What a 'Clean' DID Actually Looks Like in 2026

Short answer

A "clean" DID in 2026 passes six independent checks: (1) no active spam label or elevated risk score on any of the three carrier-analytics networks (Hiya Inc. for AT&T, Transaction Network Services for Verizon, First Orion for T-Mobile); (2) a registered, entity-matched CNAM record that has propagated across the major LIDB databases; (3) STIR/SHAKEN Level A attestation from the originating carrier per 47 CFR 64.6301 (eCFR); (4) enrollment in at least one branded-calling program (Hiya Connect, TNS Enterprise Branded Calling, or First Orion INFORM); (5) a human-shaped behavioral fingerprint — moderate volume, healthy duration, business-hours pacing; and (6) a verifiable ownership lineage. Miss any one and the number is compromised even if it rings fine on your own phone.

A "clean" DID in 2026 is not just a number that has never been reported. It is a number that is registered correctly, signed with the right attestation level, scored clean across all three major analytics vendors, displays the right name to the called party, and has a behavioral fingerprint that matches a human sales agent rather than an automated dialer. Miss any one of those and the number is compromised — even if it looks fine on your own phone. This is the operational checklist.

The six pillars of a clean DID

Treat this as a scorecard. A healthy DID passes all six. A DID that fails even one is on borrowed time.

1. Reputation — clean across all three analytics vendors

The baseline. Your number must score clean on:

• Hiya Inc. (drives AT&T, Samsung native) — Hiya flagged 13.7 billion suspected spam calls in Q2 2025 alone, giving a sense of the data firehose its algorithm trains on (Hiya Global Call Threat Report).
• TNS Call Guardian (drives Verizon) — TNS's 2026 Robocall Report estimated over 125 billion unwanted calls in the last 12 months, a 62.4% YoY increase, which is why terminating carriers are pushing analytics weighting up (TNS 2026 Robocall Report).
• First Orion (drives T-Mobile) — the vendor that produces the "Scam Likely" label and operates the INFORM branded-calling program (First Orion INFORM).

"Clean" means no active label ("Spam Risk," "Scam Likely," "Potential Fraud") and no elevated risk score. Each vendor has its own scale; they are not directly comparable, but each has a binary "labeled / not labeled" state and a tier above that ("under scrutiny") which predicts future labeling.

For the full breakdown of how each vendor scores you, see Hiya, TNS, and First Orion: The Three Labeling Algorithms Killing Your Pipeline.

2. CNAM — registered and accurate

The 15-character caller-ID-name field must:

• Exist (not blank, not "Wireless Caller," not a city/state default)
• Match your legal entity name (or a recognized DBA tied to that entity)
• Propagate across the major CNAM databases, not just one — iconectiv (formerly Neustar) is the primary, but multiple aggregators host copies
• Not conflict with the name used in STIR/SHAKEN signing or branded-calling registration

Deep dive: CNAM Explained: The Registration Step Your Carrier Probably Skipped.

3. STIR/SHAKEN — Level A attestation

Your outbound calls should sign at Level A — the "full attestation" tier — not B or C. Level A requires your carrier to verifiably connect you, your entity, and this specific DID. Most agents default to Level B; many are unknowingly at Level C. The FCC's Eighth Report and Order, effective September 18, 2025, explicitly made originating providers responsible for attestation-level decisions and tightened the rules around third-party authenticators (Federal Register — Call Authentication Trust Anchor).

Full treatment: STIR/SHAKEN for Insurance Agents: A Plain-English Guide.

4. Branded calling — enrolled on at least one vendor

Branded calling (Hiya Connect, TNS Enterprise Branded Calling, First Orion INFORM) is what makes your business name and optionally logo display on the modern wireless handset layer that sits above CNAM. Not mandatory for cleanliness, but the presence of branded-calling enrollment is itself a positive reputation signal to the analytics engines. First Orion's own materials note that nearly 9 in 10 consumers say they do not answer unknown numbers — making the branded display itself a contact-rate lever, not just a trust signal (First Orion INFORM).

5. Behavioral fingerprint — human, not robot

Your dialing pattern must look like a person making sales calls, not a predictive dialer burning through a list. The algorithms look for:

• Dial-to-connect ratio. Under ~3% connect on high volume is a red flag.
• Short-hangup ratio. If most of your calls last under 6 seconds, you look abandoned.
• Dial pacing. Humans pause, breathe, talk. Predictive dialers dial in perfect intervals.
• Time-of-day distribution. Clean numbers dial during business hours. Suspicious numbers dial 24/7.
• Geographic concentration. Dialing 95% of your volume into one NPA from a different NPA looks like local-presence abuse.

Carrier-vendor guidance aligns on roughly 50–70 calls per day per DID as a safe operating band, with durations above 6 seconds on average (Caller ID Reputation — dialing practices).

6. Lineage — ownership history and number age

Every DID has a history. Before you trust a number:

• Check prior assignment. A number just released from a debt collector or survey firm inherits their reputation for 30–90 days.
• Verify number age. A brand-new number with no history can itself be a signal (fresh numbers are sometimes treated as low-trust until they establish pattern).
• Confirm single ownership. Numbers that have bounced between multiple providers in a short window score worse.

What agents are actually saying

The monthly-audit discipline is a lesson most agents learn the hard way. A long-running thread on Insurance Forums titled "Need help: Number getting flagged as spam" collects years of agents describing numbers that went from clean to labeled with no warning — and the repeated conclusion from operators who recovered was that monthly cross-carrier checks are the only way to catch the decay before it compounds (Insurance Forums thread). A BiggerPockets thread on the same issue in real estate — "Have your outbound cold call numbers been flagged as spam?" — documents the same pattern in an adjacent vertical, with operators who rotate reactively reporting worse outcomes than those who audit preventatively (BiggerPockets thread).

A scoring model you can apply

Here is a working scorecard. Assign 0–2 points per pillar. A clean DID scores 11–12. A compromised DID scores 7 or below. Anything in between is trending the wrong way.

What compromises a clean DID fastest

A clean DID does not stay clean automatically. The six failure modes we see most:

1. One bad list. A single aged, over-called lead batch can generate enough "Report Spam" taps in 48 hours to tip a low-volume DID. TNS survey data shows 43% of US respondents filed robocall complaints with a government agency in the prior year — the complaint pipeline is always live (TNS 2026 Robocall Report).
2. Forgotten registration renewal. Some branded-calling registrations lapse. Lapse equals silent demotion.
3. Entity rename mismatch. You rename your LLC or add a DBA, and suddenly your CNAM, STIR/SHAKEN signing, and branded-calling identity are all slightly different. Algorithms interpret the mismatch as suspicious.
4. New producer joins, inherits a number with a bad history. Old baggage becomes new problem.
5. Switching dialers. Some dialers introduce pacing artifacts that re-flag cleaned numbers.
6. Port event. Any time a number changes carriers, its reputation can reset or degrade depending on how the new carrier attests ownership.

The monthly audit cadence

In 2026, "set it and forget it" is not available for DID reputation. A realistic cadence for a small-to-mid agency:

Weekly:

• Spot-check your top 20% of DIDs (the ones driving the most volume) across all three carriers.

Monthly:

• Full audit of every active DID.
• Review branded-calling registration status.
• Reconcile CNAM records.

Quarterly:

• Entity-identity consistency check across CNAM, STIR/SHAKEN, and branded calling.
• Rotate the oldest 10% of your DID pool regardless of score (preventative).

Annually:

• Renew branded-calling enrollments.
• Re-verify carrier attestation level in writing.
• Review Robocall Mitigation Database filings for your carrier on the FCC's public RMD (FCC Call Authentication).

For the deliverability math that makes this worth doing, see Why Insurance Agents Have the Worst Contact Rates in B2C Sales.

What a clean DID looks like in practice

A specific illustrative profile of a clean insurance agent DID in 2026:

• Number: Dedicated DID (not shared pool)
• CNAM: "SMITH INS AGCY" (15 chars, matches LLC)
• STIR/SHAKEN: Level A, attested via primary VoIP carrier
• Registrations: Hiya Connect active, TNS Branded active, First Orion INFORM active
• Reputation scores: Clean on all three as of latest check
• Behavioral fingerprint: 60–120 dials/day, 8% connect, 45s average connected-call duration, dialing 8am–6pm local
• Lineage: In service 14 months, single owner, no ownership changes
• Monitoring: Weekly cross-carrier reputation checks, monthly full audit

That profile connects at roughly twice the rate of a typical unchecked agent DID — not because the algorithms favor it, but because nothing is suppressing it.

What it costs to maintain

Honest ballpark for a 40-DID agency in 2026:

Against a 2x improvement in contact rate, the math is not close.

FAQ

Q: How do I check if my DID is clean right now? A: Cross-carrier check from a phone on each of AT&T, Verizon, and T-Mobile. For a pooled check across many numbers at once, run the free LineAudit scan.

Q: How often should I run a DID health audit? A: Weekly spot-checks on your highest-volume DIDs, full monthly audits of your entire pool, and quarterly entity-consistency reviews across CNAM, STIR/SHAKEN signing identity, and branded-calling registrations. Reputation decays continuously; a monthly cadence is the minimum realistic discipline.

Q: If a DID is clean today, how long will it stay clean? A: Depends entirely on behavior. A DID dialing 500/day with a 2% pickup will flag inside a week. A DID dialing 80/day with an 8% pickup and no consumer complaints can stay clean indefinitely.

Q: Should I rotate numbers preventatively? A: Rotate the oldest ~10% of your pool quarterly, yes. Do not rotate reactively after a flag without remediation — you just waste numbers. Carrier-analytics guidance is explicit that aggressive rotation without branded-calling registration is itself a negative signal.

Q: Is there a "perfect" DID score? A: There is no universal score. Each vendor has its own scale. Cleanliness is the combination of no active labels plus healthy underlying signals.

Q: Does volume alone flag a number? A: Volume combined with low pickup and short call duration flags a number. Volume alone does not — high-volume legitimate business lines (customer service inbound, for example) are fine.

Q: Can my own employees' spam-report taps hurt my number? A: Technically yes, though the algorithms dedupe obvious internal patterns. More realistically: train your team not to test numbers by calling them from their personal phone and hitting the spam-report button.

Q: If I switch carriers, do my registrations transfer? A: CNAM transfers (it is tied to the number, not the carrier). Branded-calling registrations often require re-attestation because carrier-of-record changes. STIR/SHAKEN attestation is re-established at the new carrier, and the FCC's Eighth Report and Order made that attestation decision non-delegable for the new originating provider (Federal Register 2025).

Q: What is the minimum I can get away with if I only have budget for one branded-calling program? A: Pick the vendor tied to the carrier where your contact rate is weakest. For most insurance agencies dialing US consumers, that is First Orion (T-Mobile) because Scam Likely is the most visible and aggressive label. Hiya Connect is a reasonable second choice because of Samsung native-dialer coverage. TNS (Verizon) tends to be the highest lift to enroll.

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