02/22/2005 AT 05:00 PM EST
Just days after Paris Hilton's cell phone data was allegedly hacked and leaked onto the Internet, the hotel heiress's celebrity friends are being bombarded with phone calls from strangers around the world – and stars such as Ashlee Simpson are scurrying to change their phone numbers.
Meanwhile, phone company T-Mobile is looking into the Great Paris Phone Leak of 2005 after someone accessed the heiress's account and posted more than 500 phone numbers and notes from the Simple Life star's Sidekick II personal device on the Internet.
"T-Mobile is investigating the reported disclosure of Paris Hilton's information," reads a statement from the company, which has aired ads featuring Hilton as a pitchwoman for their Sidekick II. "T-Mobile's computer forensics and security team is actively investigating to determine how Ms. Hilton's information was obtained. This includes the possibility that someone had access to one of Ms. Hilton's devices and/or knew her account password."
It's not known whether all the names and numbers are authentic. But celebrities such as Lindsay Lohan, Ashlee Simpson, Entourage star Kevin Connolly and Victoria Gotti have been deluged with calls from people around the world, the New York Post reports. Some have already changed their numbers since the address book was leaked, while others (including Fred Durst of Limp Bizkit) reportedly had full voicemail inboxes.
Rapper Lil' Jon, who also appeared in Paris's digital black book, made a personal plea to fans during Monday's MTV TRL Awards, when he picked up the "Roc the Mic" Award.
"Stop calling on my cell phone! I know y'all got the number off the Internet through Paris (Hilton). Stop calling me," he said.