408-XXX-XXX Phone Numbers

Before 1959, California was served by only three area codes - 213, 415, and 916. However, the growing population and the advent of direct distance dialing created a need for more telephone lines, leading to the creation of area code 408. Over the years, this code underwent several divisions and overlays, eventually resulting in the addition of area code 669 in 2012, which now coexists with 408 as an overlay.

Geographical Coverage

Area code 408 is primarily located in the southern part of the San Francisco Bay Area, covering most of Santa Clara County and a small portion of Santa Cruz County. It spans from the southern border of San Jose to the northern edge of the Salinas Valley. Key urban centers and towns within this area include San Jose, Cupertino, Gilroy, Los Gatos, Milpitas, Morgan Hill, Santa Clara, Saratoga, and Sunnyvale.

Associated Zip Codes

The area code 408 covers a wide geographical area with numerous zip codes, which include:

• 95002 (Alviso)
• 95008 (Campbell)
• 95013 (Coyote)
• 95014 (Cupertino)
• 95020 (Gilroy)
• 95030 (Los Gatos)
• 95035 (Milpitas)
• 95037 (Morgan Hill)
• 95050 (Santa Clara)
• 95054 (Santa Clara)
• and many more within the city of San Jose, ranging from 95110 to 95129

Population Details

As of 2019, over 1.9 million people resided within the area code 408. San Jose, the major city in this area code, is home to more than a million residents, making it the third-largest city in California and the tenth-largest in the United States.

Industry and Economy

Area code 408 is a hotspot for innovation, hosting both tech giants and startups. Companies such as Apple Inc, Netflix, Cisco Systems, and Intel have their headquarters here, earning the region its nickname "Silicon Valley." This area significantly contributes to the nation's economy and technological advancements. Key industries in the 408 area code include research and development, advanced manufacturing, professional and technical services, and education and healthcare services.

Residents of area code 408 are at the heart of technological innovations, living in a region recognized globally for its influence and impact.

Reference Sources:

1. North American Numbering Plan Administration (NANPA)
2. United States Census Bureau
3. California Public Utilities Commission