US Phone Area Codes Chart

323 Area Code Explained

Numbering Plan Area (NPA) The 323 area code is part of a larger geographic region known as a Numbering Plan Area (NPA). This NPA includes both the 213 and 323 area codes, and covers a large portion of the city of Los Angeles, as well as several surrounding communities. The NPA is managed by the North American Numbering Plan Administration (NANPA), which is responsible for assigning and managing area codes in North America.

Overlay Code The 323 area code is an overlay code, which means that it was added to the existing 213 area code when the demand for phone numbers exceeded the available supply. As a result, both 213 and 323 area codes now serve the same geographic area. This required new dialing rules, as callers now need to dial the area code even when making local calls within the same area. This is known as mandatory 10-digit dialing.

NANPA Assignment The NANPA is responsible for assigning area codes in North America. When an area code is assigned, it is given a specific geographic region, and telephone numbers within that region are assigned the corresponding code as a prefix. The NANPA takes into account several factors when assigning area codes, including population growth, geographic size, and demand for phone numbers.

Number Exhaustion The addition of the 323 area code as an overlay to the existing 213 area code was necessary due to the increasing demand for phone numbers in the region. This is a common issue known as number exhaustion, which occurs when the available supply of phone numbers within an area code is depleted. When this happens, an overlay code can be added to the region to provide additional phone numbers.

Dialing Sequence To call a phone number with a 323 area code from within the United States, the following dialing sequence is used:

  1. Dial the area code, which is 323 in this case.
  2. Dial the seven-digit phone number.

For international callers, the full dialing sequence for a call to a phone number with a 323 area code would be: international dialing prefix + 1 + 323 + seven-digit phone number.

Conclusion Overall, the 323 area code is an important component of the North American Numbering Plan and is used to designate a portion of the Los Angeles metropolitan area. Its technical details include the fact that it is an overlay code, is part of a larger numbering plan area, and requires callers to use mandatory 10-digit dialing. These technical details are important for understanding how the 323 area code works and how it facilitates telephone communication in the Los Angeles region and beyond.

Area codes are important components of the North American Numbering Plan (NANP) used in the United States, Canada, and several other countries. These codes are used to divide geographic regions into unique areas for telephone communication. This article focuses on the 323 area code, its history, technical details, and how it works in the United States.

Overview of the 323 Area Code The 323 area code is a three-digit code assigned to a portion of the Los Angeles metropolitan area, specifically covering the east and northeast regions of the city. The code was first introduced in 1998 as an overlay to the 213 area code, which was the original code for Los Angeles. The 323 area code covers several communities, including Boyle Heights, East Los Angeles, Montebello, and Huntington Park.

Technical Details of the 323 Area Code The NANP is responsible for assigning and managing area codes in North America. When an area code is created, it is given a geographic area, and telephone numbers within that area are assigned the corresponding code as a prefix. In the case of the 323 area code, it covers a portion of the Los Angeles metropolitan area.

One important technical aspect of the 323 area code is that it is an overlay code. This means that it was added to the existing 213 area code when the demand for phone numbers exceeded the available supply. As a result, both 213 and 323 area codes now serve the same geographic area. This required new dialing rules, as callers now need to dial the area code even when making local calls within the same area.

Another technical detail of the 323 area code is that it is part of a larger geographic region known as Numbering Plan Area 213/323. This region includes both the 213 and 323 area codes, and it covers a large portion of the city of Los Angeles, as well as several surrounding communities.

How the 323 Area Code Works in the United States To call a phone number with a 323 area code from within the United States, the following dialing sequence is used:

  1. Dial the area code, which is 323 in this case.
  2. Dial the seven-digit phone number.

So, for example, if you were calling a phone number with the number (323) 555-1234, you would dial 323-555-1234.

It is worth noting that the dialing sequence changed when the 323 area code was added as an overlay to the existing 213 area code. Previously, callers within the same area code could dial the seven-digit phone number without the area code. However, with the addition of the overlay code, callers now need to dial the area code even when making local calls within the same area.

International callers wishing to call a phone number with a 323 area code would need to include the appropriate international dialing prefix for their country, followed by the country code for the United States, which is 1. The full dialing sequence for an international call to a phone number with a 323 area code would therefore be: international dialing prefix + 1 + 323 + seven-digit phone number.

Conclusion The 323 area code is an important component of the North American Numbering Plan and is used to designate a portion of the Los Angeles metropolitan area. It was introduced as an overlay to the existing 213 area code in response to the increasing demand for phone numbers in the region. The technical details of the 323 area code include the fact that it is part of a larger numbering plan area, and that it requires callers to dial the area code even when making local calls within the same area. Overall, the 323 area code plays an important role in facilitating telephone communication in the Los Angeles region and beyond

The North American Numbering Plan Administration (NANPA) is responsible for managing the 323 area code, as well as all other area codes in North America. When the demand for phone numbers in the Los Angeles area exceeded the available supply, the NANPA added the 323 area code as an overlay to the existing 213 area code. This means that both the 213 and 323 area codes now serve the same geographic region.

The 323 area code covers an area of approximately 50 square miles, with a population of over 1.5 million people. It is one of the most densely populated areas in the United States, with a population density of over 30,000 people per square mile. The area code is located in the Pacific Time Zone and observes Daylight Saving Time.

To call a phone number with a 323 area code from within the United States, the following dialing sequence is used:

  1. Dial the area code, which is 323.
  2. Dial the seven-digit phone number.

For international callers, the full dialing sequence for a call to a phone number with a 323 area code would be: international dialing prefix + 1 + 323 + seven-digit phone number.

In summary, the 323 area code is located in the state of California and serves a densely populated region that includes a large portion of the city of Los Angeles. It is managed by the NANPA and was added as an overlay to the existing 213 area code to meet the increasing demand for phone numbers in the region.

How area Codes works in US

In the United States, telephone numbers are divided into three parts: the area code, the prefix (or exchange), and the line number. In this article, we will be discussing the area code and how it works in the US.

  1. What is an area code? An area code is a three-digit code that is used to identify a specific geographic area within the United States. When making a phone call, the area code is dialed before the phone number. The area code is used to route the call to the correct geographic location.
  2. History of area codes: The first area codes were introduced in 1947. At that time, there were only 86 area codes, and they were used primarily in large cities. As the population grew and telephone usage increased, more area codes were added. In 1995, the North American Numbering Plan Administration (NANPA) was created to manage the assignment of area codes in the US, Canada, and other countries that use the North American numbering plan.
  3. How are area codes assigned? Area codes are assigned based on population and geography. When a new area code is needed, NANPA assigns it to a specific geographic area. The goal is to minimize the number of times a person needs to dial long-distance to make a call within their state or region. Area codes are also designed to be easily recognizable and memorable.
  4. Area code overlays: In some areas, there are more than one area code assigned to a geographic area. In these cases, an area code overlay is used. An overlay is an additional area code that is added to the same geographic area as an existing area code. For example, the 212 area code in New York City was overlaid with the 646 area code. This means that people living in the same area could have phone numbers with either the 212 or the 646 area code.
  5. Porting phone numbers: When someone moves from one geographic area to another, they may be able to keep their existing phone number. This process is called porting. Porting is possible because area codes are not tied to a specific location or service provider. Instead, they are assigned to a geographic area and can be used by any service provider within that area.
  6. Area code scams: Scammers sometimes use area codes to trick people into answering their phone calls. For example, a scammer might use a phone number with the same area code as the person they are calling to make it seem like the call is coming from a local number. It is important to be aware of these types of scams and to be cautious when answering calls from unfamiliar numbers.

Conclusion: In conclusion, area codes play a crucial role in the US telephone system. They are used to identify geographic areas and route calls to the correct location. Area codes are assigned based on population and geography, and new area codes are added as needed to accommodate growth and improve call routing. Area code overlays allow multiple area codes to be used within the same geographic area, and porting makes it possible for people to keep their phone numbers when they move to a new location. While area codes are a useful tool for making phone calls, it is important to be aware of area code scams and to be cautious when answering calls from unfamiliar numbers.