Phone Lookup
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Know What You Are Calling Before You Call It
Every number in your contact list has a story. Is it a mobile number that accepts SMS? A landline that usually cannot receive your text? A VoIP number where you expected a mobile? An invalid number you have been paying to reach for months?
RealValidito’s phone lookup tool surfaces that intelligence instantly — for one number or fifty thousand. Check Valid/Invalid status, carrier, line type and location — or use the free phone validator for individual number checks so your outreach goes to valid numbers on the right channel, and your budget stops disappearing into dead numbers.
It also works as a free carrier lookup: enter a number to see its carrier (our data is updated daily and includes porting information). For more ways to find a carrier, see how to find the carrier of any US phone number.
Trusted by marketing teams, call centers, and operations teams to clean millions of contact records per month across the United States and Canada.
Free US & Canada Phone Lookup — Check Carrier, Line Type & Validation Status Instantly
Try Phone Lookup For Free
Enter any US or Canada number and get instant carrier, line type, and validation results:
Exactly 10 digits. A leading +1, spaces, dashes and brackets are removed automatically.
Why Line Type Is the Most Valuable Signal in Your List
SMS Goes to Mobile Only
Your SMS platform charges per message sent — including to landlines that usually cannot receive it. Phone lookup strips landlines and invalid numbers before your campaign sends, cutting wasted spend and improving deliverability scores.
VoIP Signals Higher Risk
VoIP numbers are more often used for temporary accounts or overseas proxy services. Flagging them before outreach protects your sender reputation and call center metrics. To support TCPA compliance, pair phone lookup with DNC scrubbing (or use Phone + DNC Lookup to do both in one check) to screen against the DNC lists we check before every campaign.
Dead Numbers Hurt Deliverability
Inactive numbers generate hard bounces that damage your sender score with carriers. Running a phone lookup before any outreach campaign removes invalid numbers (not assigned to a carrier) before they cost you reputation points.
How Phone Lookup Works
1 Enter a US or Canada Phone Number
Type any 10-digit number into the search field. Any format is accepted — dashes, spaces, parentheses, plain digits. RealValidito strips formatting automatically.
2 Carrier Data Is Checked
Our system checks the number against carrier data from multiple authoritative sources, updated daily and including porting information.
3 Results Usually in Under a Second
Within a second you see whether the number is Valid or Invalid, plus full line type detail. No waiting, no queuing.
4 Full Phone Intelligence Delivered
Carrier name, line type, city, state, ZIP and time zone. Need compliance data too? Check DNC and TCPA status →
Phone Lookup Features
Valid / Invalid Check
Instantly confirm whether a number is Valid: correctly formed and assigned to a carrier — not just correctly formatted. Our data is updated daily and reflects number porting.Line Type Detection
Identify mobile, landline, VoIP, toll-free — the single most important field for routing outreach correctly and avoiding wasted send costs.Carrier Name & Type
Get the current network provider updated for ported numbers. The carrier type shows VoIP numbers, so you can decide whether to accept them.Geographic Details
Returns state, city, ZIP code, area code, and time zone. Verify a contact’s stated location or schedule outreach at the right hour using time zone data.Bulk CSV Validation
Upload up to 50,000 numbers at once. Results are returned as a downloadable CSV with carrier and line type added as new columns — no manual work needed.Real-Time Phone Lookup API
Connect lookup directly to your CRM, marketing platform, or web forms. Every incoming number is enriched automatically — carrier, line type, and location at the point of entry.Built for Marketing and Operations Teams
Before an SMS campaign — strip landlines and invalid numbers. Your deliverability improves, your cost per delivered message drops, and your sender reputation stays clean.
Before a cold calling sprint — prioritize mobile numbers, flag VoIP. Your agents spend time on real conversations instead of dead lines and invalid numbers.
CRM hygiene runs — schedule monthly lookups against your full contact database to catch numbers that have gone inactive since you collected them. Export results as CSV.
Lead scoring — a mobile number from a major carrier is a stronger lead signal than a VoIP number. Add line type as a scored field in your lead qualification model.
List purchases — before importing a bought list, run it through phone lookup. Know the quality of what you are working with before your first send.
Frequently Asked Questions — Phone Lookup
What is the difference between phone lookup and phone validation?
Validation checks whether a number is valid (assigned to a carrier). Lookup goes further — returning carrier name, line type, location, and time zone. RealValidito performs both in a single query.
How fresh is the carrier data?
Phone Lookup uses carrier data from multiple authoritative sources, updated daily and including porting information.
Can I use lookup results for TCPA compliance?
Line type data helps you route contacts appropriately — for example, avoiding auto-dialing VoIP or landline numbers with an ATDS. To support TCPA compliance, combine phone lookup with DNC scrubbing (or use Phone + DNC Lookup to do both in one check). See DNC Lookup →
Does phone lookup work for Canadian numbers?
Yes. Carrier and line type data is available for US and Canadian phone numbers.
How many numbers can I check at once?
Single lookups run instantly in the tool above. For bulk lists, upload a CSV with up to 50,000 numbers via your dashboard. For automated workflows, use the Phone Lookup API which accepts up to 1,000 numbers per request.