View the current NSCC file formats and master files for CNS. Log in to view all of the content available in the Learning Center.

Click to access and download the NSCC file formats for CNS. 

Note: For access to the CNS Projection (Midday) MRO: AutoRoute ID 02042358 and CNS Projection (Midday) CSV: AutoRoute ID 02042366 files, see the UST1 site.

CNS Intraday ISO 15022 Message Format

Modified September 12, 2025

CNS Opening Position Prior to Day Cycle: AutoRoute ID 02040949

Modified September 12, 2025

CNS Miscellaneous Activity (Extended) MRO: AutoRoute ID 02040343 (Night) and 02040331 (Day)

Modified September 12, 2025

CNS Opening Position Prior to Night Cycle: AutoRoute 02040951

Modified September 12, 2025

CNS Projection (Midday): AutoRoute ID 02042358

Modified September 12, 2025

CNS Projection (Midday) CSV: AutoRoute ID 02042366

November 15, 2024

CNS Seg Exemption Input: DataTrak ID 06121 - Original and Y2K Format

Modified August 29, 2025

CNS Account Summary: AutoRoute ID 02042024

Modified September 12, 2025

CNS Projection Report: AutoRoute 02042022

Modified September 12, 2025

CNS Buy-In Activity: AutoRoute ID 02040890

Modified September 12, 2025

CNS Night Settlement Activity: AutoRoute ID 02042023 (Night) and 02041234 (Day)

Modified September 12, 2025

CNS® Miscellaneous Activity: AutoRoute 02042008 (Night) and 02041236 (Day)

Modified September 12, 2025

CNS Due Bill Activity MRO: AutoRoute ID 02040786

Modified September 12, 2025

CNS Dividend Activity MRO: AutoRoute ID 02040787

Modified September 12, 2025

CNS Balance Order MRO: AutoRoute ID 02040996

Modified September 12, 2025

Click to access and download the CNS master files.

CNS® Equity Master File - Production AutoRoute ID: 02040290

November 06, 2020

CNS® Broker Master File for AutoRoute ID: 02040018

January 12, 2021

CNS® Bond Security File for AutoRoute ID 02040254 (Weekly) and 02040257 (Monthly)

November 03, 2020

CNS® Reorganization Master File for AutoRoute ID: 02042251

January 12, 2021

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