Email

One address for everything: hello@numberingdata.com

Write about a wrong figure, a dataset you need, a question about the method, or anything else. Corrections get priority – if you can point at the primary source that contradicts us, the fix usually takes a day.

Who operates this site

an independent project, built from public telecom data. Not affiliated with any phone carrier, insurer or regulator, and not selling anything.

What we cannot help with

We cannot tell you who owns a phone number, stop calls reaching you, or act on your behalf with a carrier. For unwanted calls, the FTC takes reports at reportfraud.ftc.gov and the Do Not Call registry is at donotcall.gov.