The house has ATT Uverse internet/tv/landline. The white cable at the top, spliced to the blue and white wires, is the data cable going up to the where the ATT modem is. I’m trying to see if I can set up a Spectrum Modem that only has coax connections without disconnecting the ATT connection.

Is it possible to reconnect the coax connections without disconnecting the ATT to have two separate internet connections in the house?