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Area code 925 is a telephone area code in the North American Numbering Plan for a northern part of the U.S. state of California. It was created in an area code split of area code 510 in 1998. The numbering plan area comprises the inland portions of the East Bay counties of Alameda and Contra Costa .
- List of North American Numbering Plan area codes
This is a list of North American telephone area codes in...
- List of North American Numbering Plan area codes
List of North American Numbering Plan area codes - Wikipedia. Contents. hide. (Top) Area codes in numerical order. 200–299. 300–399. 400–499. 500–599. 600–699. 700–799. 800–899. 900–999. Area codes by country, state, province, and regions. United States. Canada. Caribbean and Atlantic islands. U.S. Pacific territories. Non-geographic area codes.
CodeTerritory Or UseDate200not in use; available for non-geographic ...easily recognizable code (ERC)New Jersey ( Bergen County and Hudson ...19471947Southwestern Connecticut ( Bridgeport, ...1947This is a list of North American telephone area codes in effect for the North American Numbering Plan (NANP). The area to which an area code is officially assigned is known as a Numbering Plan Area (NPA). An area code is part of a telephone number in the United States, Canada, and the Caribbean.
Area codes in Germany (German: Vorwahl) have two to five digits. In addition, the prefix digit 0 must be dialed when calling from within Germany, and must be omitted when calling from abroad. When calling via fixed networks within the same area, the area code is not required.
- Telephone Number Structure
- International Numbering Plan
- Private Numbering Plan
- Numbering Plan Indicator
- Subscriber Dialing Procedures
- See Also
- External Links
National or regional telecommunication administrations that are members of the International Telecommunication Union (ITU) use national telephone numbering plans that conform to international standard E.164. E.164 specifies that a telephone number consist of a country code and a national telephone number. National telephone numbers are defined by n...
The E.164 standard of the International Telecommunication Union is an international numbering plan and establishes a country calling code (country code) for each member organization. Country codes are prefixes to national telephone numbers that denote call routing to the network of a subordinate number plan administration, typically a country, or g...
Like a public telecommunications network, a private telephone network in an enterprise or within an organizational campus may implement a private numbering plan for the installed base of telephones for internal communication. Such networks operate a private switching system or a private branch exchange (PBX) within the network. The internal numbers...
Signaling in telecommunication networks is specific to the technology in use for each link. During signaling, it is common that additional information is passed between switching systems that is not represented in telephone numbers, which serve only as network addresses of endpoints. One such information element is the numbering plan indicator (NPI...
While a telephone numbering plan specifies the digit sequence assigned to each telephone or wire line, establishing the network addresses needed for routing calls, numbering plan administrators may define certain dialing procedures for placing calls. This may include the dialing of additional prefixes necessary for administrative or technical reaso...
The state of California was divided into three numbering plan areas (NPAs) with distinct area codes: 213, 415, and 916, for the southern, central, and northern parts of the state, respectively. [1] . As of July 2023, California has 38 active area codes.
925 is an area code located in the state of California, US. The largest city it serves is Concord. Location, time zone and map of the 925 area code. Local time. 3:23:25 AM, Saturday 25, May 2024 PDT. Time difference to GMT/UTC. Daylight Saving Time 2024 (Summer Time) DST starts on Sunday 10 March 2024, 02:00.
