This read-only value reports the Random Access Terminal Identifier (RATI) that the modem uses when sending a UATI request message to the network to obtain a UATI allocation. This is primarily a diagnostic identifier an admin or carrier support engineer would reference when tracing the modem's initial network-access handshake in detailed session logs. For example, if a modem repeatedly fails to progress from RATI-based access to receiving a UATI, that points to a failure early in the network registration process.