Last week, the Federal Communications Commission (“FCC” or “Commission”) issued an Enforcement Advisory reminding telecommunications carriers and interconnected VoIP service providers of their obligation to file Annual Customer Proprietary Network Information (CPNI) Certifications which memorializes their compliance with Commission Rules for protecting CPNI. Telecommunications carriers and interconnected VoIP service providers are required to file their Annual CPNI Certifications by March 1, 2013.