Where is the 505 area code in California?

In this article, we will find answer to your question ‘Where is the 505 area code in California?’.

Where is the 505 area code in California?

Discovery of Area Codes

Area codes were discovered in the 1940s by AT&T and Bell Laboratories, which became the North American Numbering Plan (NANP) in the United States and Canada in 1947.

In 1947, the North American area code system was established, dividing the continent into 86 numbering plan zones. In 1951, the concept was put into action. The state of New Jersey was the first to receive a telephone area code, which was 201. The goal was to make long-distance phone calls easier to dial directly. By the mid-1960s, the area code system, which had been adopted in bigger cities in the 1940s, had been fully deployed throughout the country.

A telephone numbering plan is a kind of a numbering system or a scheme used in a telecommunication company to allocate the phone numbers to telephony endpoints and subscriber phones if any. Telephone numbers are the addresses of telephone network participants that can be reached using a destination code routing system. Each administrative region of the public switched telephone network (PSTN) and private telephone networks have its telephone numbering plan. 

Geographic location often plays a factor in the sequence of numbers issued to each telephone user in public numbering systems. Many numbering plan administrators divide their service territory into geographic zones identified by a prefix, also known as an area code or city code, which is a group of numbers that form the most important portion of the dialling sequence to contact a telephone subscriber.

Area code 505 geographic location

The new telephone area code 505 covers New Mexico, in the United States of America. It was established in October 1947 and mainly served areas of New Mexico, in the city of Albuquerque with a population of 6,51,886 people. Also, it covers 15 counties of New Mexico which lies between the Mountain Time (MT).

Latitude and Longitude:  

Latitude of  45° 29’ 59.99” N 

Longitude of 123° 00’ 0.00” W. 

Major cities in area code 505 include


Albuquerque is New Mexico’s most populated city. It is also the county seat of Bernalillo County. The city has a chilly semi-arid climate. This is due to its location in the northern extreme of the Chihuahuan Desert, near the Colorado Plateau’s edge. The Sandia Mountains run along Albuquerque’s eastern border, while the Rio Grande runs through the city. 

Albuquerque’s economy is built on industrial output, and the city is also in the heart of the New Mexico Technology Corridor. The Indian Pueblo Cultural Center, the Sandia Peak Tramway, the Petroglyph National Monument, the National Museum of Nuclear Science and History, the Albuquerque Biological Park and the New Mexico Museum of Natural History and Science are some of the city’s most visited and an area of interest. 

Santa Fe: 

Santa Fe is the state capital and the county seat of Santa Fe County in New Mexico. It is the state’s fourth oldest and a  popular city in Mexico. The climate in Santa Fe is dry steppe, which means hot summers and cold, dry winters.

The tourist attraction accounts for a large economical value of Santa Fe’s. The Santa Fe Opera House, the New Mexico History Museum, the Loretto Chapel, the Museum of Indian Arts & Culture, the Museum of International Folk Art and the Santa Fe Botanical Garden are some of the most attractive and regarded as the highlights of the city.


Clovis is a part of the eastern region of Llano Estacado, under the county Curry. It is mainly an agricultural community lying on the border of Texas. The people living are thought to be the forefathers of most of the Americas’ indigenous cultures.

The place experiences a moderate,l type of climate with low humidity and strong winds. Summers are extremely hot, while winters are extremely cold.  

Rio Rancho

It is the third-largest city of Mexico under Sandoval County. It is located in

35°17’10” North, 106°40’14” West. It is located in the Albuquerque Basin, west of the Rio Grande, which forms a boundary in the city’s northeast corner. The city experiences an arid type of climate for its location near the Sandia Mountains.  


Under the county San Juan, founded in the year 1901, located on the Colorado Plateau, covering 34.95 sq mi, Farmington is one of the four Metropolitan Statistical Areas in New Mexico. It has a population of 44,372 people and experiences a semi-arid type of climate. 

Some of the counties located in New Mexico of Area code 505

  • Rio Arriba County
  • Torrance County
  • San Miguel County
  • McKinley County
  • Valencia County
  • Los Alamos County
  • Cibola County
  • Sandoval County
  • Santa Fe County
  • Taos County
  • San Juan County

Before October 20, 2021, telephone numbers with central office code 988 were assigned to area code 505. The National Suicide Prevention Lifeline authorised 988 as a calling code nationwide in 2020, causing a conflict for exchanges that allow seven-digit dialling. As a result, on October 24, 2021, this area code will be converted to ten-digit dialling.

A subscriber number is a unique identifier for a line that connects to client equipment. The first few digits of the subscriber number can be used to indicate the smaller geographical areas. 

They may indicate the network provider in mobile networks. When dialling inside the same region or nation, callers in that area or country may not need to supply the specific area prefixes. Devices that automatically dial phone numbers may provide the whole number, including area and access codes.

The continental United States began with around 78 numbering plan areas in 1947 and quickly expanded in the late 1990s and early 2000s. Overlay area codes were created to provide more phone numbers in regions where there was higher demand. There are also plans to add more area codes to provide relief to places with exhaust dates within the next four years. 


Therefore, in conclusion, an area code identifies a phone number’s geographic location in the United States. Currently, there are 320 area codes in the United States of America including overlays (NANP). The state of California has the most area codes (35), followed by Texas (27) and New York (19).

Where is the 505 area code in California?

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