'What is the meaning of hash symbol followed by number after IP address when I use nslookup?

When I type command:
$ nslookup www.google.com
The results are:
Server: XXX.XXX.XX.X
Address: XXX.XXX.XX.X#NN

Non-authoritative answer:
....
What I want to ask is what is the meaning of the number after the hash symbol and the ip address before it.



Solution 1:[1]

The hash and number refer to the network port used by DNS

Sources

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Source: Stack Overflow

Solution Source
Solution 1 user213468