After 10:00 a.m. September 11, 2001: Cell Phones Not Working in New York City

Throughout the day of 9/11 and after, members of the public in New York City experience significant communications problems, particularly with cell phones. “In the aftermath [of the attacks], and for several days afterwards, cellular phone services were either not working or were severely overloaded.” [SatNews, 10/19/2001] As Time magazine reports, “Lines formed, at least 20 people long, at all pay phones, because cell phones were not working.” [Time, 9/14/2001] (Reportedly, though, the 911 system is not disrupted.) Later accounts will suggest that an increased volume of phone calls being made in response to the attacks may have overloaded networks. Within minutes of the first attack, according to the New York Times, there were “tens of millions of [phone] calls—many from worried relatives and friends—that threatened to clog the system.” [New York Times, 9/20/2001] The call volume of Verizon Communications, which has its main regional switching station across the street from the World Trade Center, reaches twice its normal daily rate of 115 million calls in New York City. “And although it remained operational, the wireless network experienced massive congestion that prevented most calls from getting through. During the peak of the chaos, Verizon experienced nearly 100 percent more traffic than normal on its nationwide wireless network.” [Verton, 2003, pp. 148] Some of the communications problems in the New York area are later attributed to physical damage to the infrastructure. A report by the Mineta Transportation Institute will summarize, “The collapse of the World Trade Center towers knocked out Verizon’s switching center in Lower Manhattan and severely damaged the infrastructure for cellular telephones. Telephone communications for NYPD Command and Control was also destroyed in the attack. As a consequence, cell phone service was subsequently overloaded. NYC Transit lost a key portion of its fiber-optic network in one tunnel.” [Jenkins and Edwards-Winslow, 9/2003, pp. 33 ] Similar communication problems are also experienced around Washington, DC, and some top government officials are affected (see (After 8:55 a.m.) September 11, 2001). According to one government official, the nation was “deaf, dumb, and blind” for much of the day. [Verton, 2003, pp. 151]