Get all endpoints in an Azure Subscription - third approach with formatted output and related cloud service and VM name.

Get-SubscriptionEndpoints3.ps1

# Get all Azure VMs in the current subscription.
Get-AzureVM | ForEach-Object {
    # Save the current VM for use in the nested ForEach.
    $vm = $_
    # Get all endpoints of the current VM.
    $endpoints = Get-AzureEndpoint -VM $vm
    # Iterate all endpoints of the current VM.
    $output = $endpoints | ForEach-Object {
        # Create our own set of properties we want for output.
        $hashtable = @{ServiceName=$vm.ServiceName; InstanceName=$vm.InstanceName; DNSName=$vm.DNSName; Protocol=$_.Name; Vip=$_.Vip; ExternalPort=$_.Port; InternalPort=$_.LocalPort}
        # Create a new PowerShell object for output.
        New-Object PSObject -Property $hashtable
    }
    $output
 }  | Format-Table -Property ServiceName, InstanceName, Vip, Protocol, ExternalPort, InternalPort, DNSName -AutoSize

<# Output

ServiceName InstanceName Vip            Protocol       ExternalPort InternalPort DNSName                        
----------- ------------ ---            --------       ------------ ------------ -------                        
leasetest2  host2        104.40.188.19  PowerShell             5986         5986 http://leasetest2.cloudapp.net/
leasetest2  host2        104.40.188.19  Remote Desktop        56595         3389 http://leasetest2.cloudapp.net/
leasetest4  host4        191.233.81.126 PowerShell             5986         5986 http://leasetest4.cloudapp.net/
leasetest4  host4        191.233.81.126 Remote Desktop        61942         3389 http://leasetest4.cloudapp.net/
leasetest5  host5        137.117.194.91 PowerShell             5986         5986 http://leasetest5.cloudapp.net/
leasetest5  host5        137.117.194.91 Remote Desktop        63809         3389 http://leasetest5.cloudapp.net/

#>

I use this Gist in my blog post on http://blogs.msdn.com/b/pkirchner/archive/2015/01/02/tipp-powershell-amp-azure-alle-offenen-ports-in-einer-subscription-auflisten.aspx.