Comparison
NumberBroom vs. The Blacklist Alliance
How is NumberBroom different from The Blacklist Alliance?
Short answerThe Blacklist Alliance, acquired by Sonera in September 2026, sells a broader compliance platform: litigator screening plus, per its own site, federal and state DNC scrubbing. You pay for it ahead of time, in a prepaid block of scrubs or a monthly subscription, and every pricing page is marked noindex, nofollow. NumberBroom charges per list, with nothing up front: no block to buy, no subscription, and a free 20-row preview before you pay $0.20 per number for the first 2,000 rows, $5 minimum. NumberBroom runs carrier validation and TCPA litigator screening on a CSV, scrubs no state DNC list, and checks the federal registry only under your own SAN, on lists of up to 1,000 numbers.
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On this page
The Blacklist Alliance is one of the three vendors practitioners name by default when asked how to scrub a list, alongside DNC.com and TCPA Litigator List. Its homepage names DNC.com, Gryphon and PossibleNOW directly as the field it's positioned against, and claims roughly 1,000 clients. As of September 2026 it also has a new owner: Sonera, the company DNC.com itself became part of in July, announced the acquisition on September 9. What it still doesn't do is make its own pricing easy to find.
Pricing: prepaid scrubs against paying per list
| Blacklist Alliance | NumberBroom | |
|---|---|---|
| Pricing model | Prepaid: one-time scrub blocks or a monthly subscription | Pay as you go, per list |
| One-time purchase | Scrub blocks, 10,000 to 500,000 scrubs | One list, 10,000 rows per upload |
| Subscription | 11 monthly plans listed, each with a scrub allowance | None |
| Price on an indexed page | No -- every pricing page is noindex, nofollow | Yes: $0.20/number to 2,000 rows, $0.16 to 5,000, $0.08 to 10,000, $5 minimum |
| Try before you pay | Book a demo | Free 20-row preview, guest checkout |
| DNC registry scrubbing | Yes, federal and state, per its site | Federal only, your own SAN, lists up to 1,000; state: No |
The difference is when you pay. Blacklist Alliance sells scrubs ahead of time, in a block or a monthly plan. NumberBroom charges for the list in front of you, after a free 20-row preview.
What each one actually checks
These two products no longer overlap as neatly as a litigator-scrub comparison suggests. Blacklist Alliance's site now describes a platform covering litigator screening, federal and state DNC scrubbing, a litigation firewall inside your dialer and caller-ID reputation. Its subscription pages cover the Litigation Firewall "and/or" government DNC registries, while its one-time scrub blocks name only the Litigation Firewall, so confirm which checks a block includes before assuming it replaces a registry scrub.
NumberBroom does less, and says so. It scrubs no state list, and checks the federal registry only for a signed-in customer under their own SAN, on lists of up to 1,000 numbers. It runs carrier validation and TCPA litigator screening on an uploaded CSV. The file you get back keeps only the rows that passed, with line_type, carrier, activity_score and scrub_status appended. Litigator matches are removed rather than flagged in a column, and come back in a file of their own, and each job gets a Record of compliance screening. If your obligation is the full registry, state lists included, you need a registry vendor, and Blacklist Alliance is one of them.
Why noindex a pricing page?
There are legitimate reasons a company keeps pricing out of search -- controlling how a number gets framed for a first-time visitor, avoiding a stale price lingering in a cached search result, or simply optimizing for a sales-assisted motion where a rep provides context before a number is discussed. Whatever the reason, the practical effect is that a search for "Blacklist Alliance pricing" shows none of its own pricing pages, so ask Blacklist Alliance for current figures before you compare. With a new parent company, its pricing is also worth re-checking before you rely on it; the acquisition announcement says it continues unchanged for now.
The AvR scoring approach
Worth calling out on its own merits: Blacklist Alliance's "accuracy vs. risk" feed segmentation is a genuinely different model from a binary flagged/not-flagged litigator check. If your risk tolerance varies by campaign -- more conservative for cold outbound, looser for warm follow-up -- the ability to tune which feeds you suppress against is a real capability most flat scrub tools, including this one, don't offer.
Quick check: blocks, coverage and how you pay
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Where each one fits
If you need DNC registry scrubbing alongside litigator screening, or you want graduated risk scoring and bundled legal-services hours, Blacklist Alliance's subscription tiers are built for that. If you want a straightforward litigator scrub over a whole list alongside carrier validation, up to 10,000 rows with a $5 floor, no subscription and pricing you can actually find on the page, that's NumberBroom.
Check a single number with the free carrier lookup, or see bulk pricing.
Frequently asked questions
Who owns The Blacklist Alliance now?
Sonera. A press release dated September 9, 2026, announced that Sonera, the company DNC.com and Pure CallerID formed in July 2026, acquired Blacklist Alliance along with Number Verifier, and Blacklist Alliance's homepage now carries a banner saying it is part of Sonera. The release says existing customers keep their current products, pricing and support. As of our October 8 review, Blacklist Alliance still sells under its own name, on its own site, with the pricing model described below.
How is The Blacklist Alliance priced?
In advance. Per an October 8, 2026 review of their pages, there are two ways to buy. One-time scrub blocks, from 10,000 to 500,000 scrubs, with no ongoing commitment; both block pages we read describe scrubbing against its Litigation Firewall, not the DNC registries, and the terms say scrubs do not expire. And monthly subscription plans: the site's sitemap lists 11, each with a monthly scrub allowance, covering the Litigation Firewall "and/or" government DNC registries plus extras like training seats and, on the top tiers, legal-services hours. Every one of these pages is marked noindex, nofollow, so none of it shows up in a search engine; ask them for current prices. NumberBroom has nothing to prepay: pay per list, after a free 20-row preview.
Does Blacklist Alliance scrub the DNC registry?
Its site says so. The homepage and FAQ describe scrubbing the federal Do Not Call Registry plus state lists, in real time by API or in batch, and its subscription plans cover the Litigation Firewall "and/or governmental Do-Not-Call Registries". Two details are worth checking with them before you buy. The homepage says "all" state lists while its Litigation Firewall page says "select" state registries. And the one-time scrub block pages mention only the Litigation Firewall. None of the pages we read say whether you need your own SAN. NumberBroom, for comparison, scrubs no state list at all, and its federal Do Not Call Registry check runs only under your own FTC subscription (SAN), included free on lists of up to 1,000 numbers.
Is Blacklist Alliance self-serve?
Partially. Scrub blocks and subscriptions both have direct Stripe checkout links, so in principle you can buy without talking to anyone. In practice every prominent call to action on the site is a demo booking, the checkout pages aren't linked from its main navigation, and the pricing pages are de-indexed from search.
What does Blacklist Alliance do differently from a basic litigator scrub?
Their most distinctive published claim is an "AvR" (accuracy vs. risk) scoring system -- numbers are split into feeds by a numerical risk score, and you choose which feeds to suppress against based on your own risk appetite, rather than getting one binary flagged/clean answer. That's a real methodological difference from most flat litigator databases, including ours, and worth knowing about if granular risk tuning matters for your use case.
Does NumberBroom have anything like Blacklist Alliance's legal-services hours?
No. Their top subscription tiers (reviewed October 8, 2026) bundle prepaid legal services -- four hours a year on Ultra, five on Enterprise Plus -- along with compliance consultations and Blacklist Academy training seats, positioning the product as a compliance-department platform rather than a per-job tool. NumberBroom doesn't sell legal services or training; it's a carrier-validation-plus-litigator-screening tool priced per job. If ongoing legal counsel is part of what you need, that's a genuinely different purchase than a scrubbing tool, from either vendor.