Every feature in PhoneValidator is designed to answer one question for marketing teams and call centres: is this number worth contacting? Here is what you get with every validation credit.
Complete Feature List
Active Status Check
Queries carrier databases in real time to confirm whether a number is currently assigned and in service. Disconnected and recycled numbers are flagged immediately — removing the single biggest source of wasted calls, SMS bounces, and blown campaign budget.
Line Type Detection — Mobile, Landline, VoIP, Toll-Free, Prepaid
Classifies every number by line type. This is the most actionable piece of data for marketing workflows:
- Mobile — SMS-eligible, autodialer-eligible with consent
- Landline — voice-only, no SMS; route to human-dialed call centre queue
- VoIP — review before including; disproportionate overlap with fraudulent lead submissions
- Toll-Free — typically business numbers; classify separately in your contact strategy
- Prepaid — pre-paid mobile; SMS-eligible but often lower LTV in consumer contexts
Carrier Lookup & Number Portability Detection
Returns the current carrier holding the number and flags numbers that have been ported from their original carrier. Carrier data helps diagnose SMS delivery failures, and portability detection catches numbers that appear “mobile” on their area code but have actually ported to a VoIP or landline provider.
Federal DNC Registry Screening
Real-time check against the FTC Federal Do Not Call Registry. Returns a simple dnc: true/false flag that you can use in CRM field mapping, automated suppression lists, or campaign filters. Integrate DNC screening at lead capture to prevent non-contactable numbers from ever entering your pipeline.
Geographic Data — City, State, ZIP, Time Zone
Returns city, state, ZIP code, and IANA time zone for each number. Use this data to:
- Build geo-targeted campaign segments without separate enrichment tools
- Schedule outbound calls within permitted hours using the time zone field
- Apply regional offers and pricing based on state data
- Validate that the phone number’s area code matches the stated address (fraud signal)
REST API — JSON, Under 1 Second
POST endpoint authenticated with key and secret. JSON response. No OAuth, no SDKs required. Integrates into any platform that can make an HTTPS call — landing pages, CRM workflows, outbound dialers, SMS platforms. Documented examples in PHP, Python, JavaScript, Java, .NET, Ruby, and Go.
Bulk CSV Batch Processing
Upload a CSV with up to 50,000 phone numbers. All validation fields are appended to your file and returned as a download. Use this for pre-campaign list cleaning, CRM imports, and periodic hygiene passes on your full contact database — no code required.
Credit Balance API
Monitor your account balance programmatically. Integrate into your CI/CD pipeline or campaign automation to alert when credits fall below a safe threshold — preventing validation workflows from stopping mid-campaign.
Usage Analytics Dashboard
Track validation volume by day and month. Monitor your credit consumption rate to forecast when you need to purchase additional credits and reconcile API usage against marketing calendar activity.
Every Feature. 1,000 Free Credits.
No subscription. No credit card. Full feature access from the moment you sign up.