Phone Intelligence
The most comprehensive phone validation platform with real-time carrier data, fraud scoring, and DNC compliance checks. Stop fraud before it costs you money.
99.97%
Accuracy
287ms
Response Time
FCC
Data Source
Comprehensive Phone Intelligence
Everything you need to validate, verify, and protect against fraud
Real-time Validation
Instant verification of phone number validity and line status
Carrier Intelligence
Current carrier, OCN, and network type identification
Porting Information
LRN data and porting history for accurate routing
Fraud Scoring
Advanced 0-100 risk scoring with 50+ indicators
Proven Results Across Industries
E-commerce Fraud Prevention
Block 71% more fraudulent orders by validating phone numbers at checkout
71% fraud reduction
Lead Qualification
Instantly verify lead quality and prioritize high-value prospects
40% better conversion
SMS Marketing Compliance
Ensure TCPA compliance with DNC registry checks
Avoid $43K fines
2FA Security
Verify phone numbers before sending authentication codes
98% delivery rate
Simple, Powerful API
Get comprehensive phone intelligence with a single API call
// Phone validation with fraud intelligence
const response = await fetch('https://api.1lookup.io/v1/validate/phone', {
method: 'POST',
headers: {
'Authorization': 'Bearer YOUR_API_KEY',
'Content-Type': 'application/json'
},
body: JSON.stringify({
phone: '+14155552671',
country: 'US',
include_fraud_score: true
})
})
// Response in 287ms
{
"number": "4155552671",
"lrn": "4155551000",
"port_type": 0,
"state": "CA",
"network": "Verizon Wireless",
"ocn": "6006",
"ratecenter": "SAN FRANCISCO",
"class": 1,
"lata": "722",
"country": "US",
"reachable": 1,
"reason": "active",
"dnc": 0,
"good": 1,
"dno": 0,
"fraud_score": 15,
"fraud_reasons": [
"established_carrier",
"no_recent_ports",
"valid_geographic_match"
],
"risk_level": "low",
"line_type": "mobile",
"activated_date": "2019-03-15",
"last_ported": null,
"sim_swap_risk": false,
"delay": 0.001847,
"tokens_used": 3
}Technical Specifications
Coverage
US numbers only
Response Time
287ms average
Accuracy
99.97% guaranteed
Data Source
FCC database
Data Freshness
Updated daily