Phone list guides for sales teams

How to keep calling and texting lists clean, compliant and worth dialing. Plain English, with links to the FTC and FCC rules.

Phone list cleaning: a practical guide for sales teams

How to clean a phone list before you dial or text: remove dead and invalid numbers, flag landlines and VoIP, dedupe, normalize formats, and handle compliance steps.

DNC scrubbing basics for sales teams

Plain-English basics of Do Not Call scrubbing: the National DNC Registry, the 31-day rule, internal DNC lists, exemptions, safe harbor, and penalties, with FTC and FCC sources.

How to register your business for the National Do Not Call Registry

Step-by-step: how sellers and telemarketers register to access the National Do Not Call Registry at telemarketing.donotcall.gov, what a SAN is, how area code fees work, and what you cannot do with the data.

Why your dialer keeps hitting dead numbers

Why predictive and power dialers burn time on disconnected numbers, fast busies and intercept messages, what it does to connect rates and caller reputation, and how to fix it.

The FCC Reassigned Numbers Database, explained

What the FCC Reassigned Numbers Database (RND) is, who should use it, how the TCPA safe harbor works, and how it differs from phone validation and DNC scrubbing.

SMS list hygiene: keep your texts delivering

How to keep an SMS marketing list healthy: remove landlines and dead numbers, honor opt-outs, follow consent rules and CTIA guidance, and protect deliverability.

Free tool: list health calculator

Estimate dead numbers, landlines and the agent time a dirty list costs per pass.

Free tool: bulk phone number formatter

Convert a pasted list to E.164, remove duplicates and flag invalid formats. Runs in your browser.

Free tool: duplicate lead remover

Dedupe a CSV lead list by phone or email, even when they are written differently. Runs in your browser.

Free tool: CSV phone number normalizer

Upload a CSV and rewrite its phone columns to E.164 or one US format, with invalid numbers flagged. Runs in your browser.

Free tool: toll-free number checker

Paste a list and flag every 800, 833, 844, 855, 866, 877 and 888 number. Runs in your browser.

Free tool: country code lookup

Find any country's calling code, or paste an international number to see where it is from.

Free tool: insurance lead list calculator

Estimate the dead, landline and VoIP numbers on an aged or purchased insurance lead list and the dial time they waste.

Free tool: solar lead list calculator

Estimate the dead, landline and VoIP numbers on a purchased, aged or door-knock solar lead list and the setter time they waste.

Free tool: real estate lead list calculator

Estimate the dead, landline and VoIP numbers on an expired, FSBO, absentee-owner or aged buyer list and the dial time they waste.

Free tool: call center lead list calculator

Estimate the dead, landline and VoIP numbers on a purchased, aged or recycled dialer list and the agent time they waste.

Free tool: debt collection phone list calculator

Estimate the dead, landline and VoIP numbers on a placement file or aged portfolio and the collector time they waste.

Free tool: recruiting candidate list calculator

Estimate the dead, landline and VoIP numbers in an ATS or candidate database and the recruiter time they waste.

Free tool: political campaign phone list calculator

Estimate the dead, landline and VoIP numbers on a voter file or supporter list and the volunteer time or texts they waste.

Free tool: home services lead list calculator

Estimate the dead, landline and VoIP numbers on an HVAC, roofing or plumbing lead or past-customer list and the CSR time or texts they waste.

Free tool: lead generation list calculator

Estimate the dead, landline and VoIP numbers in a batch of form fills or aged leads and the dials or texts they waste for your buyers.

Free tool: marketing agency SMS list calculator

Estimate the dead, landline and VoIP numbers on a client's SMS or calling list and the texts and dials they waste before a campaign.

Free tool: mortgage & financial services lead list calculator

Estimate the dead, landline and VoIP numbers on a mortgage, lending or advisory lead list and the dials and texts they waste.

Free tool: auto dealer lead list calculator

Estimate the dead, landline and VoIP numbers on a dealership BDC or internet sales lead list and the dials and texts they waste.

Free tool: B2B sales lead list calculator

Estimate the dead, landline and VoIP numbers on a B2B prospect list and the dials and texts they waste.

Free tool: law firm lead list calculator

Estimate the dead, landline and VoIP numbers on a case lead list and the dials and texts they waste.

Free tool: ecommerce SMS list calculator

Estimate the dead, landline and VoIP numbers on a customer SMS list and what the undeliverable texts cost per send.

Free tool: nonprofit donor phone list calculator

Estimate the dead, landline and VoIP numbers on a donor file and the dials and texts they waste.

Free tool: school enrollment lead list calculator

Estimate the dead, landline and VoIP numbers on an inquiry list and the dials and texts they waste.

Free tool: gym lead list calculator

Estimate the dead, landline and VoIP numbers on a guest pass or membership lead list and the dials and texts they waste.

Free tool: mortgage lead list calculator

Estimate the dead, landline and VoIP numbers on a purchase or refinance lead list and the dials and texts they waste.

Free tool: property management phone list calculator

Estimate the dead, landline and VoIP numbers on a tenant, applicant or owner list and the calls and texts they waste.

Free tool: roofing lead list calculator

Estimate the dead, landline and VoIP numbers on a storm, inspection or old-estimate lead list and the dials and texts they waste.

Free tool: HVAC lead list calculator

Estimate the dead, landline and VoIP numbers on a tune-up, maintenance-plan or old-quote list and the dials and texts they waste.

Free tool: final expense lead list calculator

Estimate the dead, landline and VoIP numbers on a direct mail, Facebook or aged final expense lead list and the dials and texts they waste.

Free tool: Medicare lead list calculator

Estimate the dead, landline and VoIP numbers on a turning-65, web form or aged Medicare lead list and the dials and texts they waste.

Free tool: life insurance lead list calculator

Estimate the dead, landline and VoIP numbers on a web form, mortgage protection or aged life insurance lead list and the dials and texts they waste.

Free tool: auto insurance lead list calculator

Estimate the dead, landline and VoIP numbers on a web quote, shared or aged auto insurance lead list and the dials and texts they waste.

Free tool: health insurance lead list calculator

Estimate the dead, landline and VoIP numbers on a web quote, shared or aged health insurance lead list and the dials and texts they waste.

Free tool: home insurance lead list calculator

Estimate the dead, landline and VoIP numbers on a web quote, shared or aged home insurance lead list and the dials and texts they waste.

Free tool: commercial insurance lead list calculator

Estimate the dead, landline and VoIP numbers on a web quote, purchased or aged business insurance lead list and the dials and texts they waste.

Free tool: aged lead list calculator

Estimate the dead, landline and VoIP numbers on an aged lead list and the dials and texts they waste.

Free tool: annuity lead list calculator

Estimate the dead, landline and VoIP numbers on a web form, seminar, direct mail or aged annuity lead list and the dials and texts they waste.

Free tool: mortgage protection lead list calculator

Estimate the dead, landline and VoIP numbers on a direct mail, web form, call-in or aged mortgage protection lead list and the dials and texts they waste.

Free tool: long-term care insurance lead list calculator

Estimate the dead, landline and VoIP numbers on a web form, direct mail, seminar or aged long-term care lead list and the dials and texts they waste.

Free tool: IUL lead list calculator

Estimate the dead, landline and VoIP numbers on a social ad form, web form, referral or aged IUL lead list and the dials and texts they waste.

Free tool: disability insurance lead list calculator

Estimate the dead, landline and VoIP numbers on a web form, social ad form, referral or aged disability insurance lead list and the dials and texts they waste.

Free tool: ACA lead list calculator

Estimate the dead, landline and VoIP numbers on a web form, social ad form, referral or aged ACA lead list and the dials and texts they waste.

Free tool: Medicare Supplement lead list calculator

Estimate the dead, landline and VoIP numbers on a turning-65, web form, mail reply card or aged Medicare Supplement lead list and the dials and texts they waste.

Free tool: Medicare Advantage lead list calculator

Estimate the dead, landline and VoIP numbers on a web form, inbound call, client review or aged Medicare Advantage lead list and the dials and texts they waste.

Free tool: Turning 65 lead list calculator

Estimate the dead, landline and VoIP numbers on a compiled, mail reply, web form or aged turning 65 (T65) lead list and the dials and texts they waste.

Free tool: Workers' comp lead list calculator

Estimate the dead, landline and VoIP numbers on an x-date, compiled business, web quote or aged workers' comp lead list and the dials and texts they waste.

Free tool: Dental insurance lead list calculator

Estimate the dead, landline and VoIP numbers on a web quote, mail reply, compiled senior or aged dental insurance lead list and the dials and texts they waste.

Free tool: Trucking insurance lead list calculator

Estimate the dead, landline and VoIP numbers on a new authority, renewal date, web quote or aged trucking insurance lead list and the dials and texts they waste.

Free tool: SMS character counter

Count characters and segments, see GSM-7 vs UCS-2, and find the emoji or curly quotes that make a text cost more.

Free tool: cost of dead dials calculator

See the rep hours, labor and telecom minutes your team burns each month dialing disconnected numbers.

Free tool: calling hours by state

See which states are stricter than the TCPA 8am–9pm window, which bar Sunday calls, and whether a state is open right now.

Free tool: phone number prefix lookup

Paste a list and see what each area code and prefix reveals, and why it can't tell mobile from landline. Runs in your browser.

Free tool: phone carrier lookup

Enter a number and see its carrier, line type (mobile, landline or VoIP) and whether it is valid.

Free tool: phone number verification

Verify a phone number is a real, working line before you call or text it. Nothing is sent to the number.

Twilio Lookup alternative

Valid, line type and carrier on a whole list by CSV upload, API or Claude, without writing code.

Free tool: landline checker

Is this a landline or a cell phone? Check the line type and carrier of any US number.

Free tool: TCPA calling hours checker

Paste numbers or area codes and see which are inside the 8am–9pm local calling window right now.

Free tool: phone list time zone sorter

Split a call list into Eastern, Central, Mountain and Pacific batches by area code, one CSV per zone.

Glossary

What is phone line type?What is an HLR lookup?What is a VoIP number?What is a ported number?What is E.164 format?What is CNAM?What is a carrier lookup?What is NPA-NXX?What is the TCPA?What is STIR/SHAKEN?

Product pages

Phone number validation with live carrier data Bulk phone number validation Landline scrubber for texting and dialing lists VoIP number detection Phone validation API Lead list cleaning Disconnected phone number checker Carrier lookup for any phone number SMS list cleaning Cold calling list cleaning

Phone validation by industry

Call centers Lead generation Real estate Insurance Solar Debt collection Recruiting Marketing agencies Home services Political campaigns Financial services

Carrier and line type by carrier

Verizon AT&T T-Mobile US Cellular Google Voice Bandwidth Twilio TextNow Onvoy / Inteliquent Telnyx Vonage RingCentral Lumen / CenturyLink Frontier

Integration guides

Comparisons

TrueSearch vs 1Lookup TrueSearch vs Twilio Lookup TrueSearch vs NumVerify TrueSearch vs Trestle TrueSearch vs RealValidation TrueSearch vs Searchbug TrueSearch vs Telesign TrueSearch vs ZeroBounce TrueSearch vs Melissa TrueSearch vs Abstract API TrueSearch vs Telnyx Number Lookup TrueSearch vs Vonage Number Insight TrueSearch vs Plivo Lookup TrueSearch vs Sinch Number Lookup TrueSearch vs Bandwidth Number Lookup TrueSearch vs SignalWire Lookup TrueSearch vs Infobip Number Lookup TrueSearch vs HLR Lookups TrueSearch vs Veriphone TrueSearch vs NumLookup TrueSearch vs IPQualityScore TrueSearch vs Byteplant Phone-Validator TrueSearch vs Cloudmersive TrueSearch vs ClearoutPhone TrueSearch vs PhoneValidator.com TrueSearch vs Free Carrier Lookup TrueSearch vs Textmagic Carrier Lookup TrueSearch vs OpenCNAM TrueSearch vs EveryoneAPI TrueSearch vs Ekata TrueSearch vs Neustar (TransUnion)TrueSearch vs Prove TrueSearch vs Whitepages TrueSearch vs Experian Data Quality TrueSearch vs Loqate TrueSearch vs Data8 TrueSearch vs BriteVerify TrueSearch vs XVerify TrueSearch vs Accurate Append TrueSearch vs DataZapp TrueSearch vs BatchData TrueSearch vs BatchLeads TrueSearch vs PropStream TrueSearch vs DealMachine TrueSearch vs REISkip TrueSearch vs Skip Genie TrueSearch vs DNC.com TrueSearch vs The Blacklist Alliance TrueSearch vs Gryphon TrueSearch vs PossibleNOW

Alternatives

1Lookup alternative Twilio Lookup alternative NumVerify alternative Trestle alternative RealValidation alternative Searchbug alternative Telesign alternative ZeroBounce alternative Melissa alternative Abstract API alternative Telnyx Number Lookup alternative Vonage Number Insight alternative Plivo Lookup alternative Sinch Number Lookup alternative Bandwidth Number Lookup alternative SignalWire Lookup alternative Infobip Number Lookup alternative HLR Lookups alternative Veriphone alternative NumLookup alternative IPQualityScore alternative Byteplant Phone-Validator alternative Cloudmersive alternative ClearoutPhone alternative PhoneValidator.com alternative Free Carrier Lookup alternative Textmagic Carrier Lookup alternative OpenCNAM alternative EveryoneAPI alternative Ekata alternative Neustar (TransUnion) alternative Prove alternative Whitepages alternative Experian Data Quality alternative Loqate alternative Data8 alternative BriteVerify alternative XVerify alternative Accurate Append alternative DataZapp alternative BatchData alternative BatchLeads alternative PropStream alternative DealMachine alternative REISkip alternative Skip Genie alternative DNC.com alternative The Blacklist Alliance alternative Gryphon alternative PossibleNOW alternative

Phone validation by area code

Alabama

205 251 256 334 659 938

Alaska

Alberta

403 587 780 825

Arizona

480 520 602 623 928

Arkansas

British Columbia

236 250 604 778

California

209 213 279 310 323 341 350 408 415 424 442 510 530 559 562 619 626 628 650 657 661 669 707 714 747 760 805 818 820 831 858 909 916 925 949 951

Colorado

303 719 720 970 983

Connecticut

203 475 860 959

Delaware

Florida

239 305 321 352 386 407 448 561 656 689 727 754 772 786 813 850 863 904 941 954

Georgia

229 404 470 478 678 706 762 770 912 943

Hawaii

Idaho

Illinois

217 224 309 312 331 447 464 618 630 708 730 773 779 815 847 872

Indiana

219 260 317 463 574 765 812 930

Iowa

319 515 563 641 712

Kansas

316 620 785 913

Kentucky

270 364 502 606 859

Louisiana

225 318 337 504 985

Maine

Manitoba

Maryland

227 240 301 410 443 667

Massachusetts

339 351 413 508 617 774 781 857 978

Michigan

231 248 269 313 517 586 616 734 810 906 947 989

Minnesota

218 320 507 612 651 763 952

Mississippi

228 601 662 769

Missouri

235 314 417 573 636 660 816 975

Montana

Nebraska

Nevada

New Brunswick

New Hampshire

New Jersey

201 551 609 640 732 848 856 862 908 973

New Mexico

New York

212 315 332 347 516 518 585 607 631 646 680 716 718 838 845 914 917 929 934

Newfoundland and Labrador

North Carolina

252 336 472 704 743 828 910 919 980 984

North Dakota

Nova Scotia

Ohio

216 220 234 283 326 330 380 419 440 513 567 614 740 937

Oklahoma

405 539 572 580 918

Ontario

226 249 289 343 365 416 437 519 548 613 647 705 807 905

Oregon

458 503 541 971

Pennsylvania

215 223 267 272 412 445 484 570 610 717 724 814 835 878

Quebec

418 438 450 514 579 581 819 873

Rhode Island

Saskatchewan

South Carolina

803 839 843 854 864

South Dakota

Tennessee

423 615 629 731 865 901 931

Texas

210 214 254 281 325 346 361 409 430 432 469 512 682 713 726 737 806 817 830 832 903 915 936 940 945 956 972 979

Utah

Vermont

Virginia

276 434 540 571 703 757 804 826 948

Washington

206 253 360 425 509

Washington, D.C.

West Virginia

Wisconsin

262 274 353 414 534 608 715 920

Wyoming

Yukon

Each area code page links to its prefix (NPA-NXX) pages, for example 412-554.

Country calling codes

United States +1 Canada +1 Puerto Rico +1 U.S. Virgin Islands +1 Guam +1 Northern Mariana Islands +1 American Samoa +1 Bahamas +1 Barbados +1 Anguilla +1 Antigua and Barbuda +1 British Virgin Islands +1 Cayman Islands +1 Bermuda +1 Grenada +1 Turks and Caicos Islands +1 Jamaica +1 Montserrat +1 Sint Maarten +1 Saint Lucia +1 Dominica +1 Saint Vincent and the Grenadines +1 Dominican Republic +1 Trinidad and Tobago +1 Saint Kitts and Nevis +1 Russia +7 Kazakhstan +7 Egypt +20 South Sudan +211 Morocco +212 Algeria +213 Tunisia +216 Libya +218 Gambia +220 Senegal +221 Mauritania +222 Mali +223 Guinea +224 Côte d'Ivoire +225 Burkina Faso +226 Niger +227 Togo +228 Benin +229 Mauritius +230 Liberia +231 Sierra Leone +232 Ghana +233 Nigeria +234 Chad +235 Central African Republic +236 Cameroon +237 Cape Verde +238 São Tomé and Príncipe +239 Equatorial Guinea +240 Gabon +241 Republic of the Congo +242 Democratic Republic of the Congo +243 Angola +244 Guinea-Bissau +245 British Indian Ocean Territory +246 Seychelles +248 Sudan +249 Rwanda +250 Ethiopia +251 Somalia +252 Djibouti +253 Kenya +254 Tanzania +255 Uganda +256 Burundi +257 Mozambique +258 Zambia +260 Madagascar +261 Réunion +262 Mayotte +262 Zimbabwe +263 Namibia +264 Malawi +265 Lesotho +266 Botswana +267 Eswatini +268 Comoros +269 South Africa +27 Saint Helena +290 Eritrea +291 Aruba +297 Faroe Islands +298 Greenland +299 Greece +30 Netherlands +31 Belgium +32 France +33 Spain +34 Gibraltar +350 Portugal +351 Luxembourg +352 Ireland +353 Iceland +354 Albania +355 Malta +356 Cyprus +357 Finland +358 Åland Islands +358 Bulgaria +359 Hungary +36 Lithuania +370 Latvia +371 Estonia +372 Moldova +373 Armenia +374 Belarus +375 Andorra +376 Monaco +377 San Marino +378 Ukraine +380 Serbia +381 Montenegro +382 Kosovo +383 Croatia +385 Slovenia +386 Bosnia and Herzegovina +387 North Macedonia +389 Italy +39 Vatican City +39 Romania +40 Switzerland +41 Czech Republic +420 Slovakia +421 Liechtenstein +423 Austria +43 United Kingdom +44 Guernsey +44 Jersey +44 Isle of Man +44 Denmark +45 Sweden +46 Norway +47 Svalbard and Jan Mayen +47 Poland +48 Germany +49 Falkland Islands +500 Belize +501 Guatemala +502 El Salvador +503 Honduras +504 Nicaragua +505 Costa Rica +506 Panama +507 Saint Pierre and Miquelon +508 Haiti +509 Peru +51 Mexico +52 Cuba +53 Argentina +54 Brazil +55 Chile +56 Colombia +57 Venezuela +58 Guadeloupe +590 Saint Barthélemy +590 Saint Martin +590 Bolivia +591 Guyana +592 Ecuador +593 French Guiana +594 Paraguay +595 Martinique +596 Suriname +597 Uruguay +598 Curaçao +599 Caribbean Netherlands +599 Malaysia +60 Australia +61 Christmas Island +61 Cocos (Keeling) Islands +61 Indonesia +62 Philippines +63 New Zealand +64 Singapore +65 Thailand +66 Timor-Leste +670 Norfolk Island +672 Brunei +673 Nauru +674 Papua New Guinea +675 Tonga +676 Solomon Islands +677 Vanuatu +678 Fiji +679 Palau +680 Wallis and Futuna +681 Cook Islands +682 Niue +683 Samoa +685 Kiribati +686 New Caledonia +687 Tuvalu +688 French Polynesia +689 Tokelau +690 Micronesia +691 Marshall Islands +692 Japan +81 South Korea +82 Vietnam +84 North Korea +850 Hong Kong +852 Macau +853 Cambodia +855 Laos +856 China +86 Bangladesh +880 Taiwan +886 Turkey +90 India +91 Pakistan +92 Afghanistan +93 Sri Lanka +94 Myanmar +95 Maldives +960 Lebanon +961 Jordan +962 Syria +963 Iraq +964 Kuwait +965 Saudi Arabia +966 Yemen +967 Oman +968 Palestine +970 United Arab Emirates +971 Israel +972 Bahrain +973 Qatar +974 Bhutan +975 Mongolia +976 Nepal +977 Iran +98 Tajikistan +992 Turkmenistan +993 Azerbaijan +994 Georgia +995 Kyrgyzstan +996 Uzbekistan +998

This guide is general information, not legal advice. TrueSearch for Business checks validity, line type and carrier from licensed telecom data. It does not check the National Do Not Call Registry, state DNC lists or the FCC Reassigned Numbers Database. Not a consumer reporting agency; not for FCRA purposes.