Everything you need to build, inspect and clean number lists before and after a run.
Produce a continuous range from a starting number — set a quantity or an end number, optionally shuffled, with a live size estimate before you commit.
Take an existing list as the seed and expand it into new candidate numbers while preserving the source prefixes.
Spread generation across several prefixes at once so the output is not a single contiguous block.
Pick a country and generate from its real operator prefixes. Ships with 207 countries and 28,739 carrier prefixes.
Look up any prefix and see the country, operator and expected line length before you generate against it.
Combine any number of lists into one file, with duplicate handling applied across the whole merge.
Break a list down by country, carrier and prefix with counts, percentages and a distribution chart — so you know what you are about to run.
Cut a large file into evenly sized parts by line count or by file size.
Strip repeated entries from a list with an exact count of what was removed.
Normalise a whole file to or from international `+` notation in one pass.
The toolbox is not an add-on — it is part of the application.
See pricing
