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. Its cheapest published entry point is a $300 one-time scrub block of 10,000 litigator scrubs, about $0.03 a number, 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. For a single list under 1,500 numbers that costs less than one block (1,500 numbers is $300); if you will use all 10,000 scrubs, the block is far cheaper per number. 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.
Checking a whole list? Preview 20 rows of it free →
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 9 September. What it still doesn't do is make its own pricing easy to find.
Pricing: real numbers, deliberately hidden from search
| Blacklist Alliance | NumberBroom | |
|---|---|---|
| Cheapest one-time option | $300 (10,000 Litigation Firewall scrubs) | $5 minimum |
| Effective rate | ~$0.030/number at 10,000; ~$0.0045 at 500,000 | $0.20/number to 2,000 rows, $0.16 to 5,000, $0.08 to 10,000 |
| Largest one-time purchase | 500,000 scrubs for $2,250 | 10,000 rows per upload |
| Cheapest monthly plan found | $600/month (Basic Plus) | No subscription |
| DNC registry scrubbing | Yes, federal and state, per its site | Federal only, your own SAN, lists up to 1,000; state: No |
| Pricing pages indexed by Google? | No -- marked noindex, nofollow | Yes |
| Primary site call to action | Book a demo | Upload a CSV, guest checkout |
The unit economics at scale genuinely favor Blacklist Alliance -- its 500,000-scrub block works out to under half a cent per number, well below even NumberBroom's lowest band of $0.08. The gap that matters for a smaller operator is the floor: $300 minimum spend to start at all, against a $5 minimum here, and no way to find either of its numbers without navigating directly to a page Google isn't allowed to show you.
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 and counted rather than flagged in a column, 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 "Blacklist Alliance pricing" returns no useful search result at all, which is the gap this page fills. With a new parent company, it's also a price worth re-checking before you rely on it; the acquisition announcement says pricing 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.
Where each one fits
If you need DNC registry scrubbing alongside litigator screening, you're running enough volume that a 500,000-scrub block's sub-half-cent rate matters, 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 9 September 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 14 September review, Blacklist Alliance still sells under its own name, on its own site, at the prices below.
How much does The Blacklist Alliance cost?
Per a 14 September 2026 review of their pages, the cheapest one-time option is a 10,000-scrub block for $300 -- $0.03 per number, no ongoing commitment. The 500,000-scrub block is $2,250, about $0.0045 per number. Both block pages describe scrubbing against its Litigation Firewall, not the DNC registries. Subscriptions are separate: the site's sitemap lists 11 plans, and the three we read run from Basic Plus at $600/month (100,000 scrubs) to Enterprise Plus at $6,500/month (100 million), covering the Litigation Firewall "and/or" government DNC registries plus extras like training seats. Every one of these pages is marked noindex, nofollow, so none of it shows up in a search engine.
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 14 September 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.