Wuick Script:

# This function runs faster than the "Get-ADDomainController -Filter *" method

function listControllers{
$domain = [directoryServices.ActiveDirectory.Domain]::GetCurrentDomain().Name
$dcList=(nltest /dclist:$domain)
$dcList = $dcList[1..($dcList.Length-2)] -replace ".$domain*.*" -replace ".* "
return $dcList
}

listControllers

Output:

Get list of DCs in domain 'kimconnect.com' from '\\dc1.kimconnect.com'.

            dc1.KimConnect.com [PDC]  [DS] Site: KimConnect
            dc2.KimConnect.com        [DS] Site: KimConnect
   dc001.KimConnect.com        [DS] Site: KimConnect
   DC002.KimConnect.com        [DS] Site: KimConnect
   DC003.KimConnect.com        [DS] Site: KimConnect
   LPVADDC004.KimConnect.com        [DS] Site: KimConnectLV
   dc005.KimConnect.com        [DS] Site: KimConnectLV
   DC006.KimConnect.com [RODC] [DS] Site: WebDMZ
   DC007.KimConnect.com [RODC] [DS] Site: KimConnect-PublicDMZ
   DC008.KimConnect.com [RODC] [DS] Site: WebDMZ
   DC009.KimConnect.com [RODC] [DS] Site: KimConnect-PublicDMZ
   DC010.KimConnect.com [RODC] [DS] Site: KimConnectLV-PublicDMZ
   DC011.KimConnect.com [RODC] [DS] Site: KimConnectLV-WebDMZ
  DC012.KimConnect.com [RODC] [DS] Site: KimConnectLV-WebDMZ

The command completed successfully