Carrier Fence Blog
Guides on DNC scrubbing & TCPA compliance
Practical, plain-language guides for keeping your outbound call lists clean.

UK Cold Calling Rules: TPS, CTPS and PECR Explained
Who you can cold call in the UK, how to screen against the TPS and CTPS, recorded-call consent, sector bans, caller ID and Ofcom's abandoned-call rules.
Read more
Is This a Cell Phone or Landline? How to Tell
How to check whether a US number is mobile, landline, VoIP or pager, why lookups can be wrong after porting, and why line type matters for the TCPA.
Read more
Florida Telephone Solicitation Act (FTSA): 2026 Guide
Florida's mini-TCPA explained: written consent, 8 p.m. cut-off, the three-calls-a-day rule, the 2023 changes and the Florida DNC list.
Read more
Canada DNCL Rules: Telemarketing in Canada Explained
Canada's National Do Not Call List: registration, calling hours, internal lists, exemptions, CASL for texts and penalties, compared with the US.
Read more
Free Reverse Phone Lookup: What You Can Really Find
What a free reverse phone lookup can tell you — location, line type, carrier and spam reports — what costs money, and the legal limits.
Read more
VICIdial DNC List Setup: Internal & Campaign DNC Guide
How VICIdial's internal and campaign DNC lists work, how to enable and load them, and why you should still scrub leads before loading.
Read more
TCPA Compliance for Offshore Call Centers: Complete Guide
US calling laws apply to every call into the US. How offshore call centers handle DNC scrubbing, consent, time zones, caller ID and client audits.
Read more
How to Check if a Phone Number Is Active (6 Methods)
Six ways to tell whether a US phone number is valid, assigned, in service or reassigned, and how to check one number or a whole list.
Read more
How to Check if a Number Is on the Do Not Call List
How consumers verify a DNC registration and how businesses check numbers against federal, state, internal and litigator lists, step by step.
Read more
Medicare AEP Call Rules: Compliance Guide for Agents
CMS marketing rules plus TCPA and Do Not Call: no cold calls, the 48-hour SOA rule, the TPMO disclaimer and call recording, explained for AEP.
Read more
Political Robocall & Texting Rules: TCPA Guide for 2026
Are political calls exempt from the Do Not Call list? What the TCPA allows for campaign robocalls, AI voices and texts, with a pre-launch checklist.
Read more
What Should DNC Scrubbing Cost? A 2026 Price Breakdown
DNC scrubbing should cost a fraction of a cent per number. Here's a realistic breakdown of pricing models and what to actually pay.
Read more
How to Choose a DNC Scrubbing Service: 7 Things to Check
Not all scrubbing services are equal. Here are seven concrete things to check — coverage, freshness, pricing, records — before you commit.
Read more
Predictive Dialers and the TCPA After Facebook v. Duguid
The Supreme Court narrowed what counts as an autodialer, but predictive dialers aren't automatically safe. Here's where they stand now.
Read more
TCPA Vicarious Liability: When You're Liable for Your Vendor's Calls
Hiring a vendor to make your calls doesn't move the risk to them. Here's how vicarious liability makes you responsible for calls you didn't place.
Read more
Can You Cure a TCPA Violation After the Fact?
Once a non-compliant call is made, can you fix it? Mostly no — here's what limited remedies exist and why prevention is the only real strategy.
Read more
Do TCPA Rules Apply to International Calls?
The TCPA is a US law, but that doesn't mean overseas call centers are safe. Here's how jurisdiction actually works for cross-border calling.
Read more
How Often Does the National DNC Registry Update?
The registry changes daily, and your last scrub goes stale faster than you think. Here's how registry updates work and what cadence keeps you compliant.
Read more
Integrating DNC Scrubbing Into Your Dialer via API
Manual uploads don't scale. Here's how to wire DNC and honeypot scrubbing directly into your dialer or CRM with a simple REST API.
Read more
TCPA Compliance for Healthcare Calls
Healthcare gets some TCPA leeway for treatment-related calls — but not for marketing. Here's where the line sits and how to stay on the right side of it.
Read more
TCPA Compliance for Debt Collectors
Debt collection sits under both the TCPA and the FDCPA. Here's how the two interact and why reassigned numbers are a collector's biggest trap.
Read more
TCPA Compliance for Solar Companies
Solar is one of the most TCPA-litigated verticals. Here's why, and the specific scrubbing and consent discipline solar dialers need.
Read more
TCPA Compliance for Bought Leads: The Consent Chain
Purchased leads carry someone else's consent — or none at all. Here's how to vet the consent chain before you dial a list you didn't collect.
Read more
The FCC One-to-One Consent Rule, Explained
The FCC moved to require consent be given to one identified seller at a time. Here's what one-to-one consent means for lead buyers and generators.
Read more
How to Register Your Numbers to Avoid Spam Labels
Number registration is the single highest-value step for answer rates. Here's what it is, where to do it, and why it works.
Read more
What Is STIR/SHAKEN and Why It Affects Your Calls
STIR/SHAKEN is the call-authentication framework deciding whether your calls get through or get labeled. Here's what it is and how to stay on the right side of it.
Read more
Who Is Exempt From the Do Not Call Rules?
Not every call is covered by the DNC rules. Here are the real exemptions — and why most businesses lean on them far more than the law allows.
Read more
How TCPA Class Action Lawsuits Work
Because damages attach per call, TCPA class actions can reach seven or eight figures. Here's how they form and why one unscrubbed campaign is enough.
Read more
What Is a TCPA Demand Letter and How Should You Respond?
A demand letter is usually the first sign of a TCPA problem. Here's what one looks like, why you shouldn't ignore it, and the realistic paths forward.
Read more
DNC Scrubbing for SMS and Text Message Campaigns
Texting a wrong number under the TCPA costs the same as calling it. Here's why SMS campaigns need the same DNC scrubbing as voice, and how to do it.
Read more
How Consumers Revoke TCPA Consent — and What You Must Do
A consumer can withdraw consent at any time, by any reasonable means. Here's how revocation works and how to honor it fast enough to stay compliant.
Read more
Area Codes and Time Zones: Getting Calling Hours Right
An area code tells you where a number lives, and that decides when you can legally call it. How to map numbers to time zones, and the traps to watch for.
Read more
What Actually Happens If You Call a Number on the DNC List?
From complaint to lawsuit to enforcement action: the realistic sequence of events after a call to a registered number, and where it usually stops.
Read more
How to Check if an Email Address Is Real Before You Send
Typos, dead domains and throwaway inboxes quietly wreck deliverability. Here's how to check an email address for free before it ever hits your list.
Read more
Is Ringless Voicemail Legal Under the TCPA?
Ringless voicemail was pitched as a way around the TCPA. Regulators and courts have largely disagreed. Here's where it stands.
Read more
How to Check if a Phone Number Is Spam (Free, in Seconds)
Got a call from a number you don't know? Here's how to tell whether it's been reported as spam or a robocall, and what the reports actually mean.
Read more
Your Internal Do Not Call List: What It Is and Why It's Required
The federal registry isn't the only list you have to honour. Every calling operation needs its own internal DNC list, and the rules around it are specific.
Read more
How Long Do You Have to Keep Your DNC and Consent Records?
Scrubbing only protects you if you can prove you did it. Here's what records to keep, for how long, and what a defensible audit trail looks like.
Read more
TCPA vs. Telemarketing Sales Rule: Key Differences
The TCPA and the TSR overlap but are enforced by different agencies with different penalties. Here's what each one actually requires of you.
Read more
Do B2B Cold Calls Need Consent? What the Rules Actually Say
Business-to-business calling is treated differently from consumer calling, but the exemptions are narrower than most sales teams assume.
Read more
Why Your Calls Show Up as "Spam Likely" (and How to Fix It)
Carrier call labelling is separate from the TCPA and can kill your answer rate on its own. Here's what triggers it and what actually clears it.
Read more
A TCPA Compliance Checklist for Outbound Calling Teams
A practical, step-by-step checklist covering consent, scrubbing, calling hours, opt-outs, and the records you need if anyone asks.
Read more
Which States Have Their Own Do Not Call List?
Several states run registries separate from the federal one, each with its own rules. Here's who maintains a state list and what that means for a national campaign.
Read more
Reassigned Numbers Database: What It Is and When to Check
Consent doesn't transfer when a number changes hands. Here's what the FCC's Reassigned Numbers Database does and how its safe harbour works.
Read more
Reading a Scrub Report: What Every Field Actually Means
A scrub report is only useful if you know what you're looking at. Here's a field-by-field walkthrough of what a good report should tell you.
Read more
How Often Should You Re-Scrub a Call List? A Practical Answer
"Scrub before every campaign" is the right rule, but real workflows need something more concrete. Here's how to actually schedule it.
Read more
Real Estate & Insurance Cold Calling: Industry-Specific TCPA Risks
Real estate and insurance are two of the most litigated verticals under the TCPA. Here's why, and what it means for how you should be scrubbing.
Read more
TCPA Safe Harbor: What It Covers and What It Doesn't
There's a limited safe harbor for good-faith DNC compliance errors. Here's exactly what it covers, and the much longer list of things it doesn't.
Read more
Wireless vs. Landline Numbers: Why the TCPA Treats Them Differently
The TCPA is noticeably stricter about calls to wireless numbers. Here's why that distinction exists and why it matters for your dial list.
Read more
How to Handle Opt-Out Requests the Right Way
Getting an opt-out request is routine. Mishandling it is one of the fastest ways to turn a minor complaint into a real claim.
Read more
TCPA Rules for Text Messages: Is SMS Marketing Different From Calls?
Text messages fall under the same statute as calls, but the practical risks play out differently. Here's what changes and what doesn't.
Read more
Established Business Relationship (EBR) Exemption Explained
An existing customer relationship can change what calls are permitted — but the exemption is narrower, and shorter-lived, than most teams assume.
Read more
What Hours Can You Legally Call Under the TCPA?
The TCPA restricts what time of day you can call consumers. Here's the rule, the timezone trap that catches national campaigns, and how it interacts with state law.
Read more
What Counts as an Autodialer Under the TCPA After Facebook v. Duguid
The Supreme Court narrowed the legal definition of an autodialer in 2021. Here's what that actually changed — and what it didn't.
Read more
DNC vs. Honeypot vs. Litigator Numbers: A Quick Comparison Guide
Three different risk categories, three different data sources. Here's a side-by-side breakdown of what each one actually catches.
Read more
Common Mistakes That Get a "Clean" Call List Flagged Anyway
Scrubbing once isn't the same as staying compliant. Here are the most common gaps that let flagged numbers back onto a dial list.
Read more
Building a Compliant Outbound Calling Workflow: Where Scrubbing Fits
A practical outline of where DNC and honeypot scrubbing should sit in your calling pipeline, from list acquisition to dial.
Read more
How Much Does a TCPA Violation Cost? Damages Explained
TCPA damages are per call, not per lawsuit. Here's how the $500–$1,500 statutory range adds up faster than most teams expect.
Read more
TCPA Prior Express Consent vs. Prior Express Written Consent
Not all consent is equal under the TCPA. Here's the difference between the consent types, and why it changes what you're allowed to call about.
Read more
How to Scrub a Call List Before a Campaign: Step by Step
A practical checklist for cleaning a call list before you dial — from formatting your file to reading a scrub report.
Read more
Honeypot Numbers Explained: How They Catch Illegal Telemarketers
Honeypot numbers are planted specifically to record unsolicited calls as lawsuit evidence. Here's how they work and how to keep them off your dial list.
Read more
What Is a TCPA Litigator List? Avoiding Serial Plaintiffs
A small number of serial TCPA plaintiffs file a disproportionate share of lawsuits. Here's what a litigator list is and how scrubbing against one reduces your risk.
Read more
Federal vs. State DNC Lists: Differences and Why Both Matter
The National DNC Registry only covers part of your exposure. Here's how federal and state Do Not Call lists differ, and why scrubbing against both matters.
Read more
What Is DNC Scrubbing? A Complete Guide for Outbound Call Centers
How DNC scrubbing works, why it's required before any outbound call campaign, and how to build it into your dialing workflow.
Read more