Free Carrier Lookup
Find out if a phone number is mobile, landline or VoIP, and which carrier it belongs to.
3 free lookups a day. Canadian numbers are not supported.
One credit per number with an answer. Invalid numbers, repeats and lookups with no data are free. Canadian numbers are not supported.
Results
| Number | Country | Line type | Texts arrive? | Carrier | Note |
|---|
Checking a whole list? Credits look up to 1,000 numbers in one run and download the results for Excel.
See credit packs- No sign-up
- Live carrier data, ported numbers included
- US and international numbers
Check a Whole List
Buy a pack of credits, get your key by email, and paste it under Use credits. No account needed.
- One-time payment. Credits never expire.
- You only pay for numbers that get an answer.
- Your key arrives by email. Credit packs are non-refundable once delivered.
What Each Line Type Means
The line type tells you whether a text message can reach the number.
MobileTexts arrive
A cell phone on a mobile network. These are the numbers to keep for an SMS campaign.
LandlineNo texts
A fixed home or office line. A text sent here is lost, and most SMS services still charge you for it.
Fixed VoIPSometimes
An internet phone line tied to an address, such as a cable company or office phone system. Some take texts, many do not.
Non-fixed VoIPSometimes
A number made online with no device behind it, such as Google Voice or a texting app. Common on fake sign-ups.
Toll-freeSometimes
An 800-style business number. Only toll-free numbers that the business has enabled for texting can receive them.
OtherNo texts
Premium rate, shared cost, pager and voicemail numbers. Leave them out of a text campaign.
Frequently Asked Questions
A carrier lookup tells you which phone company a number belongs to today and what kind of line it is: mobile, landline, VoIP or toll-free. The answer comes live from the carrier databases Twilio uses, so a number that moved to another carrier shows the carrier it is on now, not the one it started with.
Look it up here and read the Line type column. In the US you cannot tell from the number itself: mobile phones and landlines share the same area codes, and people keep their number when they switch. Only a live lookup knows.
Yes, three lookups a day, one number at a time, with no sign-up. To check a whole list, buy a credit pack and look up to 1,000 numbers in one run.
After you pay, your key arrives by email. Open Use credits on this page, paste the key and paste your numbers. Each number that gets an answer uses one credit. Invalid numbers, repeats within a run and lookups that return no data are free. Credits never expire, and the results download as an Excel file or CSV.
Canadian carrier data is only released to companies that hold a contract with Canada’s number portability administrator, and this tool does not have one. So Canadian numbers are never looked up and never cost you a free lookup or a credit. The result row says so.
No. The lookup tells you the line type and the carrier the number is assigned to. A number can be assigned and still be switched off or out of use. Only a real text or call proves that someone answers.
Yes. Choose the country they belong to and the tool adds the code. A number that starts with + is always read as international, whatever country you chose.
Each number goes from my server to Twilio to be looked up. The answer is kept for 30 days so the same number is not paid for twice, and nothing is shared or sold. Your IP address and your key are only stored as one-way hashes, to count free lookups and credits.
Yes. The free bulk phone number validator checks the format and country of up to 50 numbers at once and turns them into E.164. It cannot tell a US mobile from a landline, which is what this tool is for.
Text the Mobile Numbers on Your List
QuickText sends personalized texts to your contacts from your own phone number, imported straight from Excel or CSV. Replies come back to your phone, with no per-text fees on top of your plan.
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