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 / 301

Area Code Directory

Area Code 301

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

MarylandLocation

United StatesCountry

301Area Code

Area Code Overview

Area Code301

Primary LocationMaryland

CountryUnited States

Prefix Coverage200 listed prefixes

Prefixes in 301

301-200

Washington

Bandwidth.com Clec Llc - Md

Landline

301-202

Washington

New Cingular Wireless Pcs Llc - Dc

Wireless

301-203

Fort Washington

Verizon Maryland Inc.

Landline

301-204

Beltsville

New Cingular Wireless Pcs Llc - Dc

Wireless

301-205

Mayo

Verizon Maryland Inc.

Landline

301-206

Laurel

Verizon Maryland Inc.

Landline

301-207

Silver Spring

Usa Mobility Wireless Inc.

Wireless

301-208

Gaithersburg

Verizon Maryland Inc.

Landline

301-209

Hyattsville

Verizon Maryland Inc.

Landline

301-210

Beltsville

Verizon Maryland Inc.

Landline

301-212

Gaithersburg

Verizon Maryland Inc.

Verizon Maryland Inc.

Landline

301-215

Chevy Chase

Verizon Maryland Inc.

Landline

301-216

Gaithersburg

Verizon Maryland Inc.

Landline

301-217

Rockville

Verizon Maryland Inc.

Landline

301-218

Upper Marlboro

Verizon Maryland Inc.

Landline

301-219

Beltsville

New Cingular Wireless Pcs Llc - Dc

Wireless

301-220

College Park

Verizon Maryland Inc.

Landline

301-221

Beltsville

New Cingular Wireless Pcs Llc - Dc

Wireless

301-222

Herndon

Cavalier Telephone Mid-atlantic Llc - Md

Landline

301-223

Williamsport

Verizon Maryland Inc.

Landline

301-224

Silver Spring

Usa Mobility Wireless Inc.

Wireless

301-225

Washington

Teleport Communications America Llc - Dc

Landline

301-226

Hyattsville

Verizon Maryland Inc.

Landline

301-227

Bethesda

Verizon Maryland Inc.

Landline

301-228

Frederick

Verizon Maryland Inc.

Landline

301-229

Bethesda

Verizon Maryland Inc.

Landline

301-230

Rockville

Verizon Maryland Inc.

Landline

301-231

Rockville

Verizon Maryland Inc.

Landline

301-232

Potomac

Mcimetro Access Transmission Services Llc

Landline

301-233

Annapolis Junction

Cellco Partnership Dba Verizon Wireless - Md

Wireless

301-234

Unknown City

Verizon Maryland Inc.

Landline

301-235

Washington

Mcimetro Access Transmission Services Llc

Landline

301-236

Silver Spring

Verizon Maryland Inc.

Verizon Maryland Inc.

Landline

301-239

Hyattsville

Verizon Maryland Inc.

Landline

301-240

Gaithersburg

Verizon Maryland Inc.

Landline

301-241

Cascade

Verizon Maryland Inc.

Landline

301-242

Washington

Mcimetro Access Transmission Services Llc

Landline

301-243

Bethesda

Verizon Maryland Inc.

Landline

301-244

Chevy Chase

Telcove Operations Inc. - Md

Landline

301-245

Bittinger

Verizon Maryland Inc.

Landline

301-246

Nanjemoy

Verizon Maryland Inc.

Landline

301-247

Beltsville

New Cingular Wireless Pcs Llc - Dc

Wireless

301-248

Unknown City

Verizon Maryland Inc.

Landline

301-249

Upper Marlboro

Verizon Maryland Inc.

Landline

301-250

Beltsville

Mcimetro Access Transmission Services Llc

Landline

301-251

Rockville

Verizon Maryland Inc.

Landline

301-252

Silver Spring

Sprint Spectrum L.p. - Md

Wireless

301-253

Damascus

Verizon Maryland Inc.

Verizon Maryland Inc.

Landline

301-256

Beltsville

Mcimetro Access Transmission Services Llc

Verizon Maryland Inc.

Landline

301-259

Newburg

Verizon Maryland Inc.

Landline

301-260

Olney

Verizon Maryland Inc.

Landline

301-261

Crofton

Verizon Maryland Inc.

Landline

301-262

Bowie

Verizon Maryland Inc.

Landline

301-263

Bethesda

Verizon Maryland Inc.

Landline

301-264

Mount Savage

Verizon Maryland Inc.

Landline

301-265

Unknown City

Verizon Maryland Inc.

Landline

301-266

Beltsville

New Cingular Wireless Pcs Llc - Dc

Uscoc Of Cumberland Inc. Dba United States Cel Md

Landline

301-269

Damascus

Usa Mobility Wireless Inc.

Wireless

301-270

Hyattsville

Verizon Maryland Inc.

Landline

301-271

Thurmont

Verizon Maryland Inc.

Landline

301-272

Potomac

Mcimetro Access Transmission Services Llc

Landline

301-273

Potomac

Mcimetro Access Transmission Services Llc

Landline

301-274

Hughesville

Verizon Maryland Inc.

Landline

301-275

Beltsville

New Cingular Wireless Pcs Llc - Dc

Wireless

301-276

Potomac

Mcimetro Access Transmission Services Llc

Landline

301-277

Hyattsville

Verizon Maryland Inc.

Landline

301-278

Potomac

Mcimetro Access Transmission Services Llc

Landline

301-279

Rockville

Verizon Maryland Inc.

Landline

301-280

Chevy Chase

Verizon Maryland Inc.

Landline

301-281

Beltsville

Mcimetro Access Transmission Services Llc

Landline

301-282

Silver Spring

Verizon Maryland Inc.

Landline

301-283

Bryans Road

Verizon Maryland Inc.

Landline

301-284

Potomac

Mcimetro Access Transmission Services Llc

Landline

301-285

Silver Spring

Verizon Maryland Inc.

Landline

301-286

College Park

Verizon Maryland Inc.

Landline

301-287

Potomac

Mcimetro Access Transmission Services Llc

Landline

301-288

Potomac

Mcimetro Access Transmission Services Llc

Landline

301-289

Potomac

Mcimetro Access Transmission Services Llc

Landline

301-290

Mechanicsville

Verizon Maryland Inc.

Landline

301-291

Potomac

Mcimetro Access Transmission Services Llc

Landline

301-292

Fort Washington

Verizon Maryland Inc.

Landline

301-293

Myersville

Verizon Maryland Inc.

Landline

301-294

Rockville

Verizon Maryland Inc.

Landline

301-295

Bethesda

Verizon Maryland Inc.

Landline

301-296

Reston

Mci Worldcom Communications Inc. - Md

Landline

301-297

Unknown City

Verizon Maryland Inc.

Landline

301-298

Washington

Mcimetro Access Transmission Services Llc

Landline

301-299

Bethesda

Verizon Maryland Inc.

Landline

301-300

Beltsville

Cellco Partnership Dba Verizon Wireless - Md

Wireless

301-302

Hagerstown

Sprint Spectrum L.p. - Md

Wireless

301-303

Silver Spring

Usa Mobility Wireless Inc.

Wireless

301-304

Frederick

Comcast Phone Of Northern Maryland Inc. - Md

Verizon Maryland Inc.

Landline

301-307

Columbia

Verizon Maryland Inc.

Landline

301-308

Silver Spring

Usa Mobility Wireless Inc.

Wireless

301-309

Rockville

Verizon Maryland Inc.

Landline

301-310

Baltimore

Verizon Maryland Inc.

Landline

301-312

Beltsville

New Cingular Wireless Pcs Llc - Dc

Wireless

301-313

College Park

Verizon Maryland Inc.

Landline

301-314

Chevy Chase

Paetec Communications Inc. - Md

Landline

301-315

Rockville

Verizon Maryland Inc.

Landline

301-316

Temple Hills

Verizon Maryland Inc.

Landline

301-317

Laurel

Verizon Maryland Inc.

Landline

301-318

Beltsville

New Cingular Wireless Pcs Llc - Dc

Wireless

301-319

Bethesda

Verizon Maryland Inc.

Landline

301-320

Bethesda

Verizon Maryland Inc.

Landline

301-321

Chevy Chase

Telcove Operations Inc. - Md

Landline

301-322

Hyattsville

Verizon Maryland Inc.

Landline

301-323

Laurel

Tw Telecom Of Maryland Llc - Md

Landline

301-324

Capitol Heights

Verizon Maryland Inc.

Landline

301-325

Hyattsville

Cellco Partnership Dba Verizon Wireless - Md

Wireless

301-326

Beltsville

Omnipoint Communications Cap Operations Llc

Wireless

301-327

Baltimore

Comcast Phone Of Northern Maryland Inc. - Md

Landline

301-328

Washington

Comcast Phone Of Northern Maryland Inc. - Md

Landline

301-329

Hanover

Cavalier Telephone Mid-atlantic Llc - Md

Landline

301-330

Gaithersburg

Verizon Maryland Inc.

Landline

301-331

Monrovia

New Cingular Wireless Pcs Llc - Dc

Wireless

301-332

Beltsville

New Cingular Wireless Pcs Llc - Dc

Wireless

301-333

Capitol Heights

Verizon Maryland Inc.

Landline

301-334

Oakland

Verizon Maryland Inc.

Landline

301-335

Beltsville

New Cingular Wireless Pcs Llc - Dc

Wireless

301-336

Capitol Heights

Verizon Maryland Inc.

Landline

301-337

Annapolis Junction

Mci Worldcom Communications Inc. - Md

Landline

301-338

Monrovia

Idt America Corp - Md

Landline

301-339

Herndon

Cavalier Telephone Mid-atlantic Llc - Md

Landline

301-340

Rockville

Verizon Maryland Inc.

Landline

301-341

Hyattsville

Verizon Maryland Inc.

Landline

301-342

Patuxent River

Verizon Maryland Inc.

Landline

301-343

Silver Spring

Sprint Spectrum L.p. - Md

Wireless

301-344

College Park

Verizon Maryland Inc.

Landline

301-345

College Park

Verizon Maryland Inc.

Landline

301-346

Beltsville

New Cingular Wireless Pcs Llc - Dc

Wireless

301-347

Chevy Chase

Verizon Maryland Inc.

Landline

301-348

Reston

Mci Worldcom Communications Inc. - Md

Landline

301-349

Poolesville

Verizon Maryland Inc.

Landline

301-350

Capitol Heights

Verizon Maryland Inc.

Landline

301-351

Annapolis Junction

Cellco Partnership Dba Verizon Wireless - Md

Wireless

301-352

Bowie

Verizon Maryland Inc.

Landline

301-353

Germantown

Verizon Maryland Inc.

Landline

301-354

Washington

Teleport Communications America Llc - Dc

Landline

301-355

Gaithersburg

Verizon Maryland Inc.

Landline

301-356

Annapolis Junction

Vdl Inc. Dba Global Telecom Brokers - Md

Landline

301-357

Beltsville

Cellco Partnership Dba Verizon Wireless - Md

Wireless

301-358

McLean

Level 3 Communications Llc - Md

Landline

301-359

Cumberland

Verizon Maryland Inc.

Landline

301-360

Frederick

Verizon Maryland Inc.

Landline

301-361

Laurel

Tw Telecom Of Maryland Llc - Md

Landline

301-362

Laurel

Verizon Maryland Inc.

Landline

301-363

Frederick

Level 3 Communications Llc - Md

Landline

301-364

Reston

Mci Worldcom Communications Inc. - Md

Landline

301-365

Bethesda

Verizon Maryland Inc.

Landline

301-366

Silver Spring

Sprint Spectrum L.p. - Md

Wireless

301-367

Hyattsville

Cellco Partnership Dba Verizon Wireless - Md

Wireless

301-368

Damascus

Verizon Maryland Inc.

Landline

301-369

Laurel

Verizon Maryland Inc.

Landline

301-370

Silver Spring

Sprint Spectrum L.p. - Md

Wireless

301-371

Braddock Heights

Verizon Maryland Inc.

Landline

301-372

Brandywine

Verizon Maryland Inc.

Landline

301-373

Hollywood

Verizon Maryland Inc.

Landline

301-374

Waldorf

Verizon Maryland Inc.

Landline

301-375

Bryans Road

Verizon Maryland Inc.

Landline

301-376

Laurel

Verizon Maryland Inc.

Landline

301-377

Sterling

Comcast Phone Of Northern Maryland Inc. - Md

Landline

301-378

Frederick

Comcast Phone Of Northern Maryland Inc. - Md

Verizon Maryland Inc.

Landline

301-382

Rockville

Verizon Maryland Inc.

Landline

301-383

Battery Park

Comcast Phone Of Northern Maryland Inc. - Md

Landline

301-384

Silver Spring

Verizon Maryland Inc.

Landline

301-385

Beltsville

New Cingular Wireless Pcs Llc - Dc

Wireless

301-386

Hyattsville

Verizon Maryland Inc.

Landline

301-387

Oakland

Verizon Maryland Inc.

Landline

301-388

Silver Spring

Verizon Maryland Inc.

Landline

301-389

Laurel

Tw Telecom Of Maryland Llc - Md

Landline

301-390

Upper Marlboro

Verizon Maryland Inc.

Landline

301-391

Damascus

Verizon Maryland Inc.

Landline

301-392

La Plata

Verizon Maryland Inc.

Landline

301-393

Hagerstown

Verizon Maryland Inc.

Landline

301-394

Beltsville

Verizon Maryland Inc.

Landline

301-395

Baltimore

Cellco Partnership Dba Verizon Wireless - Md

Wireless

301-396

Waldorf

Verizon Maryland Inc.

Landline

301-397

College Park

Verizon Maryland Inc.

Landline

301-398

Rockville

Verizon Maryland Inc.

Verizon Maryland Inc.

Landline

301-401

Monrovia

New Cingular Wireless Pcs Llc - Dc

Wireless

301-402

Bethesda

Verizon Maryland Inc.

Landline

301-403

Hyattsville

Verizon Maryland Inc.

Top prefixes in this area code

301-200→301-202→301-203→301-204→301-205→301-206→301-207→301-208→

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.