Number Portability Lookup
Check whether a phone number has been ported and resolve its true current carrier.
# free & rate-limited · no signup
Three quick steps
Enter a number
Paste the phone number to check.
Live lookup runs
We resolve porting status and current carrier.
Read results
See whether it's ported and to which carrier.
Porting status
Detect whether a number has been ported.
Current carrier
Resolve the true present-day carrier.
LRN data
Return local routing number details.
Accurate routing
Avoid misrouted messages and calls.
Who uses it
Messaging
Route to the correct carrier post-port.
Compliance
Keep contact records accurate.
Analytics
Understand carrier movement.
Developers
Enrich records with porting data.
FAQ
Is this number portability lookup tool free?
Yes. It's free and rate-limited with no signup required to try. For higher volume and API access, create a free account with 1,000 lookups included.
How accurate are the results?
This free tool returns demo results to show what the API delivers. The production API is sourced from carrier, regulatory, and authoritative data updated daily.
Can I use this in bulk or via API?
Yes. Sign up for API access to run single lookups, bulk CSV jobs, and async processing with webhooks — all on one universal credit balance.