Viacom has blocked website content for Cable ONE customers in an escalating dispute with the cable company over the cost of the programmer’s cable networks.

Cable ONE dropped 15 Viacom channels from its cable systems nationwide April 1 claiming Viacom’s contract renewal price was unreasonable. Subscribers found a way around the dispute by accessing Viacom streamed content online. This week, Viacom closed that loophole and blocked access to all streaming content for Cable ONE subscribers.

“Cable One has chosen to no longer carry Viacom programming and, as a result, it is no longer available to Cable One customers in any form,” Viacom said in a terse statement.

All 730,000 Cable ONE customers in 19 states found the Viacom networks replaced on the cable lineup with alternative programming from BBC America, Sprout, The Blaze, Hallmark Channel, National Geographic, Investigation Discovery, TV One and SundanceTV.

Cable ONE is used to playing hardball with programmers and dropped Time Warner-owned Turner Network programming from its systems for three weeks last fall over a similar dispute, now resolved.

There is no word about the current status of negotiations between Viacom and Cable ONE.