- 11 September–The Human Toll
- World Trade Center Facts and Figures
- Status of WTC Technology Companies
11 September—The Human Toll
Totals of dead and missing in attacks, as of October 17, 2001:
New York City:
World Trade Center: 4613 missing; 3456 confirmed dead
- 80 nationalities represented in the dead and missing toll, according to U.S. Secretary of State Colin Powell
- The New York Fire Department lost 343 people in its 11 400-member force; one out of every 33 people on the force
Those on hijacked planes:
- American Flight 11: 92
- United Flight 175: 65
Washington, D.C.:
Pentagon: 189 killed:
- American Flight 77, which hit the Pentagon: 64 dead
- United Flight 93, believed to be bound for Washington: 44 killed in Pennsylvania crash
Sources: Associated Press, National Public Radio, Times of London, New York Times
World Trade Center–Facts and Figures
Consisted of seven buildings
Architects: Minoru Yamasaki & Associates; Emery Roth & Sons–for Port Authority of New York and New Jersey
Main plot occupied by five of the buildings: 293 m by 216 m (63 268 m2)
Construction:
917 466 cubic meters of earth excavated
181 436 960 kg of steel used
324 936 cubic meters of concrete used
3500 workers daily during peak periods of construction
43 600 windows–55 742 m2 of glass window area in the Twin Towers
Largest refrigeration plant in the world–54 431 088 kg of cooling capacity
110-m television mast atop 1 World Trade Center supported 10 main television antennas and a master FM antenna
1 World Trade Center — North Tower
- Built 1970
- Height: 417 m–110 floors
- Floor sizes (9—105) 4181—4645 m2
- Elevators: 97 passenger, 6 freight
2 World Trade Center–South Tower
- Built 1972
- Height: 415 m–110 floors
- Floor sizes (2—109 )4181—4645 m2
- Elevators: 97 passenger, 6 freightv Notable Comments:
Minoru Yamasaki, chief architect:
"World trade means world peace and consequently, the World Trade Center buildings…had a bigger purpose than just to provide room for tenants. The World Trade Center is a living symbol of man’s dedication to world peace."
Austin Tobin, the head of the Port Authority, who commissioned the Center:
"[The towers are] the first buildings of the twenty-first century."
Status of WTC Technology Companies
| Company | Tower | Floor | What Firm Does | Employees at WTC | Status of Employees and Business |
| America Bright Signs | North | 33 | Computer services | 3 | All escaped safely. Employees are working out of the French embassy in NYC. |
| AT&T | North | 51 | Telecom | 8 to 10 | Reports no damage to network; All employees escaped. |
| Baseline | South | 77-78 | Software | 175 | Four employees are still missing. |
| Broadview Networks | North | 53 | Telecom | 10 | All employees accounted for. |
| Channel 11 (WPIX) | North | 110 | Television | 1 | One technician monitoring the transmitter is missing. Channel is broadcasting by backup antenna at Empire State Building and via cable. |
| Channel 2 (WCBS) | North | 110 | Television | 2 | Two technicians at transmitter are missing. Channel is broadcasting from backup antenna on Empire State Building. |
| Channel 31 (WBIS) | North | 110 | Television | Unmanned technical station | All employees survived. |
| Channel 4 (WNBC) | North | 104 | Television | Unmanned technical station | All employees survived. |
| Channel 47 (WNJU) | North | 110 | Television | Unmanned technical station | All employees survived. |
| Channel 5 (WNYW) | North | 110 | Television | Unmanned technical station | All employees survived. |
| Communications Workers of America | N/A | N/A | Telecom | 216 | Known casualties included five Verizon workers (two of whom were at the Pentagon); one worker at each of the television networks, NBC and ABC; four Port Authority workers; one retired member who perished aboard an airliner used in the terrorist attack. 204 members remain unaccounted for. |
| Dahao USA | North | 46 | Software | 4 | All employees survived. |
| General Telecom | North | 83 | Telecom | 37 | Thirteen employees are missing. Company has moved to new offices on W. 22nd St. in Manhattan. |
| Genuity | North | 105 | Tech | 10 | Three technicians working on the 105th floor were last heard heading for the roof of the building. They are missing. |
| IQ Financial Systems | South | 83 | Software | 110 | All but four employees are accounted for and safe. Business will resume shortly. |
| Kanebo Information Systems Corp., U Computers | North | 46 | Computer services | 4 | Three employees and one temp escaped safely, but company cannot locate or contact them now. |
| Martin progressive L.L.C. Computer | North | 77 | Computer services | 80 | All safe. |
| Meganet Management Consulting | North | 46 | Computing | All employees evacuated safely. | |
| MRV Communications | N/A | N/A | Networking | N/A | Edmund Glazer, 41, CFO, was killed in one of the hijacked planes. |
| Network Plus | North | 81 | Telecom | 51 | All safe. |
| Quantum/ATL | North | 78 | Data Storage | 4 | All employees are safe. Business is running with employees working remotely. |
| Raytheon | Four employees, passengers on flights that crashed into the World Trade Center and Pentagon, died. | ||||
| SunGard | South | 58 | e-Commerce | 8 | All WTC workers are safe. Of about 20 other employees visiting clients, three are missing. Supporting customers from sites in Chicago and on the West Coast. |
| The Beast.com | North | 80 | Computer services | All employees are reported safe. | |
| Thermo Electron | North | 85 | Biomedical Devices | 9 | Three workers were on site at time of attack. All escaped |
| Tianli | Electrical Machinery | Could not be reached. | |||
| Trading Technologies | North | 86 | Software | 7 | All seven employees are safe. |
| Unisys | N/A | N/A | Computer services | 150 | All service personnel in WTC accounted for and safe. |
| Verizon Communications | South | 9-12 | Telecom | 500 | Six employees are missing. Collapse sent steel beams crashing through a nearby Verizon Facility, cause outages of some 200,000 telephone lines. |