5GeSIMMNO
au (KDDI) APN Settings
Copy-ready access point name values for au (KDDI) — verified on real devices, updated regularly.
Auto-provisioning
Many phones on au (KDDI) receive APN settings automatically when a SIM is inserted. Only enter these manually if your device shows no data connection or was purchased unlocked.
au (KDDI) APN Settings
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APNkey
au.au-net.ne.jp
Username
user@au.au-net.ne.jp
Password
au
Authentication
CHAP
APN type
default,supl,hipri
APN protocol
IPv4v6
APN roaming protocol
IPv4
Bearer
(leave blank)
MCC
440
MNC
50
Setup guide
How to enter APN settings
Tip
After saving, toggle Airplane Mode on and off for 10 seconds. This forces the phone to re-register with the network and pick up the new APN.
Troubleshooting
Common issues
No data on an unlocked or imported phone. Enter the APN by hand and restart. Imported phones often skip au's automatic setup, so the APN field starts empty. Set the APN to au.au-net.ne.jp with username user@au.au-net.ne.jp, password au, and CHAP authentication.
Connects but no data. Double-check the authentication type is CHAP and the username includes the full @au.au-net.ne.jp suffix. A missing suffix or the wrong auth type is the usual cause.
Settings reset after an update. A software update occasionally clears the APN. Re-enter au.au-net.ne.jp with its username and password.
FAQ
Frequently asked questions
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