--- title: "Free Phone Number Lookup: Carrier and Line Type" url: "https://lookvalid.com/tools/phone-number-lookup.md" canonical_url: "https://lookvalid.com/tools/phone-number-lookup" last_updated: "2026-10-29" type: "tool" summary: "Free phone number lookup. Enter a number and see if it is valid, what kind of line it is, where its area code is registered." related: ["https://lookvalid.com/docs/api/phone.md"] --- # Free Phone Number Lookup: Carrier and Line Type > **For AI agents:** the complete index of LookValid pages is [llms.txt](https://lookvalid.com/llms.txt). Every page is also served as markdown at its URL plus .md. Free phone number lookup. Enter a number and see if it is valid, what kind of line it is, where its area code is registered. Type in a phone number and get one answer: whether it is valid, what kind of line it is, where its area code is registered and, for a US number, which carrier received its block and how many complaints are on file. ## Facts - Free, no account needed. The number you enter is sent from your browser to LookValid's lookup service to be checked. The service keeps the result, number included, for up to seven days so repeat checks are quick. - Related API product: [phone](https://lookvalid.com/docs/api/phone.md), 1 credit through the API. ## How it works 1. Enter a number with its country code, or add a two-letter country such as US or GB for a number written the local way. 2. The number is checked against its country's numbering plan. A US or Canadian number then goes on to the carrier records and the complaint records. 3. You get the number in standard formats, its line type and area code region, the carrier block and the complaint count, with a link to the tool that goes deeper on each part. ## Example result Phone number +1 201 200 0014, a US number, checked on 2026-10-29. Captured 2026-10-29. - Number: +12012000014, written (201) 200-0014 in the US - Line type: Landline or mobile - Area code: 201, New Jersey - Carrier the block was assigned to: VERIZON NEW JERSEY, INC. - Rate center and state: JERSEYCITY, NJ - Complaints on record: 5 - Kinds of calls reported: Live voice, prerecorded voice, unwanted calls ## What you can learn from a number A lookup answers four practical questions. Is this a real number or a typo? What kind of line is it, mobile, landline, internet phone or toll free? Where was its area code registered? And for a US number, which carrier received the block it sits in and have people reported it? Each part comes from a public source named in the table below, so you can see how far to trust it and what to do when the answer is thin. ## Reading the carrier and complaint parts The carrier is the one the number block was first assigned to. People change carriers and keep their numbers, so the block carrier is a strong hint and not a billing fact. When a block is pooled, both the carrier that received it and the holder of the whole code are shown. The complaint count is the number of reports on file for that exact number, with the first and last report dates and the kinds of calls people described. A count of zero means nobody filed a report. It does not prove the number is safe. ## What this lookup does not tell you It does not return the name of the person or business behind a number, and it does not say whether the number is switched on, ported or reachable right now. Those need a live carrier query. If you got a call and want to judge it, open the spam phone checker for the complaint history and the spam score built from it. To store a number cleanly, the phone number validator returns it in E.164, national and international form. ## Each part of the answer, where it comes from, and what it can and cannot tell you | Part of the answer | Where it comes from | What it tells you | What it does not tell you | | --- | --- | --- | --- | | Number and formats | The numbering plan of the number's country | Whether the number fits the plan, and the E.164, national and international forms | Whether anyone owns it or answers it | | Line type | The numbering plan ranges for each kind of service | Mobile, landline, VoIP, toll free and other types where the plan separates them | Landline or mobile in the US and Canada, where the plan does not separate them | | Area code region | North American Numbering Plan area code assignments | Where a US or Canadian area code was first assigned | Where the phone is today | | Carrier block | NANPA central office code and thousands-block reports | The carrier that first received the block, its carrier code, rate center and state | The carrier serving the number now, or whether it was ported | | Complaint history | FCC unwanted-call consumer complaints | How many reports are on file, when they were filed and what kind of calls they describe | Who owns the number, or whether a call you got was a scam | ## Sources - [Google libphonenumber, number type metadata for every country](https://github.com/google/libphonenumber), read 2026-10-19 - [North American Numbering Plan Administrator, central office code and thousands-block reports](https://nanpa.com/), read 2026-10-19 - [FCC unwanted-call consumer complaints, open data](https://opendata.fcc.gov/resource/3xyp-aqkj.json), read 2026-10-17 ## Questions ### Can I find out who owns a phone number? No. This lookup shows what a number is and what is on file about it: its line type, area code region, carrier block and complaint count. It does not name the person or business behind it. ### Is this phone number lookup free? Yes. It needs no account and no card. Each visitor gets a daily allowance, and the API runs the same checks in your own forms and imports without that limit. ### Why does a US number read landline or mobile? The US and Canadian numbering plan hands out numbers in blocks and does not keep landline and mobile numbers apart, so it cannot say which one a number is. The carrier block is the best extra hint. ### Why are the carrier and complaint parts missing for my number? Both read US numbering plan records. A number in another country gets the number check and the line type, and the page says why the other two parts were skipped. ### What is the difference between this and the phone number validator? The validator returns the number in every standard format for your database. This page adds the carrier block and the complaint history to the same number so you can judge it in one step. ## Related - [Phone Numbering-Plan Validation reference](https://lookvalid.com/docs/api/phone.md)