A2P & Twilio error decoder · Delivery error
Twilio error 30003: Phone unreachable
The phone is off, out of service or can’t receive texts right now.
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How to fix error 30003
- Retry later
- If it keeps failing, mark the contact as unreachable
Common causes
- The phone is switched off or out of signal
- The handset can’t receive texts right now (full inbox, roaming limits)
- A temporary network issue on the recipient’s carrier
How to stop it happening again
- Retry later instead of sending again immediately
- Mark contacts as unreachable after repeated failures
- Clean your contact list regularly
How long does a fix take?
Often clears up on its own once the phone is back on the network.
Still seeing error 30003?
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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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