Decommissioning Notice:
- NSCC retired the CNS® Level 2 Exemption capabilities on August 28, 2025. Updates to the CNS resources align with this change. See the Level 2 Exemptions Process Decommission (A9619) important notice.
- NSCC plans to retire the Fully-Paid-For account on September 11, 2025. Updates to the CNS resources will align with this production date. See the Fully-Paid-For Account Decommission (A9623) important notice.
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
June 27, 2017
CNS Opening Position Prior to Day Cycle: AutoRoute ID 02040949
August 31, 2017
CNS Miscellaneous Activity (Extended) MRO: AutoRoute ID 02040343 (Night) and 02040331 (Day)
November 15, 2024
CNS Opening Position Prior to Night Cycle: AutoRoute 02040951
September 30, 2022
CNS Projection (Midday): AutoRoute ID 02042358
June 20, 2024
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 Fully Paid Input: DataTrak ID 06351 - Y2K Format
July 18, 1997
CNS Account Summary: AutoRoute ID 02042024
September 04, 2013
CNS Projection Report: AutoRoute 02042022
March 22, 2016
CNS Buy-In Activity: AutoRoute ID 02040890
February 24, 2016
CNS Night Settlement Activity: AutoRoute ID 02042023 (Night) and 02041234 (Day)
September 04, 2013
CNS® Miscellaneous Activity: AutoRoute 02042008 (Night) and 02041236 (Day)
September 04, 2013
CNS Due Bill Activity MRO: AutoRoute ID 02040786
June 22, 1999
CNS Dividend Activity MRO: AutoRoute ID 02040787
June 22, 1999
CNS Balance Order MRO: AutoRoute ID 02040996
October 22, 2021
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