Get LISTEN TCP connections on localhost

tcp_listen.sh

#!/bin/bash
netstat -atn | grep LISTEN  | grep "127.0.0.1"

This command will list all tcp connection listening on localhost like:

tcp4       0      0  127.0.0.1.4380         *.*                    LISTEN     
tcp4       0      0  127.0.0.1.4370         *.*                    LISTEN     
tcp4       0      0  127.0.0.1.4371         *.*                    LISTEN     
tcp4       0      0  127.0.0.1.4382         *.*                    LISTEN     
tcp4       0      0  127.0.0.1.5037         *.*                    LISTEN     
tcp4       0      0  127.0.0.1.17603        *.*                    LISTEN     
tcp4       0      0  127.0.0.1.17600        *.*                    LISTEN     
tcp4       0      0  127.0.0.1.15292        *.*                    LISTEN

Do you know what is the port 15292?
When I go to http://localhost:15292, I have the following error:

ERROR
The request could not be satisfied.
Bad request.
----------------------------------------
Generated by cloudfront (CloudFront)
Request ID: [a request ID]

Do you know what is the port 15292?
When I go to http://localhost:15292, I have the following error:

ERROR
The request could not be satisfied.
Bad request.
----------------------------------------
Generated by cloudfront (CloudFront)
Request ID: [a request ID]

I had the same port open. I'm on MacOS and after running:

lsof -i 4 | grep -i "localhost:15292"

It turns out it was the 'Adobe Desktop Service', maybe it's the same for you?