Dire Help needed on the Citizenship Case

[pob6171]

Can someone please guide as to what tel no or contact info to use to check if one's name and security check has cleared the FBI and other Relevant Agencies. My interview was quick and easy (hardly 10 mins) and the IO informed me that she is only waiting on the security check clearance. Rest she made me sign the form and had informed that everything else is fine. I would greatly appreciate if someone in the same situation can guide me as what can be done to expedite the case and the contact info for the relevant Govt Agencies. FYI I have no conviction or records whatsoever in my last 13years in US.
Grealty appreciate all help indeed.
Thanks