Free Tool
Enter a US phone number below and this free carrier lookup returns the carrier name that currently owns the line, its line type -- cell phone, landline, VoIP, or disconnected -- and whether the number belongs to a known TCPA litigator. The area code alone cannot tell you: in North America the same prefix is issued to both mobiles and landlines, and number portability means a line may have moved between them.
5 free lookups per day • No credit card • We never sell your data
A phone carrier lookup queries the routing records that telecom operators maintain for every number in service, and returns the carrier that owns the line right now. That "right now" is the whole point: carrier is not a fixed property of a number.
The operator the number is currently routed to — T-Mobile, Verizon, AT&T, or one of the hundreds of smaller carriers and MVNOs. Because of local number portability, this changes whenever the subscriber switches provider, so any carrier value cached more than a few months ago is unreliable.
Whether the number is a mobile, a landline, a VoIP line, toll-free, or disconnected. This is the field that decides whether an SMS campaign can reach the contact at all, and it is the one area codes are most often wrong about.
Whether the number has been ported away from its original carrier. A ported number is normal and common, but it is also the reason a lead list bought two years ago has carrier data that no longer matches reality.
Whether the number appears in a court-sourced database of serial TCPA filers. No other free carrier lookup returns this, and it is the field with the most money attached to it.
Line type is the single most useful field on a purchased lead list, because it determines both whether the call can connect and how much legal risk it carries.
| Line type | What it means | Should you dial it? |
|---|---|---|
| Mobile | An active cell phone on a carrier network. Can receive both calls and SMS. | Yes — but mobiles carry the strictest TCPA consent rules, so check consent and litigator status first. |
| Landline | A fixed line at a physical address. Cannot receive SMS. | Connects, but any SMS campaign will fail silently. Remove before texting. |
| VoIP | An internet-based number (Google Voice, Twilio, and similar). Cheap to create and discard. | Usually not. VoIP is over-represented in low-quality and fraudulent lead lists. |
| Toll-free | An 800/888/877-style business line, billed to the receiver. | No. It is a company switchboard, not a consumer lead. |
| Disconnected | The number is no longer in service. | No. Dialling these wastes agent time and depresses your connect rate. |
North American numbering plan prefixes are not split by line type. The 202 area code contains both mobiles and landlines, and local number portability means a number issued as a landline in 2004 may be a mobile today. Only a carrier-level lookup is current.
TCPA statutory damages run $500–$1,500 per violation, and a small population of serial filers deliberately seeds their numbers into purchased lead lists. Most free validators return line type only, leaving that risk in your file.
This tool is for spot-checking. To clean a whole lead list, upload a CSV: NumberBroom validates every row at the carrier level and removes known TCPA litigators in the same job, then hands back a dialler-ready file.
Carrier-level phone validation, activity scoring and the TCPA litigator check. A 5,000-number list is $1,000. No subscription.
Small lists pay a flat $5 rather than pricing out to a few cents. Above 25 numbers, you pay exactly $0.20 each.
A carrier lookup queries live telecom routing records to find out which carrier a phone number currently belongs to, along with its line type — mobile, landline, VoIP, toll-free or disconnected.
Because local number portability lets subscribers keep their number when they switch providers, the carrier on a number can change at any time. A lookup reflects the network the line is routed to today, not the carrier that originally issued it.
Accuracy depends entirely on whether the tool queries live carrier data or a cached copy. A lookup against current routing records is accurate at the moment you run it.
Tools that resolve numbers from a static area-code or prefix table are frequently wrong, because the same prefix carries both mobiles and landlines and portability moves numbers between carriers continuously. NumberBroom queries carrier data per lookup rather than serving a cached result.
Enter the number into a phone validator that queries carrier data. The validator looks it up against carrier records and returns the line type — mobile, landline, VoIP, or disconnected. Area code alone cannot tell you: in North America the same prefix can be issued to either a mobile or a landline, and number portability means a number may have moved between the two since it was assigned.
Yes. You get 5 free carrier lookups per day with no credit card, and each one returns the carrier name and line type plus a TCPA litigator check. To check more than a handful of numbers, upload a CSV and pay $0.20 per number ($5 minimum), no subscription.
Yes. VoIP is reported as its own line type, separate from mobile and landline. This matters for outbound calling because VoIP numbers are cheap to create and discard, so they appear disproportionately in low-quality and fraudulent lead lists.
A TCPA litigator check compares a phone number against a court-sourced database of people who repeatedly file Telephone Consumer Protection Act lawsuits against businesses that call or text them.
Because TCPA statutory damages run from $500 to $1,500 per violation, dialling one of these numbers is expensive. Most free phone validators do not include this check — this one does.
Upload a CSV of up to 5,000 rows. NumberBroom auto-detects the phone column, shows the exact row count and cost before you pay, then returns a clean file with line type, carrier and litigator status appended to every row. Pricing is $0.20 per row, with a $5 minimum, and no monthly fee. See pricing.
No, and neither does the paid product. NumberBroom never returns a private individual’s name, address or demographics from a phone number. The one identity add-on we sell is Business Line Verification at $0.70 per contact, which appends a business name and industry only where the number is a registered business line — anything that is not a business line comes back blank.
Upload a CSV, see the exact cost, pay once. No subscription.
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