Source note · Troubleshooting number port rejections
Twilio's PortIn API exposes per-number rejection_reason and rejection_reason_code fields when a carrier declines a number, plus not_portability_reason_code for numbers that cannot be ported.
Checked 2026-10-01
- Vendor
- Twilio
- Product
- Twilio Phone Numbers
- Subsystem
- number-porting
- Deployment
- multi-tenant
- Region
- us
- Release range
- current as of 2026-10-01
- Checked
- 2026-10-01
Sources
- PortIn resource — Twilio · tier 2 current vendor documentation · PortIn resource > phone number properties
Cite this note
APA
WarmTransfer. (2026, October 1). Troubleshooting number port rejections: source note number-port-rejections-twilio-per-number-rejection-reason. WarmTransfer. https://warmtransfer.net/knowledge/claims/number-port-rejections-twilio-per-number-rejection-reason
BibTeX
@misc{warmtransfer-claim-number-port-rejections-twilio-per-number-rejection-reason,
title = {Troubleshooting number port rejections: source note number-port-rejections-twilio-per-number-rejection-reason},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/number-port-rejections-twilio-per-number-rejection-reason},
note = {Source note number-port-rejections-twilio-per-number-rejection-reason, checked 2026-10-01}
}