This message type is sent by a custodian to a financial institution for which it holds securities.
It is used to provide certificate numbers of securities.
This is a stand-alone message and does not supplement any other message.
| Status | Tag | Field Name | Content/Options | No. |
| M | 28 | Page Number/Continuation Indicator | 5n[/2n] | 1 |
| M | 20 | Transaction Reference Number | 16x | 2 |
| O | 21 | Related Reference | 16x | 3 |
| O | 83a | Safekeeping Account | A, C, or D | 4 |
| M | 67A | Statement Period | 6!n[/6!n] | 5 |
| O | 35A | Quantity of Securities | 3!a15d | 6 |
| M | 35B | Identification of Securities | [ISIN1!e12!c] [4*35x] |
7 |
| M | 35F | Certificate Number(s) | 35*50x | 8 |
| O | 72 | Sender to Receiver Information | 6*35x | 9 |
There are no network validated rules for this message type.
When the Sender is providing a statement of numbers for more than one type of security, more than one MT 577 must be sent.