Comcast Block Calls Extra Quality -

“This is Comcast’s Security Assurance Team. We have detected unusual activity on your home network. To avoid service interruption, press 1 immediately.”

He opened his laptop and pulled up a public SS7 monitoring tool—a hobbyist’s window into the phone network’s skeleton. He filtered by Clara’s prefix.

Twenty minutes later, Clara’s phone rang. Not a spoofed call. A real one. The caller ID read Comcast NOC.

“See?” Leo said. “The block is at the exchange. Your carrier thinks you’re ‘busy’ all the time. But you’re not. Someone told the network to lie.”

Comcast never apologized. But the next week, Clara noticed a new option in her account settings: Call Forwarding Verification Alert. She enabled it.

“There,” he said, pointing. “A redirect rule. Not at your phone. Not at Comcast’s consumer gateway. At the core routing level. This is carrier-grade fraud, Clara. Someone has a key to the kingdom.” Clara did something most people wouldn’t. She didn’t call Comcast’s 1-800 number—she knew that line was compromised. Instead, she drove to the local Comcast store, waited forty-five minutes in a plastic chair, and asked for the store manager, a woman named Denise.