au coverage map
Check the au coverage map anywhere in Japan. Sogudo shows estimated au 4G and 5G network coverage at street level - computed from public antenna data, so you can see what au actually delivers at your address before you commit.
How good is au coverage?
au has one of the largest networks in Japan, with solid 4G reach beyond the cities and growing 5G in larger towns. But au coverage changes from street to street - use the map above to check the expected signal exactly where you need it.
au 5G coverage
Switch the map to 5G to see au 5G coverage areas. Where 5G is unavailable, the phone falls back to au 4G. The au 5G map is modeled from antenna data and updated monthly.
Check au coverage at your address
Enter an address or postcode and Sogudo shows the expected au coverage and network type at that exact point. Move the marker to compare neighbouring streets - useful for a new flat, office or trip.
au compared with NTT docomo, SoftBank
The best network depends on location. Compare the au coverage map with NTT docomo, SoftBank at the same address to see who delivers the strongest signal where you are.
Frequently asked questions about au coverage
Does au have good coverage in Japan?
au ranks No. 0 of 0 in Japan by site count. That is the national picture: coverage still changes street by street, so search your own address on the map above.
Does au offer 5G in Japan?
No. Our data shows no 5G network for au in Japan.
Is the au map up to date?
The map is built from antenna data dated , and the au network facts were last verified on . Sogudo does not resell au data.
Is Sogudo affiliated with au?
No. Sogudo is independent and computes coverage from public antenna data.