Table of Contents

North American Numbering Plan

Area code Exhaustion

Overlays

How does this relate to Ytel?

List of Exhausted Area codes (2021)

North American Numbering Plan

The North American Numbering Plan (NANP) is a numbering plan used in the United states, which divides the territories into numbering plan areas which make up the three-digit telephone number prefix that is commonly referred to as area code.

There are currently 24 non-geographic area codes in service (i.e. 800, 833, 900) and 398 Geographic area codes in service (includes Canada).

Area code Exhaustion

Area code exhaustion happens when almost all of the numbers are in use and the industry no longer has any new numbers available. The only way to obtain numbers in these area codes is when an existing number is no longer in use. Often times these numbers cannot be made immediately available, as they typically sit for a certain amount of time before they can become available for use again.

Overlays are created to help accommodate this exhaustion.

Overlays

An area code overlay occurs when more than one area code serves the same geographic area. In an area code overlay, relief is provided by opening up a new area code within the same geographic area as the area code requiring relief.

How does this relate to Ytel?

Often times, it can be frustrating when, as a business owner, you are looking for a phone number for your business in a specific area code, but none are available.

Although we do our best in attempting to obtain numbers in these exhausted area codes, we highly recommend obtaining an overlay area code, which will serve the same geographical region as the number you are looking to obtain.

Since number availability in these exhausted area codes is highly dependent on when an "old number" is recycled - it is hard to predicate when,if any, numbers in the exhausted list of area codes will be come available.

For more information, we highly recommend you take a look at the NAPA website. They provide free information on any potential new upcoming area codes as well as predictions on when certain area codes will become exhausted, such as 202 becoming exhausted in 2021.

As always feel free to reach out to Ytel for any additional questions.

List of Exhausted Area Codes (2021)

NPA (Area Code)

Overlays

201

551

203

475

205

659

208

986

210

726

212

332/646/917

214

469/972/945

215

267/445

217

447

248

947

267

215/445

270

364

281

346/713/832

301

240/227

303

720

304

681

305

786

310

424

312

872

315

680

317

463

323

213

330

234

336

743

347

718/917/929

360

564

402

531

404

470/678/943

407

689

408

669

410

443/667

415

628

419

567

443

410/667

469

214/972/945

503

971

508

774

510

341

512

512

518

838

541

458

570

272

601

769

610

484

614

380

617

857

630

331

631

934

646

212/332/917

678

404/470/770/943

702

725

703

571

704

980

706

762

708

464

713

281/346/832

714

657

717

223

718

347/917/929

724

878

732

848

740

220

760

442

770

470/678/943

773

872

787

939

801

801

803

839

812

930

814

582

815

779

817

682

818

747

832

281/346/713

843

854

847

224

860

959

903

430

917

212/332/646

918

539

919

984

972

214/469/945

973

862

978

351

We're here to help - if you need assistance, please contact the Ytel support team via email at support@ytel.com or you can click the live chat button at the bottom right of your screen.

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