This is the total number of contacts this number actively messages.
- Recommended cap per number: up to ~3,000 active contacts
- Above this, you should start spreading traffic across more numbers
#Why it matters
While there’s no single magic limit, trying to run an entire operation from one phone number concentrates all risk in one place.
#How to improve this metric
- Add additional numbers as your audience grows beyond a few thousand contacts
- Segment by product line, geography, or funnel so each number owns a slice of traffic
- Move inactive or low-value contacts to lower-priority numbers or channels
#Best practices