| Date - Field | United States - Telephones - main lines in use |
2012 January Telephones - main lines in use | 151 million (2010) |
2011 January Telephones - main lines in use | 141 million (2009) |
2010 January Telephones - main lines in use | 150 million (2008) |
2009 January Telephones - main lines in use | 163.2 million (2007) |
2008 January Telephones - main lines in use | 172 million (2006) |
2007 January Telephones - main lines in use | 268 million (2003) |
2006 January Telephones - main lines in use | 181,599,900 (2003) |
2005 January Telephones - main lines in use | 181,599,900 (2003) |
2004 January Telephones - main lines in use | 186,232,300 (2002) |
2003 January Telephones - main lines in use | 194 million (1997) |
2002 January Telephones - main lines in use | 194 million (1997) |
2001 January Telephones - main lines in use | 194 million (1997) |
2000 January Telephones - main lines in use | 178 million (1999) |