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LTE Plan/LTE Plan(V)

This is a rate plan for using 4G LTE Smartphones. Calls and SMS (C-mail) to au smartphones and au mobile phones are available at a reasonable charge.

Application Required


LTE Plan/LTE Plan(V) must be subscribed in combination with LTE Flat/LTE Flat(V) .(However, you can continue to use the rate plan only if you used LTE Plan/LTE Plan(V) before November 16, 2015.) A subscription to LTE NET (¥300/month) is required for Internet connection.

Rate plan image
Rate plan image

Basic Charge

Monthly basic charge When Everybody Discount[1]is applied ¥934
Before various discount services are applied ¥1,868
Free call allowance -
Domestic calling charge To au mobile phones Free between 1:00 and 21:00
¥20/30 sec between 21:00 and 1:00
To other carriers' mobile phones or landline ¥20/30 sec all day
Packet communications charge A subscription in combination with LTE Flat/LTE Flat(V) is required.★
Domestic SMS (C-mail) To au mobile phones Free
To other carriers' mobile phones and PHS Sending: ¥3/time
Receiving: Free
  • * This rate plan is exclusively for 4G LTE.
  • * Free call allowance is not included in basic charges.
  • [1] Everybody Discount is offered on the basis of a two-year contract. In the case of contract termination, temporary suspension or discontinuation of Everybody Discount during the contract period, a contract cancellation fee of ¥9,500 is incurred (excluding the renewal period) regardless of how many years you have subscribed to Everybody Discount. The two-year contract period will be renewed automatically unless you request termination.
    Everybody Discount
  • For Fx0 devices, LTE Flat cp (f・2GB) (Exclusive plan for Fx0 devices: ¥3,500/month) can be also selected.
    LTE Flat cp(f・2GB)(in Japanese only)
    LTE Flat cp (1GB) (¥2,680/month for up to 3 years) can be also selected.
    LTE Flat cp(1GB)(in Japanese only)

Combined as a set with Flat-rate Data

  Data quantity Monthly charge
LTE Flat/LTE Flat(V) 7GB ¥5,700/month
Combined as a set with LTE Flat

au Wi-Fi SPOT is available by subscribing to LTE Flat/LTE Flat(V). au also provides the home Wi-Fi router, "HOME SPOT CUBE2".
Click here for details

au Wi-Fi (in Japanese only)

Eligible models

LTE Plan LTE Plan(V)
4G LTE (excluding au VoLTE) smartphone 4G LTE (au VoLTE) smartphone
iPhone (excluding iPhone 4S) * This service is not available for 4G LTE(au VoLTE supported) mobile phones and 3G mobile phones.

Related service

This service offers free domestic calls to au mobile phones at a monthly flat rate of ¥477 for 24 hours!

au Flat Calling 24

Half-rate domestic calling all day no matter where you call!

Wide Calling 24

Data Charge

This service allows you to purchase data quantities in real time. If you purchase data quantities with Data Charge, no communications speed constraint is applied even if the total of the monthly data quantity you use exceeds 7GB.

Data Charge

Data Present

Give newly purchased data to friends and family. The person who receives the Data Present can increase the data amount they use by the amount given.

Data Present

Tethering Option

This option allows you to use your tablet or smartphone as a Wi-Fi router. Additional 500MB is added to the communications amount of 7GB that can be used without communications speed constraints.
(The additional data quantity of 500MB is not added during the free period of the option charge.)

Tethering Option

Universal service system

In accordance with the launch of the "Universal Service System", KDDI has begun imposing a "Universal Service Fee" on customers who signed contracts with us for their portion of usage since January, 2007.
See below for the details.

Universal service system


[Application of Discount]

  • If applying when making a new subscription or switching models, the rate plan and Flat-rate Data service become applicable from the date of subscription or the date of switching models (the charge is prorated). If changing the contract or switching to the model you bring to a shop, the service becomes applicable from the month following the month of the change or switch. If you cancel in the middle of a month, the rate plan is prorated while the Flat-rate Data service is not prorated and the flat rate is incurred.If you are subscribed to Everybody Discount and cancel LTE Plan , basic charges are not prorated and the flat rate is incurred.

[Notes on free calls to au mobile phones]

  • For calls that straddle the 1:00 or 21:00 time designations, charges are waived for the time segment straddling a time designation (30 seconds). Calls to special numbers including the Answering Service (Voice Mail) (1417) are not counted as free calls.
  • Should KDDI judge, for example, that a continuous call for a long period of time is affecting KDDI equipment, the call in question may be terminated.

[Flat-rate Data]

  • WiMAX 2+ packet communication charges are not eligible for the flat rate and maximum charges of LTE Flat/LTE Flat(V)
  • Data communications charges are not eligible for LTE Flat/LTE Flat(V) flat rate and maximum charges. Overseas Double-Teigaku applies only when automatically connected to an eligible telecommunications carrier.

[Regulations of 4G LTE / WiMAX 2+ / 3G communication speed]

  • If the total amount of communications of the month exceeds the data quantity for that month, the maximum communications speed for sending and receiving until the end of that month will be 128 kbps. (The communications speed constraint will be removed on the first day of the following month.) If you apply for the Extra Option, the communications speed constraint does not apply. Data quantities purchased with Data Charge can be used without any communications speed constraint.
  • To avoid network congestion, a limit will be placed on the communications speed for a whole day if you have used more than 6GB over the three most recent days (not including the day on which the restriction is applied). The restricted speed will differ depending on data traffic conditions. The constraint applies regardless of the remaining data amount.
  • Regardless of whether you are subscribed to a Flat-rate Data service, your line may be temporarily suspended if the cost of the packet communications you use becomes high.

[Communication amount notification]

  • You are notified that the amount of communications that you use exceeds 6GB or 7GB (additional 500MB when subscribed to the Tethering Option) with SMS (C-mail) the day after you exceed the amount.

[Optimization of communication]

  • LTE NET series packet communications may perform system optimization to improve the display speed of images and the waiting time before video playback begins.
Image files BMP, jpg, gif, PNG formats
Video files MPEG, AVI, MOV, FLV, MP4, 3GP, WebM, ASF, WMV formats
  • * HTTPS communications and files with email attachments are not optimized.
  • * Customers who do not need communication optimization can contact the Customer Center (157) to have optimization cancelled.
  • * Optimization is the compression and conversion of images to the appropriate size for a smartphone screen. Compressed and converted data cannot be restored.

[Communications charges for when using LTE Plan/LTE Plan(V) only]

  • If only LTE Plan/LTE Plan(V) is used, the domestic communications charge is ¥0.6/KB and the maximum domestic communications charge is ¥20,000/month.
  • * Applications for LTE Plan/LTE Plan(V) only are no longer accepted as of November 16, 2015.

*All of the indicated amounts exclude tax unless otherwise specified.