TSSRegistry: Who do I contact if I have additional questions about the TSSRegistry? August 29, 2024 13:47 Updated We are here to help! Please contact our Help Desk at 844.HEY.SOMOS (844.439.7666), Option 1. Related articles TSSRegistry: How does the TSSRegistry work? TSSRegistry API: Is there a TSSRegistry API for Toll-Free Service Providers (Resp Orgs)?