Network port
Port 110
- Port 110
- pop3
- System (well-known)
Port 110 is registered to pop3: POP3 mail retrieval. It runs over TCP and falls in the system (well-known) range.
Service
Port number110
IANA service namepop3
Usually runsPOP3 mail retrieval
TransportTCP
Encrypted by defaultNotraffic is readable in transit unless the protocol adds its own encryption
Range and representation
IANA rangeSystem (well-known)assigned by IANA; binding needs privilege on Unix
Needs privilege to bindYes on Unixports below 1024 need root or CAP_NET_BIND_SERVICE
Hexadecimal0x006E
Binary0000000001101110
Bits needed7
Highest possible port65,535the field is 16 bits wide
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