Bulk HLR Lookup

Bulk HLR Lookup is the service for verifying every contact in your HubSpot database in one pass, instead of checking numbers one at a time through workflows.

Use it when you have thousands of contacts that need checking before a campaign launch, when you’ve inherited a database that’s never been cleaned, or when you need to audit your CRM’s phone data quality across the board. Bulk lookup writes the same custom properties back to each contact (line type, carrier, HLR status, confidence score, etc.) so you can immediately segment by quality.

The Overview page in this folder covers how it works end-to-end: discovery, the lookup pass itself, and the results that come back to your portal.