How do i contact cross check? Contact Us. Corporate Headquarters: 1440 North McDowell Blvd. Petaluma, CA 94954 Phone: (707) 665-2100 [email protected]. Who is crosscrosscheck networks? Crosscheck Networks is an industry leader in API Testing with over 85,000 deployments worldwide. Our SOAPSonar product tests cloud, mobile, and B2B APIs for functional, performance, and security.What is the crosschex mobile app and how does it work? Unlock the doors and clock in with your phone. With CrossChex Mobile App, you can grant and revoke access to anyone, anytime without having to worry about cards, FOBs, or remembering PIN numbers. 1.What is the crosschex series software? The CrossChex series software includes time and attendance and access control functions and support all Anviz Biometric terminals (fingerprint, face and iris) CrossChex meets the global market demand.