Port numbers
Since the specification uses the colon (:) as a
separator, the colon cannot be used as the port number marker, as
in IPv4:
https://langley:19000
Instead, the parentheses notation is used, as in the following example:
2001:0db8:85a3:0000:0000:8a2e:0370:7334(8080)
Note: The port number is included in parentheses
(8080).
For IPv6 addresses, searches by using port numbers are not supported.