Every DCC Decoder has an ID code that tell you who made it The Value in CV 8 as per the list below. 1: CML Electronics Limited 2: Train Technology 11: NCE Corporation 12: Wangrow 13: Public Domain & Do-It-Yourself Decoders 14: PSI - Dynatrol 15: Ramfixx Technologies (Wangrow) 17: Advanced IC Engineering, Inc. 18: JMRI 19: AMW 20: T4T - Technology for Trains GmbH 21: Kreischer Datentechnik 22: KAM Industries 23: S Helper Service 24: MoBaTron.de 25: Team Digital, LLC 26: MBTronik - PiN GITmBH 27: MTH Electric Trains, Inc. 28: Heljan A/S 29: Mistral Train Models 30: Digsight 31: Brelec 32: Regal Way Co. Ltd 34: Aristo-Craft 35: Elektronik & Modell Produktion 36: DCCConcepts 37: NAC Services, Inc. 38: Broadway Limited Imports, LLC 39: Educational Computer, Inc (DCCdevices.com) 40: KATO Precision Models 41: Passmann Modellbahnzubehoer 42: Digirails 43: Ngineering 44: SPROG-DCC 45: ANE Model Co., LTD. 46: GFB Designs 47: Capecom 48: Hornby Hobbies Ltd. 49: Joka Electronic 50: N & Q Electronics 51: DCC Supplies, Ltd 52: Krois-Modell 53: Rautenhaus Digital 54: TCH Technology 55: QElectronics GmbH 56: LDH 57: Rampino Elektronik 58: KRES GmbH 59: Tam Valley Depot 60: Bluecher-Elektronik 61: TrainModules 62: Tams Elektronik GmbH 63: Noarail 64: Digital Bahn 66: Railnet Solutions, LLC 68: MAWE Elektronik 69: E-Modell 71: New York Byano Limited 72: MTB Model 73: The Electric Railroad Company 74: PpP Digital 75: DigiTools Electronics Servicing and Contractor Ltd. 76: Auvidel 77: LS Models Sprl 85: Uhlenbrock Elektronik GmbH 87: RR-CirKits 95: Sanda Kan Industrial (1981) Ltd. 97: Doehler & Haas 99: Lenz Elektronik GmbH 101: Bachmann Trains 103: Nagasue System Design Office 105: Computer Dialysis France 109: Viessmann Modellspielwaren GmbH 111: aber & Koenig Electronics GmbH 113: QS Industries 115: Dietz Modellbahntechnik 117: cT Elektronik 119: W. S. Ataras Engineering 123: Mssoth Elektronik, GmbH 125: ProfiLok Modellbahntechnik GmbH 127: Atlas Model Railroad Co., Inc. 129: Digitrax 131: Trix Modelleisenbahn 132: ZTC Controls Ltd. 133: Intelligent Command Control 135: CVP Products 139: RealRail Effects 141: Throttle-Up (Soundtraxx) 143: Model Rectifier Corp. 145: Zimo Elektronik 147: Umelec Ing. Buero 149: Rock Junction Controls 151: Electronic Solutions Ulm GmbH & Co KG 153: Train Control Systems 155: Gebr. Fleischmann GmbH & Co. 157: Kuehn Ing. 159: LGB (Ernst Paul Lehmann Patentwerk) 161: Modelleisenbahn GmbH (formerly Roco) 163: WP Railshops 165: Model Electronic Railway Group 170: AuroTrains 173: Arnold - Rivarossi 186: br /AWA Modellspielwaren GmbH & Co. 204: Con-Com GmBH 225: Elproma Electronics Poland 238: NMRA reserved