What does an area code page show?

It shows the broader region, available prefixes, and carrier or city clues linked to that area code.

How does an area code help reverse phone lookup?

It provides a geographic starting point before you investigate a specific full number.

Home / Area Codes / 408

Area Code Directory

Area Code 408

Browse available prefixes, locations, carriers, and quick path links into deeper phone number pages for this area code. Area-code research is one of the most important parts of reverse phone lookup because it gives visitors a geographic starting point before they inspect a full number.

Back to Area Codes Recent Reports

200Prefixes Listed

CaliforniaLocation

United StatesCountry

408Area Code

Area Code Overview

Area Code408

Primary LocationCalifornia

CountryUnited States

Prefix Coverage200 listed prefixes

Prefixes in 408

408-200

San Jose

U.s. Telepacific Corp. - Ca

Cellco Partnership Dba Verizon Wireless - Ca

Wireless

408-203

Santa Clara

New Cingular Wireless Pcs Llc

Wireless

408-204

Sunnyvale

Cellco Partnership Dba Verizon Wireless - Ca

Wireless

408-205

Sunnyvale

Cellco Partnership Dba Verizon Wireless - Ca

Wireless

408-206

Sunnyvale

Cellco Partnership Dba Verizon Wireless - Ca

Wireless

408-207

Oakland

U.s. Telepacific Corp. - Ca

Landline

408-208

Oakland

American Messaging Services Llc

Landline

408-209

Sunnyvale

Cellco Partnership Dba Verizon Wireless - Ca

Brooks Fiber Communications Of California - Ca

Landline

408-213

San Francisco

Allegiance Telecom Inc. - Ca

Landline

408-214

San Francisco

Bandwidth.com Clec Llc - Ca

Landline

408-215

San Jose

Mci Worldcom Communications Inc. Ca

Landline

408-216

San Jose

Mci Worldcom Communications Inc. Ca

Landline

408-217

San Francisco

Level 3 Communications Llc - Ca

Landline

408-218

Santa Clara

New Cingular Wireless Pcs Llc

Wireless

408-219

Santa Clara

New Cingular Wireless Pcs Llc

Wireless

408-220

Sunnyvale

Brooks Fiber Communications Of California - Ca

Landline

408-221

Santa Clara

New Cingular Wireless Pcs Llc

Wireless

408-222

Sunnyvale

Brooks Fiber Communications Of California - Ca

Usa Mobility Wireless Inc.

Usa Mobility Wireless Inc.

Wireless

408-234

Sunnyvale

Cellco Partnership Dba Verizon Wireless - Ca

Usa Mobility Wireless Inc.

U.s. Telepacific Corp. - Ca

New Cingular Wireless Pcs Llc

New Cingular Wireless Pcs Llc

Mci Worldcom Communications Inc. Ca

Bandwidth.com Clec Llc - Ca

Comcast Phone Of California Llc - Ca

Landline

408-301

Livermore

Usa Mobility Wireless Inc.

Wireless

408-302

Oakland

American Messaging Services Llc

Landline

408-303

Oakland

American Messaging Services Llc

Landline

408-304

Oakland

American Messaging Services Llc

Landline

408-305

Oakland

Usa Mobility Wireless Inc.

Wireless

408-306

Santa Clara

New Cingular Wireless Pcs Llc

Wireless

408-307

Santa Clara

New Cingular Wireless Pcs Llc

Wireless

408-308

Livermore

Usa Mobility Wireless Inc.

Wireless

408-309

Sunnyvale

Cellco Partnership Dba Verizon Wireless - Ca

Cellco Partnership Dba Verizon Wireless - Ca

Wireless

408-314

Sunnyvale

Cellco Partnership Dba Verizon Wireless - Ca

Wireless

408-315

Sunnyvale

Cellco Partnership Dba Verizon Wireless - Ca

Wireless

408-316

Sunnyvale

Cellco Partnership Dba Verizon Wireless - Ca

Wireless

408-317

Oakland

Pac - West Telecomm Inc.

Landline

408-318

Sunnyvale

Cellco Partnership Dba Verizon Wireless - Ca

Wireless

408-319

Salinas

Cellco Partnership Dba Verizon Wireless - Ca

Wireless

408-320

San Francisco

Sbc Internet Services Inc.

Usa Mobility Wireless Inc.

Level 3 Communications Llc - Ca

New Cingular Wireless Pcs Llc

Wireless

408-333

San Jose

Broadwing Communications Llc - Ca

Landline

408-334

Sunnyvale

New Cingular Wireless Pcs Llc

Wireless

408-335

San Francisco

Verizon California Inc.-ca (gte)

Charter Fiberlink Ca-cco Llc - Ca

Mcimetro Access Transmission Services Llc

Brooks Fiber Communications Of California - Ca

New Cingular Wireless Pcs Llc

Pac - West Telecomm Inc.

Verizon California Inc.-ca (gte)

Landline

408-354

Los Gatos

Verizon California Inc.-ca (gte)

Verizon California Inc.-ca (gte)

Landline

408-357

Los Gatos

Verizon California Inc.-ca (gte)

Landline

408-358

Los Gatos

Verizon California Inc.-ca (gte)

Brooks Fiber Communications Of California - Ca

Landline

408-368

Santa Clara

New Cingular Wireless Pcs Llc

Ymax Communications Corp. - Ca

Mpower Communications Corp - Ca

Landline

408-381

Oakland

Usa Mobility Wireless Inc.

Mpower Communications Corp - Ca

Landline

408-385

San Jose

Mpower Communications Corp - Ca

Landline

408-386

Santa Clara

New Cingular Wireless Pcs Llc

Usa Mobility Wireless Inc.

Wireless

408-389

San Francisco

Level 3 Communications Llc - Ca

New Cingular Wireless Pcs Llc

Verizon California Inc.-ca (gte)

Usa Mobility Wireless Inc.

Wireless

408-398

Santa Clara

New Cingular Wireless Pcs Llc

Wireless

408-399

Los Gatos

Verizon California Inc.-ca (gte)

Top prefixes in this area code

408-200→408-201→408-202→408-203→408-204→408-205→408-206→408-207→

Why area code pages matter in reverse phone lookup

Area code pages help visitors understand the wider calling region connected to a number. While a full reverse phone lookup page focuses on one specific caller, an area code page shows the bigger picture by grouping prefixes, cities, and carrier patterns under the same first three digits. This makes it easier to spot whether a number appears local, regional, or part of a service area the visitor already recognizes.

For phone directory websites, area code pages also improve browsing. A user can start with a missed call, discover the number's first three digits, and then move into the related area code to see supporting location data and a list of active prefixes. That layered navigation creates a better research experience and gives visitors more confidence when they continue into a specific number page.