Allow and block lists

Your overrides beat every automated signal

The allow and block lists on the Lookups page are workspace-owned overrides, answered before any scoring: an allow entry always lets the number through, a block entry always stops it. An explicit decision you made about a specific number beats every automated signal, and a listed answer costs your balance nothing.

Matching is on the last ten digits, so formatting never matters: +1 (555) 123-4567, 5551234567, and 555.123.4567 are all the same entry.

Upload a list

1. Lookups → Allow and block lists. Paste numbers one per line, or comma- or semicolon-separated: up to 1,000 at once.
2. Pick the rule, Always allow or Always block, and add an optional note; the note applies to every number in the paste.
3. Add. Invalid entries are skipped and counted, so one typo never sinks a 200-number paste. New entries take effect on the next call.
4. Remove an entry any time; the number goes back to normal screening on its next call.

Managing lists needs screener permissions (Owners and Admins have them). Block list vs. Report as fraud: your block list stops a number instantly, for your workspace only. Reporting a number as fraud feeds the shared phone-intelligence network and blocks it for every CallerSift workspace within a day, for 180 days. For a number burning your budget right now, do both.