What is an LRN activation date and why is it important?

An LRN (Local Routing Number) activation date shows when a phone number was last ported between carriers. This data is crucial for fraud detection, risk assessment, and customer verification. Recent porting activity can indicate potential fraud or account takeover attempts, while established numbers suggest legitimate usage patterns.

Where does VeriRoute Intel's LRN activation date data come from?

The lrn_activated_at value is derived from authoritative North American number-portability routing data. It reflects the date a phone number most recently ported to its current carrier, returned in ISO 8601 format. When a porting date is not available for a number, the field is omitted from the response.

Can I integrate LRN activation date lookups with CNAM and other phone data?

Yes, VeriRoute Intel's API allows you to combine LRN activation dates with CNAM lookups, carrier information, line type detection, and other phone intelligence data in a single API call. This comprehensive approach provides complete phone number insights for better decision-making.

Do phone lookup APIs usually return a number's porting date?

Most carrier and LRN lookup APIs return a number's current carrier and line type but do not expose when the number ported to that carrier. VeriRoute Intel includes the porting date (lrn_activated_at) with every LRN lookup at no additional cost, which supports SIM-swap and account-takeover detection, number-reassignment checks, and carrier-tenure scoring.

NEW FEATURE

LRN Activation Date

Know when any phone number was last ported to its current carrier. Included with every LRN lookup.

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How It Works

Every phone number is born on an original carrier. When the owner moves it to a different carrier, that's a port — and lrn_activated_at stamps the date of the most recent one.

(336) 408-6644 issued by CenturyLink / Lumen → ported to → AT&T Wireless

// What the LRN lookup returns
{
  "phone_number": "13364086644",
  "carrier": "AT&T Wireless",   // current carrier (not the original)
  "carrier_type": "WIRELESS",
  "lrn_activated_at": "2024-11-02T00:00:00+00:00"  // the day it ported
}

Read that date as the number's tenure at its current carrier. A port two years ago says "stable, established line." A port last Tuesday on an account that just signed up says "verify before you trust." A number that never left its original carrier returns no port date at all — itself a signal of stability.

Why LRN Activation Date Matters

Phone number porting history is a powerful signal for fraud detection, lead scoring, and customer verification. Here's how businesses use it.

Fraud Detection

Recently ported numbers are a red flag for SIM swap fraud, account takeover, and identity theft. A number ported in the last 30 days warrants additional verification.

Lead Scoring

Phone numbers with longer tenure at their carrier indicate stability and legitimacy. Numbers held for years are more likely to be genuine, high-quality leads.

KYC Verification

Verify phone number ownership duration as part of Know Your Customer processes. Long-held numbers correlate with verified identities.

Risk Assessment

Build risk profiles by combining porting date with other signals. Flag accounts using recently ported numbers for step-up authentication.

Pattern Analysis

Detect suspicious porting patterns across your customer base. Identify coordinated fraud rings by analyzing porting date clusters.

Compliance Support

Document phone number history for regulatory compliance. Maintain audit trails showing verification was performed on customer phone numbers.

Easy to Integrate

The LRN activation date is automatically included in every LRN lookup response. No additional API calls, no extra parameters needed.

✓ Returned in ISO 8601 format for easy parsing
✓ Available via REST API
✓ Included in bulk lookup CSV exports
✓ Works with existing LRN lookups - no code changes

// API Response Example
{
  "phone_number": "12125551234",
  "lrn": "12125550000",
  "carrier": "Verizon Wireless",
  "carrier_type": "mobile",
  "lrn_activated_at": "2021-09-01T00:00:00+00:00"
}

Included with Every LRN Lookup

Most providers cannot offer porting history data. We include it as part of our standard LRN response.

No extra API calls. No additional charges. Just better data.

Start Using LRN Activation Date Today

Create an account and get instant access to porting history data with every LRN lookup.

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