CheckNumber.AI 
Carrier Detection
usaCarrier $2 per 10,000 checks
- Core data available
- number, number_type, country_code, carrier, underlying_carrier, region, city
- Best for
- Filtering mobile vs. landline numbers before outreach
No-code CSV REST API Exportable results
Identify Carrier & Line Type for Any Number
Identify line type (Mobile/Virtual/Landline), carrier name, country, and region/city for each number — across multiple countries.
CheckNumber's global carrier checker identifies the carrier, line type, and country behind any phone number, drawing on billions of regularly updated records. Query a number via the REST API and get back its service provider, whether it is mobile or fixed line, and its country and region — ready to route messages, cut delivery costs, and screen numbers before you use them.
E.164
Phone input
$2
Per 10,000 checks
CSV + API
Workflow
Submitted number +1312••••9087
Line type mobile
Country code 1
Carrier Detection No account, number, or SIM required
Every check runs through official platform APIs on our own infrastructure. You never connect, bind, or use your own account, phone number, or SIM card — just upload your list or call the API and get results.
What CheckNumber detects for Global Carrier Checker
Carrier / service provider
Returns the mobile or fixed-line operator the number belongs to, with multilingual carrier names.
Line type
Identifies whether the number is MOBILE, FIXED_LINE, or FIXED_LINE_OR_MOBILE.
Country and region
Returns the country and region the number belongs to, such as ID for Indonesia.
High accuracy, up to date
Backed by billions of records with timely updates for reliable results.
What You Can Check
A focused carrier and line-type lookup
Use the carrier task when the required output is line type and country calling code mapped to each submitted E.164 phone number.
| Global Carrier Checker product | Task type | Input | Core data available | Best for | Current price |
|---|---|---|---|---|---|
| Carrier Detection API documentation | usaCarrier | Phone numbers in E.164 format | number, number_type, country_code, carrier, underlying_carrier, region, city | Filtering mobile vs. landline numbers before outreach | $2 per 10,000 checks |
Core carrier data
What the carrier task returns
The result file maps one row to each submitted number with the fields below.
Carrier lookup
usaCarrier - number
- The phone number supplied for the check, in E.164 format.
- number_type
- The line type, such as mobile, landline, or virtual.
- country_code
- The country calling code associated with the number.
This is a carrier and line-type lookup, not a registration check — it does not confirm whether the number is active on any specific platform.
Run a carrier batch in three steps
Use the no-code platform for uploaded lists or the REST API for recurring workflows.
- 1
Prepare E.164 numbers
Provide one international phone number per row with country code.
- 2
Create the usaCarrier task
Upload the file or call the API with task_type set to usaCarrier.
- 3
Export mapped rows
Download the completed file and match each result to its source number.
Common Use Case
Improve Global Carrier Checker list quality before outreach
Route messages correctly, filter out landlines, or enrich number data before outreach.
No-code CSV REST API Exportable results
Signal 1
Carrier lookup — identify the mobile or fixed-line operator behind each number.
Signal 2
Line type and country — see whether a number is mobile or fixed line and which country it belongs to.
Signal 3
Accurate and up to date — backed by billions of records with timely updates.
Global Carrier Checker FAQ
What does the carrier checker return?
For each number it returns the carrier or service provider, the line type (mobile or fixed line), and the country and region code.
Which countries are covered?
Global coverage backed by billions of records with timely updates.
Is it a bulk file or a single lookup?
The carrier inquiry is a real-time lookup by number and country via the REST API.
Is there a free trial?
Yes. New accounts receive 1,000 free checks on signup with no credit card, and every check is pay-as-you-go with no monthly fee, and the credits you top up never expire.
Refer & Earn 10%
Earn 10% Commission on Every Recharge — For Life
Share your unique referral link. When someone signs up through it and tops up their account, you instantly receive 10% of the amount paid as bonus credit — no expiry, no cap.
- 10% commission on every recharge your referrals make
- Bonus credit is applied automatically — no withdrawal steps
- Lifetime referral link — earn forever, not just once
10%
Learn how it workscommission per recharge