Carrier Lookup API

Identify voice and messaging carriers for any US phone number. Get carrier name, line type, and porting history with 99%+ accuracy.

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What is Carrier Lookup?

Carrier lookup identifies which telecommunications company serves a phone number, including line type and porting history.

📱

Carrier Name

Identify the carrier serving the number - Verizon, AT&T, T-Mobile, and hundreds of others.

📞

Line Type

Detect mobile, landline, or VoIP. Essential for SMS delivery and fraud prevention.

📅

Porting History (FREE)

lrn_activated_at shows when the number was ported. Key fraud indicator included FREE.

📍

Location Data

City, state, rate center, LATA, and timezone for the phone number.

Carrier Lookup API Example

Use LRN lookup with enhanced data to get carrier information:

Carrier Lookup via LRN API
# Request
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": "13364086644", "include_enhanced_lrn": true}'

# Response
{
  "lrn": "13364086644",
  "lrn_activated_at": "2019-03-15T00:00:00Z",
  "phone_number": "13364086644",
  "enhanced_lrn": {
    "carrier": "Verizon Wireless",
    "carrier_type": "WIRELESS",
    "ocn": "6324",
    "lata": "424",
    "rate_center": "WINSTN SAL",
    "city": "Clemmons",
    "state": "NC",
    "timezone": "-0500"
  }
}
carrier The carrier name serving the number
carrier_type WIRELESS, LANDLINE, or VOIP
lrn_activated_at When the number was ported (FREE)
Location Data City, state, OCN, LATA, rate center, timezone

Line Type Detection

Identify whether a number is mobile, landline, or VoIP:

📱

WIRELESS (Mobile)

Cell phones on carrier networks. Highest deliverability for SMS. Supports voice and text.

📞

LANDLINE

Traditional wired phone lines. Voice only by default. Some support text-to-landline.

🌐

VOIP

Internet-based phone numbers. Higher fraud risk. May not support SMS verification.

Carrier Lookup Pricing

Carrier data is included with LRN lookup:

Standard

$0.0005
per LRN lookup

Includes carrier + porting history
No monthly minimums

Enterprise

Custom
pricing

High-volume plans
Dedicated support & SLA

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Frequently Asked Questions

What is carrier lookup?

Carrier lookup identifies which telecommunications company serves a phone number. It returns carrier name, line type (mobile/landline/VoIP), and network information.

Can it detect VoIP numbers?

Yes! The carrier_type field identifies mobile, landline, and VoIP numbers. VoIP detection is valuable for fraud prevention.

Is porting history included?

Yes! Every LRN lookup includes lrn_activated_at FREE, showing when the number was ported to its current carrier.