Terms

Humber is operated by RESignal, Inc., a Delaware corporation, at 8 The Green, Ste A, Dover, DE 19901, United States. These terms are a contract between you and us. You agree to them when you tick the box at checkout, and by using Humber.

Version 2026-08-11. Questions, or anything here you need to act on: michael@resignal.net.

What Humber tells you

Whether a person completed a one-time-code check on a phone number and paid the annual fee. It is not an identity check, a background check, or a fraud score. A verified number means someone proved control of that line — nothing more.

What it does not tell you

An unverified number is not evidence of wrongdoing. Almost every number is unverified. Do not treat the absence of an attestation as a signal about a person.

A verified number does not tell you who holds it today. Numbers get reassigned by carriers, ported between people, and taken over by SIM swap. The person who verified a number last year may not be the person holding it now.

Who can use Humber

You need to be 18 or older, and the number you verify has to be one you control. Humber is not for children and we don’t knowingly verify a number for anyone under 18. If you’re verifying on behalf of a company, you’re confirming you’re allowed to agree to these terms for it. Humber currently supports US and Canadian numbers only.

What you agree not to do

Verify only a number you actually control. Don’t verify someone else’s.

Humber is for occasional personal use, subject to a daily limit. Don’t query it in bulk, don’t script it, don’t work around the daily limit, and don’t resell, republish, or redistribute what it tells you.

Don’t use Humber to decide anything about a person’s eligibility. Not for hiring, not for renting, not for credit, insurance, or benefits. Humber is not a background check and it is not a consumer report. If a decision like that is being made, use a service built and licensed for it.

Don’t use Humber to break the law, and don’t use it to harass anyone.

Billing

An attestation costs $5 for twelve months, and it renews automatically each year at $5 until you cancel. We charge the card you gave us, without asking again, on the renewal date. You can always see your renewal date and cancel from My number.

Cancelling and refunds

You can cancel any time from your account, free. Cancelling stops the renewal — you won’t be charged again — and your number keeps answering yes through the end of the year you already paid for, then lapses.

If you’d rather switch it off straight away, revoke instead. Revoking ends the attestation immediately, and we don’t refund the unused part of the year.

If you no longer have the number and can’t receive a code, you can still stop the renewal at humber.fyi/cancel using the number and the last four digits of the card being charged. Or email michael@resignal.net with the number and those four digits, and we’ll stop it for you.

Either way, if we get something wrong — a double charge, or a charge after you cancelled — email us and we’ll fix it.

Publishing to a public chain

Humber is built to publish each attestation — a keyed fingerprint of the number, its status, and its expiry — to a public blockchain, so anyone can check the answer without trusting us. That is not switched on yet. When it is, a record published there is permanent and cannot be deleted, including after you revoke. The record contains no phone number and no name. By verifying a number you agree that this record may be published.

When we can switch an attestation off

We can suspend or revoke an attestation, or block access to Humber, if we reasonably believe: the number was verified by someone who doesn’t control it, the line has been taken over, the payment behind it was reversed or disputed, someone is querying in bulk or working around the daily limit, or these terms are being broken.

Where it’s practical and wouldn’t make things worse, we’ll say why. If we revoke an active attestation for a reason that turns out to be our mistake, we’ll reinstate it or refund that year — your choice.

If we stop running Humber

If we shut Humber down, we’ll say so on the site, stop charging, and refund the unused part of any year you’ve already paid for.

What we promise, and what we don’t

Humber is provided as it is and as it happens to be running when you use it. We don’t promise it will be available, uninterrupted, timely, or free of errors, and we don’t promise any particular result from using it.

An attestation means one thing: at some point in the past, someone passed a one-time-code check on that number and paid the fee. It is not a statement about who that person is, whether they still control the number today, or whether they can be trusted. If you are making a decision that matters, do not make it on this alone.

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, HUMBER AND THE SERVICES ARE PROVIDED “AS IS” AND “AS AVAILABLE” WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, ACCURACY, OR NON-INFRINGEMENT.

If something goes wrong

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, RESIGNAL, INC. SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL OR PUNITIVE DAMAGES, RELIANCE DAMAGES, OR ANY LOSS OF PROFITS, REVENUES, DATA, GOODWILL, OR OTHER INTANGIBLE LOSSES, RESULTING FROM (i) YOUR ACCESS TO, USE OF, OR INABILITY TO USE HUMBER; (ii) ANY RELIANCE PLACED ON A HUMBER RESULT, BY YOU OR BY ANYONE YOU SHARE IT WITH; (iii) ANY REASSIGNMENT, PORTING, OR TAKEOVER OF A PHONE NUMBER AFTER IT WAS VERIFIED; OR (iv) UNAUTHORIZED ACCESS TO OR ALTERATION OF YOUR DATA. IN NO EVENT SHALL OUR AGGREGATE LIABILITY EXCEED THE GREATER OF ONE HUNDRED U.S. DOLLARS (U.S. $100.00) OR THE AMOUNT YOU PAID US IN THE TWELVE MONTHS BEFORE THE CLAIM. THESE LIMITATIONS APPLY TO ANY THEORY OF LIABILITY, WHETHER BASED ON WARRANTY, CONTRACT, STATUTE, TORT (INCLUDING NEGLIGENCE) OR OTHERWISE, WHETHER OR NOT WE HAVE BEEN INFORMED OF THE POSSIBILITY OF SUCH DAMAGE, AND EVEN IF A REMEDY SET FORTH HERE IS FOUND TO HAVE FAILED OF ITS ESSENTIAL PURPOSE. IF ANY PORTION OF THIS SECTION IS DEEMED UNENFORCEABLE, THAT LIMITATION SHALL INSTEAD BE THE GREATEST LIMITATION PERMITTED BY LAW.

None of this applies to our own fraud, willful misconduct, or gross negligence; to death or personal injury we cause; or to anything the law does not let us limit — including, in California, liability for violation of law whether willful or negligent (Civil Code § 1668) and any claim under the Consumers Legal Remedies Act; in Massachusetts, any claim under Chapter 93A; and in Colorado, any claim under the Colorado Consumer Protection Act. Where a state does not allow one of these limits, that limit does not apply to you, and the rest of this section still does.

If you cause a problem for someone else

If someone brings a claim against us because of how you used Humber, you’ll cover our reasonable costs of dealing with it, including legal fees. This is meant for a specific list of things: querying in bulk or with automated tools, working around the daily limit, reselling or redistributing results, verifying a number you don’t control, using Humber in a way these terms or the law forbid, and any claim by someone who relied on what you told them about a Humber result.

We’ll tell you promptly if a claim like that arrives, and you can take over the defense with a lawyer we reasonably agree to. We won’t settle anything you’d have to pay for without asking you first.

Settling disputes without a court

Most problems get sorted out by email, so start there. Write to michael@resignal.net and give us 30 days to put it right. Nearly everything ends here.

If it doesn’t, you and RESignal, Inc. agree to settle the dispute by binding individual arbitration rather than in court, run by the American Arbitration Association under its Consumer Arbitration Rules. Arbitration is less formal than court: there’s no judge and no jury, and a neutral arbitrator decides. This binds us exactly as it binds you.

The Federal Arbitration Act governs this section, including whether a dispute has to be arbitrated. The arbitrator decides everything about a dispute, including whether these terms cover it — with one exception. Whether the “No class actions” paragraph below can be enforced is for a court to decide, not an arbitrator. Either of us can go to court for that one question.

We pay for it. For any claim under $10,000 we’ll pay the AAA filing, administration, and arbitrator fees. You can have it decided on documents alone, by phone, or in person near where you live. The arbitrator can award anything a court could award to you individually, including costs and attorney’s fees where a law provides for them.

If the AAA won’t take the case, for any reason, we’ll agree on another established arbitration provider together. If we can’t agree within 30 days, either of us can ask a court in Denver to appoint one under section 5 of the Federal Arbitration Act. The arbitration doesn’t fail just because an administrator is unavailable.

Small claims still work. Either of us can bring an individual claim in small-claims court instead, if it qualifies — and you can bring it where you live. The Denver courts named below don’t apply to small claims.

No class actions. Arbitration here is individual only. Neither of us consents to class, collective, consolidated, or representative arbitration under any circumstances, and no arbitrator has authority to conduct one or to award anything to someone who isn’t a party. If a court decides this paragraph can’t be enforced as to a particular claim or request for relief, that claim or request leaves arbitration and goes to the courts named below, and everything else stays in arbitration. Nothing that happens to this paragraph puts a class proceeding in front of an arbitrator.

If 25 or more similar claims are filed against us by the same lawyers or in a coordinated way, they’ll be handled in batches of no more than 25 at a time. The first batch is decided, and we use the outcome to try to resolve the rest before more are filed. Any deadline for bringing a claim is paused for anyone waiting in a later batch.

Nothing here stops you seeking public injunctive relief in court where the law gives you that right. If a court has to hear a request like that, it waits until the arbitration of everything else is finished.

You can opt out. If you don’t want any of this, email michael@resignal.net within 30 days of first agreeing to these terms and say so — include the phone number you verified, in full, so we can match it. Opting out costs nothing and changes nothing else; your attestation works exactly the same. If you opt out, disputes go to the courts named below.

This section keeps applying after your attestation ends, however it ends.

Where disputes go

These terms are governed by the laws of the State of Colorado, without regard to its conflict-of-laws rules. Any dispute that isn’t handled by arbitration has to be brought in the state or federal courts located in Denver, Colorado, and we both agree those courts have jurisdiction over us.

If you live somewhere whose consumer-protection laws give you rights you can’t sign away, this doesn’t take those away from you.

Changes to these terms

We may update these terms, and when we do we’ll change the version at the top of this page. If a change is significant — the price, how disputes get settled, or anything that meaningfully reduces what you get — it won’t apply to you until your next renewal, and you can cancel before then if you don’t like it. We give notice by posting here; that is the only channel we have, because we don’t collect an email address.

The rest

If any part of these terms turns out to be unenforceable, the rest still applies and that part is narrowed only as far as it has to be — except in the “No class actions” paragraph, which says what happens there. If we don’t enforce something straight away, we haven’t given it up. You can’t transfer your rights under these terms to someone else; we may transfer ours if the business is sold, and your attestation and these terms carry over. The sections on arbitration, liability, indemnity, and what you agree not to do survive after your attestation ends.

These terms and our Privacy Policy are the whole agreement between you and us about Humber, and they replace anything said earlier.