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VeraDial
Verified Caller ID

Calls signed at A-level. Not labeled Spam Likely.

Every number you buy through VeraDial is signed at A-level STIR/SHAKEN — the strongest carrier-side proof that the call is from who it says it is.

By Graham Thomson · Updated April 30, 2026

  • A-level attestation on every purchased VeraDial number
  • B-level attestation when you verify a number you already own
  • No spoofing — only numbers you control
  • Built on Twilio's trusted-calling stack
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What it does

Verified Caller ID capabilities.

A-level on purchased numbers

When VeraDial provisions you a number, it's verified end-to-end. The carrier signs every outbound call at A-level — the strongest STIR/SHAKEN attestation the framework offers.

Source: FCC call authentication

Verify a number you already own

If your business already has a number, verify it through VeraDial as a secondary outbound caller ID. Verified numbers sign at B-level — strong, but not end-to-end.

No spoofing path

VeraDial only lets you call from a number you own or have verified. There is no path to display a number you don't control. This is how trust actually compounds.

Source: CRTC caller ID spoofing

Carrier-grade infrastructure

All voice routes through Twilio's trusted-calling stack. The trust chain runs from your VeraDial line through Twilio's STIR/SHAKEN signing to the receiving carrier.

Source: Twilio STIR/SHAKEN trusted calling

Visible to recipients

On supported handsets and carriers, the receiving phone shows a verified indicator instead of Spam Likely. Display behavior depends on the receiving carrier — see the spam guide for what changes and what doesn't.

In practice

Who uses verified caller id?

Contractor calling a new lead

You picked up a number last month. The lead's carrier checks the signature, sees A-level attestation, and skips the Spam Likely label. You get answered.

Sales rep working a list

On a 50-prospect day, even a small pickup-rate lift compounds. Verified attestation isn't a bypass for cold-call filters — but it removes the easiest reason for a carrier to drop your call.

Realtor with an established number

You verify your existing number as a secondary caller ID. It signs at B-level — the carrier knows you own it, even if VeraDial didn't issue it.

FAQ

Common questions.

What's the difference between A, B, and C attestation?

A is the strongest: the originating carrier verified both the customer and the customer's right to use the number. B verifies the customer but not the specific number. C is unsigned or signed without enough info. Carriers favor A-signed calls when ranking spam likelihood.

Source: FCC call authentication

Will my calls always show as verified?

Display behavior depends on the receiving carrier. STIR/SHAKEN tells the carrier the call is trustworthy — what they show on screen is up to them. The trust signal is doing its work even if no badge appears.

Can I keep my existing business number?

Yes. Verify it as a secondary outbound caller ID and outbound calls sign at B-level. SMS still routes through your VeraDial-provisioned number for carrier compliance reasons.

What stops someone from spoofing me?

STIR/SHAKEN exists to make spoofing visible. A spoofed call signs at C-level or fails to sign — receiving carriers and apps can show that distinction. It doesn't end spoofing overnight, but it changes the math.

Source: FCC TRACED Act implementation

Why does my new number still show Spam Likely sometimes?

Even verified numbers build reputation over time. A new number with A-level attestation usually outperforms an unsigned number, but answer rates, block rates, and call volume all factor in. See the spam-likely guide for what helps.

Sources

References cited on this page