Area code 000
Encyclopedia
Area code 000, while not a valid United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 area code, is actually an "outbound-only" area code. This code may show up as part of a number on a caller id
Caller ID
Caller ID , also called calling line identification or calling number identification or Calling Line Identification Presentation , is a telephone service, available in analog and digital phone systems and most Voice over Internet Protocol applications, that transmits a caller's number to...

 system when receiving telemarketer outbound calls or from VoIP services, such as Skype
Skype
Skype is a software application that allows users to make voice and video calls and chat over the Internet. Calls to other users within the Skype service are free, while calls to both traditional landline telephones and mobile phones can be made for a fee using a debit-based user account system...

 or Vonage
Vonage
Vonage is a publicly held commercial voice over IP network and SIP company that provides telephone service via a broadband connection. The company's name is a play on their motto "Voice-Over-Net-AGE"....

.
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK