encryptSIM network operator guide
KDDI eSIM destinations
KDDI can be available through encryptSIM in 1 supported destinations, with listed service types 5G / 4G / LTE.
5G 4G LTE
Using encryptSIM with KDDI
Use this page to see where encryptSIM can use KDDI, then open each destination guide to compare the other supported networks available there.
KDDI supported destinations
These are the destinations where KDDI can be one of the available mobile networks for encryptSIM data.
KDDI mobile coverage map
Explore operator coverage layers for the supported destinations where map data is available. The map is practical coverage context only; it does not guarantee indoor signal, speed, roaming availability, or service at every point.
KDDI network identifiers
These public MCC/MNC identifiers can help recognize local network names a device may show during manual network selection. They are technical network identifiers, not a speed or availability guarantee.
| Destination | Local network | PLMN | Listed bands |
|---|---|---|---|
| Japan | KDDI Corporation Brand: au | 440-50 MCC 440 路 MNC 50 |
CDMA2000 850 / CDMA2000 2100 / LTE 700 / LTE 850 / LTE 1500 / LTE 2100 / TD-LTE 3500 |
| Japan | KDDI Corporation Brand: au | 440-51 MCC 440 路 MNC 51 |
CDMA2000 850 / CDMA2000 2100 / LTE 700 / LTE 850 / LTE 1500 / LTE 2100 / TD-LTE 3500 |
| Japan | KDDI Corporation Brand: au | 440-52 MCC 440 路 MNC 52 |
CDMA2000 850 / CDMA2000 2100 / LTE 700 / LTE 850 / LTE 1500 / LTE 2100 / TD-LTE 3500 |
| Japan | KDDI Corporation Brand: au | 440-53 MCC 440 路 MNC 53 |
CDMA2000 850 / CDMA2000 2100 / LTE 700 / LTE 850 / LTE 1500 / LTE 2100 / TD-LTE 3500 |
| Japan | KDDI Corporation Brand: au | 440-54 MCC 440 路 MNC 54 |
CDMA2000 850 / CDMA2000 2100 / LTE 700 / LTE 850 / LTE 1500 / LTE 2100 / TD-LTE 3500 |
| Japan | KDDI Corporation Brand: au | 440-70 MCC 440 路 MNC 70 |
CDMA2000 850 / CDMA2000 2100 / LTE 700 / LTE 850 / LTE 1500 / LTE 2100 / TD-LTE 3500 |
| Japan | KDDI Corporation Brand: au | 440-71 MCC 440 路 MNC 71 |
CDMA2000 850 / CDMA2000 2100 / LTE 700 / LTE 850 / LTE 1500 / LTE 2100 / TD-LTE 3500 |
| Japan | KDDI Corporation Brand: au | 440-72 MCC 440 路 MNC 72 |
CDMA2000 850 / CDMA2000 2100 / LTE 700 / LTE 850 / LTE 1500 / LTE 2100 / TD-LTE 3500 |
| Japan | KDDI Corporation Brand: au | 440-73 MCC 440 路 MNC 73 |
CDMA2000 850 / CDMA2000 2100 / LTE 700 / LTE 850 / LTE 1500 / LTE 2100 / TD-LTE 3500 |
| Japan | KDDI Corporation Brand: au | 440-74 MCC 440 路 MNC 74 |
CDMA2000 850 / CDMA2000 2100 / LTE 700 / LTE 850 / LTE 1500 / LTE 2100 / TD-LTE 3500 |
| Japan | KDDI Corporation Brand: au | 440-75 MCC 440 路 MNC 75 |
CDMA2000 850 / CDMA2000 2100 / LTE 700 / LTE 850 / LTE 1500 / LTE 2100 / TD-LTE 3500 |
| Japan | KDDI Corporation Brand: au | 440-76 MCC 440 路 MNC 76 |
CDMA2000 850 / CDMA2000 2100 / LTE 700 / LTE 850 / LTE 1500 / LTE 2100 / TD-LTE 3500 |
Related operators in the same destinations
Practical checks before using KDDI
- Use the destination cards to see where KDDI can be available through encryptSIM.
- Use each destination page to see which other supported operators are available there.
- Keep data roaming enabled for the encryptSIM line.
- Actual service depends on device support, roaming availability, signal, local coverage, and congestion.
Check your eSIM device
Before using encryptSIM on KDDI or any listed destination, make sure your phone or tablet supports eSIM.
Network names you may see
KDDI
KDDI eSIM FAQ
Does encryptSIM work with KDDI?
Yes, where KDDI is available in the supported destinations listed on this page: Japan.
Do I need a local KDDI account?
No. encryptSIM is a separate eSIM data product. You do not need to open a direct local KDDI account for the data coverage listed here.
Can I force my phone to stay on KDDI?
Network selection depends on device settings, roaming availability, signal, local coverage, congestion, and local radio conditions.
Does 5G or 4G guarantee performance?
No. 5G, 4G, LTE, and 3G describe listed radio access. Actual performance depends on device support, signal, congestion, and plan conditions.