Transport and Communication
Roadways
According to the 2012 CIA Factbook, the US has over 4 million miles (6,586,610 km) of roads, making it the largest road network in the world. The country has a National Highway System (NHS), which consists of roadways that are important for the economy, defense, and mobility of the nation. The Eisenhower Interstate System, the Strategic Highway Network, the major Strategic Highway Network Connectors, and the Intermodal Connectors are the main types of highways that together form the NHS.
* For more see our
USA roadways map.
Railroads
As of 2014, the US has the largest railway network in the world with over 180,000 miles (293,564 km) of railway tracks. Some of the busiest passenger railway stations in the country are Penn Station, New York City; Union Station, Washington; 30th Street Station, Philadelphia; Union Station, Chicago; Union Station, Los Angeles; South Station, Boston; Sacramento Valley Station, Sacramento; Penn Station, Baltimore; Albany-Rensselaer Station, Rensselaer and Union Station, New Haven.
* For more see our
USA railways map.
Airways
With a total of 19,453 airports (2013 estimate), the U.S.A. has the maximum number of airports in the world. Some of the major US airports based on the volume of passengers are Hartsfield-Jackson Atlanta International Airport, Atlanta; Chicago O'Hare Airport, Chicago; Los Angeles International Airport, Los Angeles; Dallas/Fort Worth International Airport, Dallas; Denver International Airport, Denver; John F. Kennedy International Airport, New York; George Bush Intercontinental Airport, Houston; McCarran International Airport, Las Vegas; San Francisco International Airport, San Francisco and Sky Harbor International Airport, Phoenix.
Waterways
With a vast coastline touching two major oceans, the U.S.A. has several passenger and cargo ports. Important ports of the country are Miami Port, Port Everglades, and Port Canaveral in Florida; Seattle Port in Washington; Port of Long Beach in California; Port of Baton Rouge in Louisiana; Port of Corpus Christi in Texas; Port of Hampton Roads in Virginia and North Carolina; Port of Houston in Texas; Port of Los Angeles in California and also the Port of New York and New Jersey.
U.S.A. has two major oil terminals - Louisiana Offshore Oil Port (LOOP) terminal in the Gulf of Mexico, off the coast of Louisiana and Haymark terminal also in Louisiana.
Satellite
As of July 2014, the U.S.A. has a total of 512 operating satellites. Of these, 18 are civil satellites, 214 are commercial satellites, 121 are government satellites, and 159 are military satellites.
Telephone/ Mobile network
The international country code for U.S.A. is 1. As of 2013, there were 305,742,000 mobile cellular connections and 135,127,000 fixed-telephone connections in the country.
Internet
The internet country code for U.S.A. is '.us' and as per the 2013 data there were 91,342,000 fixed broadband connections in the country.
Settelment
As per the latest census, the 10 most populated cities of the U.S.A. are New York, New York State; Los Angeles, California; Chicago, Illinois; Houston, Texas; Philadelphia, Pennsylvania; Phoenix, Arizona; San Antonio, Texas; San Diego, California; Dallas, Texas and San Jose, California.