Your CRM is rotting right now, quietly, while nobody watches it. Contacts change carriers, disconnect lines, and port numbers to new providers, and none of that sends you a notification. Industry estimates put 20-30% of phone records in a typical CRM as inaccurate within a year. For any team that picks up the phone or sends an SMS, that’s wasted calls, messages that never land, and reports built on numbers that stopped being true months ago. The longer it sits, the worse it gets.
Phone validation is how you stop the bleed. It checks numbers against current carrier data and hands back line type, deliverability, and carrier for every contact, so your database reflects reality instead of last year’s snapshot.
What bad phone data actually costs
The damage isn’t abstract, and it isn’t confined to one team:
- Sales reps burn 15-20% of their calling time on disconnected numbers, wrong numbers, and landlines nobody answers. Add that up across a week and it’s real hours spent dialing contacts who were never going to convert.
- Marketing pays twice for invalid numbers: once in spent budget, once in sender reputation. A high enough bounce rate trips carrier filtering, and now your deliverability problem isn’t limited to the bad numbers.
- Support places outbound calls to stale numbers, opening tickets that bounce between teams and resolve nothing.
- Operations can’t segment, forecast, or report cleanly when the underlying data is wrong. Every dashboard inherits the error.
Three places to validate
On import
Validate every number the moment a contact enters the CRM. Flag or reject anything invalid, disconnected, or landline if SMS is your primary channel. Catching it here is the cheapest fix, because the bad record never gets to spread through your workflows.
On a schedule
Run a batch revalidation monthly or quarterly. Status changes constantly: a number that answered fine six months ago may be dead today. Regular sweeps catch the decay before a rep wastes an afternoon on it. This is the step most teams skip, and it’s the one that does the most to keep a database from drifting.
At the point of update
When a contact gives you a new number through a form, a portal, or a support call, validate it in real time before it hits the CRM. Don’t trust a freshly typed number any more than an old one.
What each validated record gains
A lookup through the CheckThatPhone API lets you enrich every record with:
- Line type: mobile, landline, or VoIP, which tells you which channels are even viable
- Carrier: the current operator, useful for routing and segmentation
- Deliverability: whether the number can take a call or SMS right now
- Porting status: whether the number has moved between carriers
- Timezone: the contact’s local time from GeoIP or area code, so you call at a sane hour
That last field is underrated. Calling a contact at 7am their time because your CRM assumed your timezone is a fast way to get marked as spam in their head.
Wiring it into your stack
Most CRMs give you a webhook or API path for enrichment:
- Salesforce or HubSpot: trigger validation on lead creation or update through workflow automation
- Custom CRM: call the API from your backend when a record is created or changed
- Batch processing: export the list, validate through the API, re-import with the enriched fields
Where to start
Clean CRM data is a habit, not a project you finish. The biggest single win is usually the scheduled sweep, because that’s the decay nobody else is watching for. Set that up first, then add validation on import and on update so fresh bad data stops getting in. The API documentation covers the integration paths, and the pricing plans are sized by database volume if you want to match a tier to yours.