asdf wrote:

The National Fares Manual includes a 3-letter code next to each fare
to indicate which company sets that fare. Most NR zonal fares are
shown as being set by "DBA" (not sure who that is). But the NLL ones
you quote are shown as being set by STS (Silverlink). So it does
indeed seem to be an exception.

I think DBA probably stands for Database Administrator, and appears on
all the fares set by TfL rather than a TOC.

HTH,

Barry