In the North American telephone system, an area code is a three-digit code delineating a "toll" area in the United States, Canada, and Mexico. Area codes are distributed according to the North American Number Plan (NANP). The area code is also referred to as a Number Plan Area or NPA.

This was last updated in April 2005
Posted by: Margaret Rouse

Related Terms

Definitions

  • Fibre Channel Arbitrated Loop (FC-AL)

    - A Fibre Channel Arbitrated Loop (FC-AL) is a high-speed Fibre Channel (FC) topology that can connect up to 126 ports on one controller using a one-way loop or hub design. (SearchStorage.com)

  • colocation (colo)

    - A colocation (colo) is a data center facility in which a business can rent space for servers and other computing hardware. Typically, a colo provides the building, cooling, power, bandwidth and phy... (SearchSOA.com)

  • jumbo frames

    - A jumbo frame is an Ethernet frame with a payload greater than the standard maximum transmission unit (MTU) of 1,500 bytes.  (SearchNetworking.com)

Glossaries

  • Circuit switched services equipment and providers

    - Terms related to circuit switched services equipment and providers, including dedicated communications channel definitions and words and phrases about telecommunications.

  • Internet applications

    - This WhatIs.com glossary contains terms related to Internet applications, including definitions about Software as a Service (SaaS) delivery models and words and phrases about web sites, e-commerce ...

Ask a Question. Find an Answer.Powered by ITKnowledgeExchange.com

Ask An IT Question

Get answers from your peers on your most technical challenges

Ask Question

Tech TalkComment

Share
Comments

    Results

    Contribute to the conversation

    All fields are required. Comments will appear at the bottom of the article.