Where is Area Code 623?
Area code 623 primarily covers the northwestern regions of the Greater Phoenix area in Arizona. It spans various municipalities and unincorporated areas that have grown significantly in recent decades. This code was introduced to accommodate the increasing demand for telephone numbers across Maricopa County. Key locations served by this area code include:
- Glendale
- Peoria
- Surprise
- Sun City
- El Mirage
- Anthem
For official information regarding address validation or zone boundaries, residents may contact the Arizona Corporation Commission, located at 1200 W Washington St, Phoenix, AZ 85007. Further details may also be found through the Arizona Corporation Commission, which provides extensive information on telephone service guidelines within the state.
Local government offices within these municipalities remain responsible for providing community-specific resources:
- Glendale City Hall: 5850 W Glendale Ave, Glendale, AZ 85301
- Peoria City Hall: 8401 W Monroe St, Peoria, AZ 85345
- Surprise City Hall: 16000 N Civic Center Plaza, Surprise, AZ 85374
What Time Zone Is 623 Area Code in the USA?
This area code falls under the Mountain Standard Time (MST) zone. Arizona does not generally observe Daylight Saving Time (DST) with the exception of the Navajo Nation in the northern part of the state. Consequently, most communities in area code 623 serve residents and businesses that remain on MST throughout the year, ensuring uniformity of operating hours and schedules.
For precise guidelines on time zone regulations, refer to the National Institute of Standards and Technology’s official resources which provide general timekeeping and DST information within the United States.
History of the 623 Area Code
Area code 623 was officially introduced in the late 1990s after a rapid increase in residential and commercial development prompted the need for additional telephone numbers. Previously, the entire Phoenix metropolitan area was served by a single area code (602). When the population began to surge, the original area code underwent a split to introduce 623, and later, an additional overlay code (480) was introduced to the eastern suburbs. These actions were coordinated in conjunction with the Federal Communications Commission’s official site, located at 45 L Street NE, Washington, DC 20554, which oversees numbering policies nationwide.
Key milestones in the creation of area code 623 include:
- Initial split from 602 in 1999.
- Rapid expansion of the northwest Phoenix suburbs driving the demand for new numbers.
- Continued monitoring and possible expansion by the Arizona Corporation Commission and the FCC to accommodate growing telecommunication needs.
These structural changes were undertaken to support the region’s economic growth and ensure consistent availability of telephone numbers for households, businesses, and government offices.
How Many People Use the 623 Area Code?
Based on demographic studies from the U.S. Census Bureau, located at 4600 Silver Hill Road, Washington, D.C. 20233, it is estimated that area code 623 services well over one million residents, as it encompasses several of the fastest-growing areas in Arizona. While official capacity numbers can fluctuate, local telephone service providers frequently monitor usage to maintain sufficient availability of new numbers.
Several contributing factors to these numbers include:
- Continuous influx of retirees in Sun City and Surprise.
- Expanding commercial presence in Glendale and Peoria.
- Steady population growth in the Phoenix metropolitan corridor.
Is the 623 Area Code Toll-Free?
Area code 623 is not affiliated with toll-free telephone services; it is a geographic code established to serve specific regions within Arizona. When dialing local numbers within this area code, standard local calling rates apply. Any interstate long-distance charges remain subject to individual telephone carrier plans.
Residents are advised to verify potential charges with their service providers, especially when making calls outside the assigned geographic regions. Further clarification on toll-free regulations can be found through the official site of the Federal Communications Commission, which oversees all interstate and international communications in the United States.