UK area code 0151 (i.e., +44 151) is Liverpool.
In North America (USA, Canada, etc.), area code +1 512 is the area around Austin, Texas, USA. The 512-753 prefix serves San Marcos, Texas.
In North America (USA, Canada, etc.), telephone area code +1 737 is an overlay on area code +1 512, serving part of central Texas including Austin.
In North America (USA, Canada, etc.), area code 512 is an ordinary geographic area code for Austin, Texas, and surrounding areas. It is not toll-free. The toll-free codes in North America are 800, 888, 877, 866, 855, and 844, with 833 and 822 reserved for future toll-free use.
The area code 412 is a Pennsylvania telephone area code. The exact area is the Commonwealth of Pennsylvania which is located in Allegheny County in Pennsylvania.
There are many different cities that are served by the 512 area code. These cities include, Austin, Bertram, Kyle and Leander. One can find a complete list of the cities from area code websites or the 512 area code Wikipedia entry.
The country code and area code of Peqin, Albania is 355, (0)512.
The country code and area code of Innsbruck, Austria is 43, (0)512.
The country code and area code of Drachten, Netherlands is 31, (0)512.
US area code 512 (Austin, Texas) is in the Central Time Zone - 6 hours behind London, 1 hour behind New York.
The country code and area code of San Bernardino, Paraguay is 595, (0)512.
The country code and area code of Vara-Nossebro, Sweden is 46, (0)512.
512 is one of the area codes for the area surrounding Austin, Texas. Area codes in the US are not specific to cell phones or land lines.