FICC-MBS Alert! FICC has been notified of J.P. Morgan Securities LLCโ€™s intent to close its JSPB Clearing and EPN account effective September 01, 2020. No further trade date submissions related to this account will be accepted.

https://www.dtcc.com/-/media/Files/pdf/2021/8/25/MBS1015-21.pdf

Reddit Post