The last number that Dialed in would probably be the Japanese guy who left a message and then kidnapped her.
"Syndrome"
Thomas Hoover
The next Alexa Hampton lived in Syracuse, with area code 315. He was still shook up as he Dialed the number.
"Syndrome"
Thomas Hoover
Colonel Spaulding picked up the phone and Dialed a number.
"The Foreign Hand Tie"
Gordon Randall Garrett