A2P & Twilio error decoder · Delivery error
Twilio error 30006: Landline or unreachable carrier
The number is a landline or on a carrier that can’t receive SMS.
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How to fix error 30006
- Check the line type before sending
- Call landlines instead of texting
Common causes
- The number is a landline
- The number belongs to a carrier or line type that can’t receive SMS
- Some VoIP numbers don’t accept texts
How to stop it happening again
- Check the line type with Twilio Lookup before texting
- Collect a mobile number on your forms, or ask customers which number to text
- Call landline contacts instead of texting them
How long does a fix take?
Fixed by texting a mobile number instead.
Still seeing error 30006?
I’ve fixed this for businesses on Twilio, GoHighLevel, RingCentral and more, with 80+ A2P registrations done. Send me the error and a screenshot and I’ll tell you exactly what to change.
Related delivery errors
Based on Twilio’s public error documentation and carrier guidelines. Carrier rules change, so treat this as guidance, not legal advice. Look up another code.
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