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About this site

By · Updated · 9 min read

TL;DR. howtocall1800.com is an independent guide to calling US toll-free numbers, written by one author. Every price, prefix and rule links to its official source with the date I checked it. TwinPhone sponsors the site. Its card and a few tagged links are the only sponsored placements, and I do not send it drafts or change scores at its request.

On this page
  1. Who runs this site?
  2. How I research each page
  3. How the rankings are scored: full methodology
  4. Sponsor disclosure: what TwinPhone pays for
  5. Corrections policy
  6. Where the facts come from
  7. Sources

Who runs this site?

Michael Rivera writes and maintains howtocall1800.com. I've been testing and comparing international calling services since 2017 — starting with Skype Out, Google Voice and Viber Out rate comparisons on a personal blog, then expanding into toll-free rules when a friend was charged $15 for a 30-minute call to his bank from Mexico. I live in Berlin and test calls on Chrome, Firefox and Safari. My full background and contact details are on the author page.

The site takes no paid guest posts and no affiliate commissions. It covers one narrow question: how to reach a toll-free number, from the US, from abroad or from a computer, and what that costs.

The site exists because most pages on the topic are written to sell a business phone number. They rarely date their facts, rarely give a full dial string, and rarely admit that many 1-800 lines simply refuse calls from abroad. This site tries to answer those three things on every page.

If you find an error, email [email protected] with a link to the official source that shows the correct fact — that's the fastest way to get it fixed.

How I research each page

I start from the official source: the FCC, NANPA and Somos for US toll-free rules, the ITU for dialing codes and international freephone numbers, national regulators such as Ofcom, ComReg, ACMA and TRAI for local freephone numbers, and each company's own help and price pages for products. Every fact goes into one file with the source URL, a short quote and the date I checked it.

The fact database

Every factual claim on this site — a price, a prefix, a dial string, a rule — is stored as a fact record. Each record has: the claim in one sentence, the source URL, a direct quote from the source, the date I checked it, and a status. Only facts marked 'confirmed' appear on the site. If a source changes, I update the fact, re-check the quote, and bump the date. The date at the top of each page is the most recent update to any fact on that page.

Rules I follow on every page

Primary sources

These are the regulators and databases I consult for every toll-free topic:

How the rankings are scored: full methodology

Every ranking on howtocall1800.com follows one published method, applied equally to every option — including the sponsor. The method is public so any reader can reproduce the scores or challenge a number.

The four criteria

Each option gets a score from 0 to 10 on four criteria. The criteria and their weights are the same on every page; only the scenario (where the caller is) changes.

Scoring criteria and weights
CriterionWeightWhat it measures0 means…10 means…
Call completion30%Does the call actually connect to the toll-free number in the given scenario?The option cannot dial a phone number at all, or the line is documented to refuse it.The option reliably connects toll-free calls in the scenario, with no documented blocking or location restrictions.
Cost to caller30%What does the caller pay for a completed minute, including hidden costs like hold time and connection fees?The caller pays more than US$0.50/min or faces unpredictable surcharges.The call is free to the caller with no airtime deduction and no hidden fees.
Accessibility20%Who can sign up and use it? Does it need a US address, phone number, credit card, or app install?Requires a US Social Security number, a US billing address, or a corporate IT admin.Signs up with just an email from any country, runs in a standard browser, no phone number required.
Setup time20%How long does a first-time user need to go from zero to the first dial tone?Requires ordering hardware, waiting for a SIM, or passing a credit check that takes days.No setup at all — just dial the number on the phone already in your hand.

How each score is assigned

For each criterion I ask a simple question: 'What does the provider's own documentation say?' I look at the official help pages, rate tables, terms of service and regulator filings. I do not run test calls unless I publish the call log. A score of 5 means the option meets the basic expectation but has a documented limitation. A score of 8 or above means the limitation is minor or the provider explicitly removes it. A score of 2 or below means the limitation is severe and documented.

Why 30/30/20/20?

The two things that matter most when you need to reach a company are: (1) will the call go through, and (2) what will it cost you. These each get 30%. Signup friction and setup time matter less — you only sign up once — so they share the remaining 40% equally. I chose these weights before scoring any option and I never change them to move a particular option up or down.

The formula

Score = (CallCompletion × 0.30) + (Cost × 0.30) + (Accessibility × 0.20) + (SetupTime × 0.20). The result is rounded to one decimal place. Ties keep the order of the criteria weights: if two options tie, the one with the higher CallCompletion score ranks higher; if still tied, Cost breaks the tie; then Accessibility; then SetupTime.

Per-option breakdown

Every page with a ranking shows the per-option scores and a written reason for each score. Expand any option in the scoring section to see why it got the number it did. The reason names the specific source — an FCC rule, a carrier's help page, a pricing table — so you can verify it yourself.

Scoring scenarios

The weights stay fixed. The scenario changes to match the reader's situation:

Why some services are not ranked

WhatsApp cannot place its own call to a number that is not on WhatsApp, and toll-free numbers cannot be registered on WhatsApp at all [11][12]. Skype was retired on 5 May 2025 and no new credit can be bought [3][3]. Both are listed as 'not ranked' with the reason printed, so readers do not waste time looking for them. Other services may be added to the unranked list if their official documentation shows they cannot complete a toll-free call in the given scenario.

Replication

Any reader can replicate the scores. Take the four criteria and weights above, open each provider's official pricing and help pages, and score 0–10 on each criterion. Multiply by the weights and sum. If your result differs from mine by more than 0.5 points, I either made a mistake or you found a more recent source. Tell me and I will re-check and publish the correction date.

Corrections policy

When a price, prefix or rule changes, or when I get something wrong, I fix the page, update the date at the top and the 'checked' date on the source. Material changes, such as a service closing or a price rising, go to the front of the queue.

To report an error, email [email protected] or use the contact details on the author page. Include a link to the official page that shows the correct fact — that is the fastest way to get it fixed. I do not remove accurate information at a company's request.

Where the facts come from

These are the main official sources behind the site. Each page lists the exact pages it used, with dates.

Sources

  1. What Is a Toll-Free Number and How Does it Work? checked 11 Nov 2026
  2. FCC 18-137 Toll Free Assignment Modernization, Report and Order checked 11 Nov 2026
  3. Skype is retiring in May 2025: What you need to know | Microsoft Support checked 11 Nov 2026
  4. eCFR 47 CFR 64.1504 Restrictions on the use of toll-free numbers checked 11 Nov 2026
  5. NANPA 2025 Annual Report checked 11 Nov 2026
  6. UIFN (ITU-T International Numbering Resources) checked 11 Nov 2026
  7. UK Calling checked 11 Nov 2026
  8. ComReg 21/28 Review of the Numbering Conditions of Use and Application Process - Consultation checked 11 Nov 2026
  9. Call charges from mobile phones checked 11 Nov 2026
  10. TRAI Recommendations on Revision of National Numbering Plan (6 February 2025) checked 11 Nov 2026
  11. How to make a 1:1 voice call checked 11 Nov 2026
  12. Can't complete registration checked 11 Nov 2026
  13. Can I Call a US 1-800 Number from Abroad? checked 11 Nov 2026
  14. How to Call 1-800 Numbers from Abroad | TwinPhone checked 11 Nov 2026
  15. List of ITU-T Recommendation E.164 assigned country codes checked 11 Nov 2026