Here's a picture of one crossing in Bakerfield:

There is a 559 area code on the relay case with no DOT number. The number they want reported is actually the milepost number.
Here's what the SJVR does most often:

They keep the old milepost number from either ATSF or SP, and put on an incorrect street name, with no DOT and no phone number. This is what SJVR does the most.
That is another crossing from Bakersfield.
And for laughs, here's another one from Bakersfield:

Nothing on the case, or anywhere! There isn't even a DOT number here, and is marked as unknown on the webpage.