NETBIOS Name Service | — |
| 138 | netbios-dgm | TCPUDP | NETBIOS Datagram Service | — |
| 139 | netbios-ssn | TCPUDP | NETBIOS Session Service | — |
| 140 | emfis-data | TCPUDP | EMFIS Data Service | — |
| 141 | emfis-cntl | TCPUDP | EMFIS Control Service | — |
| 142 | bl-idm | TCPUDP | Britton-Lee IDM | — |
| 143 | imap | TCP | Internet Message Access Protocol | — |
| 144 | uma | TCPUDP | Universal Management Architecture | — |
| 145 | uaac | TCPUDP | UAAC Protocol | — |
| 146 | iso-tp0 | TCPUDP | ISO-IP0 | — |
| 147 | iso-ip | TCPUDP | ISO-IP | — |
| 148 | jargon | TCPUDP | Jargon | — |
| 149 | aed-512 | TCPUDP | AED 512 Emulation Service | — |
| 150 | sql-net | TCPUDP | SQL-NET | — |
| 151 | hems | TCPUDP | HEMS | — |
| 152 | bftp | TCPUDP | Background File Transfer Program | — |
| 153 | sgmp | TCPUDP | SGMP | — |
| 154 | netsc-prod | TCPUDP | NETSC | — |
| 155 | netsc-dev | TCPUDP | NETSC | — |
| 156 | sqlsrv | TCPUDP | SQL Service | — |
| 157 | knet-cmp | TCPUDP | KNET/VM Command/Message Protocol | — |
| 158 | pcmail-srv | TCPUDP | PCMail Server | — |
| 159 | nss-routing | TCPUDP | NSS-Routing | — |
| 160 | sgmp-traps | TCPUDP | SGMP-TRAPS | — |
| 161 | snmp | TCPUDP | SNMP | — |
| 162 | snmptrap | TCPUDP | SNMPTRAP | — |
| 163 | cmip-man | TCPUDP | CMIP/TCP Manager | — |
| 164 | cmip-agent | TCPUDP | CMIP/TCP Agent | — |
| 165 | xns-courier | TCPUDP | Xerox | — |
| 166 | s-net | TCPUDP | Sirius Systems | — |
| 167 | namp | TCPUDP | NAMP | — |
| 168 | rsvd | TCPUDP | RSVD | — |
| 169 | send | TCPUDP | SEND | — |
| 170 | print-srv | TCPUDP | Network PostScript | — |
| 171 | multiplex | TCPUDP | Network Innovations Multiplex | — |
| 172 | cl-1cl/1 | TCPUDP | Network Innovations CL/1 Network Innovations CL/1 | — |
| 173 | xyplex-mux | TCPUDP | Xyplex | — |
| 174 | mailq | TCPUDP | MAILQ | — |
| 175 | vmnet | TCPUDP | VMNET | — |
| 176 | genrad-mux | TCPUDP | GENRAD-MUX | — |
| 177 | xdmcp | TCPUDP | X Display Manager Control Protocol | — |
| 178 | nextstep | TCPUDP | NextStep Window Server | — |
| 179 | bgp | TCPUDPSCTP | Border Gateway Protocol | — |
| 180 | ris | TCPUDP | Intergraph | — |
| 181 | unify | TCPUDP | Unify | — |
| 182 | audit | TCPUDP | Unisys Audit SITP | — |
| 183 | ocbinder | TCPUDP | OCBinder | — |
| 184 | ocserver | TCPUDP | OCServer | — |
| 185 | remote-kis | TCPUDP | Remote-KIS | — |
| 186 | kis | TCPUDP | KIS Protocol | — |
| 187 | aci | TCPUDP | Application Communication Interface | — |
| 188 | mumps | TCPUDP | Plus Five's MUMPS | — |
| 189 | qft | TCPUDP | Queued File Transport | — |
| 190 | gacp | TCPUDP | Gateway Access Control Protocol | — |
| 191 | prospero | TCPUDP | Prospero Directory Service | — |
| 192 | osu-nms | TCPUDP | OSU Network Monitoring System | — |
| 193 | srmp | TCPUDP | Spider Remote Monitoring Protocol | — |
| 194 | irc | TCPUDP | Internet Relay Chat Protocol | — |
| 195 | dn6-nlm-aud | TCPUDP | DNSIX Network Level Module Audit | — |
| 196 | dn6-smm-red | TCPUDP | DNSIX Session Mgt Module Audit Redir | — |
| 197 | dls | TCPUDP | Directory Location Service | — |
| 198 | dls-mon | TCPUDP | Directory Location Service Monitor | — |
| 199 | smux | TCPUDP | SMUX | — |