Free Carrier Lookup Tool

Carrier Data Provided

• Carrier Name — Verizon, AT&T, T-Mobile, etc.
• OCN — Operating Company Number (unique carrier ID)
• LRN — Local Routing Number
• Ported Status — Whether number has been ported
• LRN Activation Date — When last ported (exclusive)
• Line Type — Wireless, landline, VoIP

Try Carrier Lookup

Open Free Lookup Tool

API example:

curl -X POST https://api-service.verirouteintel.io/api/v1/lrn \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"phone_number": "15551234567"}'

# Response:
{
  "data": {
    "phone_number": "15551234567",
    "lrn": "5551230000",
    "carrier": "Verizon Wireless"
  },
  "success": true
}

Why Carrier Lookup?

30%+ of Numbers Are Ported

You can't trust area codes to identify carriers. Over 30% of US numbers have been ported to different carriers. Only LRN lookup from NPAC gives accurate carrier data.

Call Routing

Route calls through the correct carrier paths for:

• Least-cost routing
• Better call quality
• Accurate billing

SMS Delivery

Knowing the carrier helps optimize SMS delivery:

• Route through appropriate gateways
• Handle carrier-specific filtering
• Improve deliverability

Exclusive: LRN Activation Date

VeriRoute Intel is the only service that provides LRN Activation Date — when a number was last ported. This helps:

• Detect SIM swap fraud
• Identify reassigned numbers
• Assess trust based on carrier tenure

Included free with every carrier lookup.

Bulk Carrier Lookup

Look up carriers for entire contact lists:

• Upload CSV
• Preview results before paying
• Download enriched data