Last year we saw big rate increases in AT&T Metro Ethernet. This month, AT&T raises its cellular data rates but also changed the data cap. They also added about 25 different data plans "to fit your needs".
Windtream raised the prices on its DSL. (see here.)
That likely means you can raise your rates a little too! Depending how you do it, you will increase revenue and margin and only lose a few customers. However, the revenue increase will more than make up for the few customers you lose.