Carrier LookupFind the Carrier for Any Number
Look up the current carrier, line type, and porting history behind any phone number worldwide. Real-time, MNP-aware carrier data across 195+ countries — built for routing, fraud prevention, and clean contact records.
195+
Countries
15K+
Carriers
<200ms
Response Time
Carrier Intelligence
See the carrier, line type, and porting history behind any phone number
Global Carrier Identification
Identify current and original carrier for any phone number globally across 195+ countries. Our database includes real-time carrier information with support for major and regional carriers worldwide.
Advanced Network Type Detection
Line type classification covering mobile, landline, VoIP, toll-free, premium rate, and satellite numbers. Essential for routing optimization and compliance management.
Mobile Number Portability Intelligence
MNP data including porting history, original carrier, current carrier, porting timestamps, and carrier migration patterns. Critical for accurate routing and billing.
Geographic & Regulatory Intelligence
Detailed geographic information including country, region, timezone, and regulatory data. Essential for compliance with local regulations and optimized service delivery.
Carrier Intelligence Use Cases
Real-world applications for telecommunications optimization and fraud prevention
Telecom Routing & Optimization
Optimize call routing decisions based on accurate carrier information. Reduce costs and improve call quality with intelligent routing algorithms.
Fraud Prevention & Security
Identify suspicious number patterns and prevent telecommunications fraud. Detect premium rate scams and unauthorized network usage.
Customer Verification & Onboarding
Verify customer phone numbers and carrier information during registration. Ensure accurate billing and improve customer data quality.
Enterprise Communications
Optimize enterprise communication systems with accurate carrier data. Improve internal routing and reduce telecommunications costs.
Carrier Intelligence Market Insights
Industry research on telecommunications and mobile network operations
Global Telecom Market
The global telecommunications market reached $1.8 trillion in 2024, serving over 6.8 billion mobile subscribers worldwide across 15,000+ carriers.
Number Portability & Routing
FCC data shows 47 million numbers ported annually in the US alone.
Carrier Intelligence Business Value
195+
Countries Covered
15K+
Carrier Database
200ms
Response Time
Modern carrier intelligence platforms serve 195+ countries with databases covering 15,000+ carriers worldwide.
Simple Carrier Lookup Integration
Get carrier, line type, and porting data with a single API call
// Carrier lookup with network intelligence
const response = await fetch('https://api.1lookup.io/v1/lookup/carrier', {
method: 'POST',
headers: {
'Authorization': 'Bearer YOUR_API_KEY',
'Content-Type': 'application/json'
},
body: JSON.stringify({
phone: '+14155552671',
include_history: true,
include_geography: true
})
})
// Full response
{
"phone_number": "4155552671",
"country_code": "US",
"carrier": {
"name": "Verizon Wireless",
"code": "VZW",
"type": "mobile",
"mcc": "310",
"mnc": "012"
},
"original_carrier": {
"name": "AT&T Mobility",
"code": "ATT",
"type": "mobile"
},
"line_type": "mobile",
"ported": true,
"porting_date": "2023-03-15T10:30:00Z",
"geography": {
"country": "United States",
"region": "California",
"timezone": "America/Los_Angeles"
},
"network_info": {
"technology": "LTE",
"roaming": false,
"mnp_status": "ported_in"
},
"tokens_used": 2
}Technical Specifications
Countries Supported
195+
Carrier Database
15,000+
Response Time
<200ms
Accuracy
Carrier-sourced
Carrier Lookup FAQ
Common questions about looking up the carrier behind a phone number
How do I look up the carrier for a phone number?
Enter the phone number in international (E.164) format — for example +14155552671 — into the carrier lookup and it returns the current carrier, line type, and country in real time. For one-off checks use the free carrier lookup tool; for bulk or programmatic checks call the Carrier Lookup API with a single request per number.
What carrier is this number on?
The lookup identifies the carrier a number is currently registered to, not just the original network it was issued by. Because numbers get ported between carriers, we resolve the live carrier using mobile number portability (MNP) data so you see who actually serves the number today.
Is the carrier lookup free?
Yes — the free carrier lookup tool lets you check individual numbers with no signup. If you need to look up carriers at scale or inside your own product, the Carrier Lookup API includes a 7-day free trial and then runs on pay-as-you-go universal credits.
Can it detect the carrier of a ported number?
Yes. Ported numbers are exactly where prefix-based free tools go wrong. We return both the current carrier (after porting) and the original carrier, along with porting status and timestamps, so routing and billing decisions use the real network.
Does carrier lookup work for mobile and landline numbers?
It does. Each result includes a line-type classification — mobile, landline, VoIP, toll-free, premium rate, or satellite — so you can tell a cell phone from a landline or a VoIP number before you call or text.
Which countries and carriers are supported?
Carrier lookup covers 195+ countries and a database of 15,000+ carriers, including major and regional networks worldwide, with typical response times under 200ms.
What data does the carrier lookup API return?
A typical response includes carrier name and code (OCN/MCC/MNC), line type, ported status, original carrier, and geographic detail such as country, region, and timezone. See the API docs for the full response schema.
Related Lookups
Explore the rest of the 1Lookup phone intelligence suite
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