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 / 415

Area Code Directory

Area Code 415

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

415Area Code

Area Code Overview

Area Code415

Primary LocationCalifornia

CountryUnited States

Prefix Coverage200 listed prefixes

Prefixes in 415

415-200

San Francisco

O1 Communications Inc. - Ca

Landline

415-201

Hayward

American Messaging (am) Inc.

New Cingular Wireless Pcs Llc

Wireless

415-204

Hayward

American Messaging (am) Inc.

Landline

415-205

San Francisco

New Cingular Wireless Pcs Llc

Usa Mobility Wireless Inc.

Wireless

415-208

Livermore

Usa Mobility Wireless Inc.

Wireless

415-209

Novato

Verizon California Inc.-ca (gte)

Landline

415-210

Livermore

Usa Mobility Wireless Inc.

Wireless

415-213

San Jose

U.s. Telepacific Corp. - Ca

Landline

415-215

San Francisco

New Cingular Wireless Pcs Llc

Wireless

415-216

Oakland

Teleport Communications Group - San Francisco

New Cingular Wireless Pcs Llc

Wireless

415-219

Livermore

Usa Mobility Wireless Inc.

Wireless

415-220

Livermore

Usa Mobility Wireless Inc.

Pac - West Telecomm Inc.

Landline

415-224

Livermore

Usa Mobility Wireless Inc.

Global Crossing Local Services Inc.-ca

Mcimetro Access Transmission Services Llc

Landline

415-229

San Francisco

Teleport Communications Group - San Francisco

Landline

415-230

San Francisco

Broadvox-clec Llc - Ca

American Messaging (am) Inc.

Landline

415-233

San Francisco

Level 3 Communications Llc - Ca

Landline

415-234

San Francisco

O1 Communications Inc. - Ca

Teleport Communications Group - San Francisco

Landline

415-237

San Francisco

Level 3 Communications Llc - Ca

Landline

415-238

Fairfield

Cellco Partnership Dba Verizon Wireless - Ca

Level 3 Communications Llc - Ca

New Cingular Wireless Pcs Llc

Wireless

415-245

Livermore

Usa Mobility Wireless Inc.

Wireless

415-246

Concord

New Cingular Wireless Pcs Llc

New Cingular Wireless Pcs Llc

Wireless

415-251

San Francisco

Ymax Communications Corp. - Ca

Usa Mobility Wireless Inc.

Wireless

415-254

San Francisco

New Cingular Wireless Pcs Llc

New Cingular Wireless Pcs Llc

Cellco Partnership Dba Verizon Wireless - Ca

Wireless

415-265

Fairfield

Cellco Partnership Dba Verizon Wireless - Ca

Wireless

415-266

San Jose

U.s. Telepacific Corp. - Ca

Teleport Communications Group - San Francisco

Landline

415-269

San Francisco

New Cingular Wireless Pcs Llc

Wireless

415-270

Livermore

Usa Mobility Wireless Inc.

Wireless

415-271

Fairfield

Cellco Partnership Dba Verizon Wireless - Ca

Wireless

415-272

San Francisco

New Cingular Wireless Pcs Llc

Mcimetro Access Transmission Services Llc

Landline

415-276

San Francisco

Teleport Communications Group - San Francisco

New Cingular Wireless Pcs Llc

Wireless

415-280

Livermore

Usa Mobility Wireless Inc.

Cf Communications Llc Dba Telekenex - Ca

New Cingular Wireless Pcs Llc

Teleport Communications Group - San Francisco

Landline

415-294

San Francisco

Global Crossing Local Services Inc.-ca

New Cingular Wireless Pcs Llc

Wireless

415-298

San Francisco

New Cingular Wireless Pcs Llc

O1 Communications Inc. - Ca

Landline

415-302

Fairfield

Cellco Partnership Dba Verizon Wireless - Ca

Wireless

415-303

Livermore

Usa Mobility Wireless Inc.

Allegiance Telecom Inc. - Ca

Landline

415-307

San Francisco

New Cingular Wireless Pcs Llc

Wireless

415-308

Fairfield

Cellco Partnership Dba Verizon Wireless - Ca

Wireless

415-309

San Francisco

New Cingular Wireless Pcs Llc

Wireless

415-310

Fairfield

Cellco Partnership Dba Verizon Wireless - Ca

Usa Mobility Wireless Inc.

Wireless

415-314

Fairfield

Cellco Partnership Dba Verizon Wireless - Ca

Cellco Partnership Dba Verizon Wireless - Ca

U.s. Telepacific Corp. - Ca

Landline

415-322

San Francisco

O1 Communications Inc. - Ca

Landline

415-323

San Francisco

O1 Communications Inc. - Ca

Landline

415-324

San Francisco

Tw Telecom Of California Lp - Ca

Landline

415-325

Fremont

Tw Telecom Of California Lp - Ca

Landline

415-326

San Francisco

O1 Communications Inc. - Ca

Cellco Partnership Dba Verizon Wireless - Ca

Wireless

415-329

Oakland

Pac - West Telecomm Inc.

Level 3 Communications Llc - Ca

Bandwidth.com Clec Llc - Ca

Landline

415-341

Oakland

Astound Broadband Llc - Ca

Landline

415-342

Concord

New Cingular Wireless Pcs Llc

Wireless

415-343

Redwood City

Mci Worldcom Communications Inc. Ca

Sbc Internet Services Inc.

Astound Broadband Llc - Ca

Landline

415-350

San Francisco

New Cingular Wireless Pcs Llc

Broadwing Communications Llc - Ca

Pac - West Telecomm Inc.

Mcimetro Access Transmission Services Llc

Landline

415-361

San Francisco

New Cingular Wireless Pcs Llc

Peerless Network Of California Llc - Ca

Mci Worldcom Communications Inc. Ca

Landline

415-366

Oakland

Pac - West Telecomm Inc.

New Cingular Wireless Pcs Llc

American Messaging Services Llc

Landline

415-373

San Francisco

Global Crossing Local Services Inc.-ca

Global Crossing Local Services Inc.-ca

Landline

415-376

Oakland

Pac - West Telecomm Inc.

Cellco Partnership Dba Verizon Wireless - Ca

Race Telecommunications Inc. - Ca

Top prefixes in this area code

415-200→415-201→415-202→415-203→415-204→415-205→415-206→415-207→

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.