IOSOR
LearnSign InConnection applicationRestore Access
  1. IOSOR
  2. /Knowledge hub
  3. /Number aging

Number aging

Reputation, recycle, and cool-down of number pools — not a JIT purchase of a new DID.

3 guides in this topic

  • Dirty Pool Stops Assignment Instead of Swapping in Silence

    Learn how IOSOR handles dirty number pools by pausing assignments and requiring manual ops intervention instead of silently swapping numbers or faking activation.

  • Cool-down before a number pool is reused

    Learn how IOSOR manages number aging and cool-down windows to prevent dirty reputation transfer between brands, ensuring clean E.164 routing and high delivery rates.

  • Number Aging is Reputation, Not a JIT Buy

    Learn how to manage number aging and pool cool-down in your prepaid CPaaS console instead of relying on JIT buying to fix deliverability issues.

Adjacent topics

  • Fraud & abuse control
  • Deliverability

Not this hub: Numbers / DID

Ready for a controlled prepaid path?

Tell us destinations, monthly volume, and compliance constraints. We will map onboarding clearly.

Apply for access
AboutKnowledge hubSite mapnFADP Privacy PolicyGDPR ComplianceTerms of ServiceSLA AgreementB2B Master AgreementApply for access

English is the sole legally binding language of IOSOR legal documents. Summaries in other languages are for convenience only.

© 2026 IOSOR · All rights reserved.🇨🇭 Switzerland