EnglishFree carrier lookup: identify any phone number's carrier
Find the network behind a phone number in seconds. Check whether it's mobile, landline or VoIP, where it's from and whether it's valid — free, with no sign-up.
This number is not in use or not valid for its country.
- Carrier
- Not available for US and Canadian numbersNot available
- Line type
- MobileLandlineMobile or landlineVoIPToll-freePremium rateShared costPersonal numberPagerUniversal access numberVoicemailUnknown
- Country
- +
- Location
- Time zone
This is the network the number was originally issued by. If it has been ported to another carrier since, the current network may differ.
US and Canadian numbers move freely between carriers, so the original network isn't a reliable guide. For live carrier checks at volume, talk to our team.
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Why use a carrier lookup tool?
Knowing which carrier a phone number belongs to, and whether it can receive SMS at all, helps businesses and individuals alike: from cleaning a contact list before an SMS campaign to checking an unknown number before you call back.
Carrier lookup benefits
Optimise costs
Pick cost-effective SMS routes per network and stop paying to message numbers that can never receive a text.
Improve delivery
Spot landlines and invalid numbers before a campaign, so fewer messages fail or get blocked.
Enrich your data
Add carrier, line type and region to your contact lists for better segmentation.
Prevent fraud
Combine line type and validity checks with your sign-up flow to flag suspicious numbers.
Target marketing
Tailor messaging and offers by country, region or mobile network.
How SMSLocal's carrier lookup works
Enter a number
Choose the country code and type the phone number you want to check.
We check the numbering plan
The number is matched against the national numbering plan and carrier allocations published for its country.
Get the results
See whether the number is valid, its line type, the network it was issued by, its region and its time zone.
Common uses for carrier lookup
For businesses
- SMS marketing: remove landlines and invalid numbers and route by network before you send.
- CRM enrichment: add carrier, region and line type to customer records.
- Sign-up checks: validate phone numbers when accounts are created.
For developers
- Application development: add phone validation and line-type checks to sign-up and checkout flows.
- Fraud detection: treat VoIP and invalid numbers as higher-risk signals.
For individuals
- Unknown callers: see a number's country, region and network before you answer or reply.
- Spam and scams: check a number before responding to an unexpected message.
Understanding line types: mobile, landline and VoIP
- Mobile: assigned to a phone on a cellular network. Can receive SMS.
- Landline: a fixed telephone line. Usually can't receive SMS.
- VoIP: a number that runs over the internet. SMS support depends on the provider.
Knowing the line type tells you the best way to reach a number and avoids paying for messages that can't be delivered.
Number portability and carrier lookup
Number portability lets people keep their number when they change operator, so a number's original network can differ from the one serving it today. This tool shows the original network and says so in the result. In the US and Canada, where portability is universal, it shows the region and time zone instead of a carrier.
Frequently asked questions
A carrier lookup identifies the telecom operator a phone number belongs to, such as Vodafone, Airtel or China Mobile, along with whether it is a mobile, landline or VoIP number.
Yes. Individual lookups on this page are free and need no account. For high-volume or automated lookups, contact the SMSLocal team about bulk options.
Numbers from every country can be validated and given a line type. Carrier names are available for most countries; for the US and Canada the carrier is not shown, because numbers there move freely between operators.
The tool shows the network the number range was originally assigned to. If the owner has ported the number to another operator since, the current carrier can differ. Validity and line type are reliable.
Number portability lets people keep their phone number when they switch operators. It is why the original network of a number is not always the one serving it today.
This free tool checks one number at a time. For bulk or API-based lookups, contact our team.
It helps you route messages cost-effectively, remove landlines and invalid numbers before sending, and segment audiences by network and region.
Mobile numbers belong to phones on a cellular network. Landlines are fixed telephone lines. VoIP numbers run over the internet. Landlines usually cannot receive SMS, which is why checking line type before a campaign saves money.
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