KDDI to End CDMA 1X WIN Service for 3G Mobile Phones on March 31, 2022

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  • KDDI CORPORATION
  • OKINAWA CELLULAR TELEPHONE COMPANY

November 29,2021

KDDI CORPORATION and OKINAWA CELLULAR TELEPHONE COMPANY will terminate the au 3G mobile phone service CDMA 1X WIN on 31 March, 2022.
Accordingly, mobile phone handset models compatible with CDMA 1X WIN, those not compatible with the au VoLTE high-quality voice call audio service, as well as services for UQ mobile SIM cards not compatible with VoLTE, will no longer be operable from April 1, 2022 onward [Jump to the applicable section1].

■Background

CDMA 1X WIN service became available in November 2003, while sales of au VoLTE non-compatible phone models began in September 2012. But the number of these users has now diminished amid the increasingly widespread use of the 5G and 4G LTE mobile phone services offering high-speed data transmission capability and the au VoLTE service offering high-quality audio for voice calls.
Another reason for discontinuing the CDMA 1X WIN service is that it will free up the relevant frequency bandwidth sectors so that we can use their capacity to further ensure our customers future comfort and convenience in using au mobile and UQ mobile phone services.

■Actions for affected customers

Because of these changes, it will be necessary for customers currently using handset models compatible with CDMA 1X WIN, SIM cards not compatible with VoLTE, or handsets not compatible with au VoLTE to switch to 5G or 4G LTE handsets that are compatible with VoLTE. Affected customers will be able to carry out the relevant procedures free of charge, and customers using CDMA 1X WIN can utilize a Open link in a new windowservice for replacing some handsets free of charge.

If affected customers do not change their handset by March 31, 2022, their mobile phone contract may be canceled or temporarily suspended on April 1, 2022. No contract cancellation fees or other administrative fees will be incurred for canceling the contract, and no monthly usage fees or other fees will be incurred from April 1, 2022 onward.

By providing more convenient communication services, KDDI and OKINAWA CELLULAR are continually working to increase the value of our customers experience.

See attached reference materials for details.

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1. Actions related to the termination of CDMA 1X WIN

In light of the termination of CDMA 1X WIN, customers currently in a contract for CDMA 1X WIN or a SIM card not compatible with VoLTE will automatically have their mobile phone contracts canceled on April 1, 2022. Customers' mobile phone numbers and other information will be stored temporarily after the contract is automatically canceled, but storage of this information will end on June 30, 2022.
On April 1, 2022, customers using 4G LTE-compatible models not compatible with au VoLTE will automatically have their services temporarily suspended, whereby no basic fees or other monthly usage fees will be incurred, and mobile phone numbers and other information will be stored temporarily. This temporary suspension will end on June 30, 2022, upon which affected customers' mobile phone contracts will be canceled.

  • (1)

    Models, payment plans, and services affected by the end of the CDMA 1X WIN service

    auUQ mobile
    CDMA 1X WIN4G LTESIM cards not compatible with VoLTE
    Phone models that will become inoperable CDMA 1X WIN-compatible models Models not compatible with au VoLTE
    Date when service ends Ends on March 31, 2022 Ends on March 31, 2022 only for customers using models not compatible with au VoLTE [Jump to the applicable section2] Ends on March 31, 2022 [Jump to the applicable section1]
    CDMA 1X WIN payment plans/services to be discontinued CDMA 1X WIN payment plans/services － Payment plans for SIM cards not compatible with VoLTE [Jump to the applicable section1]

    [Status of contracts on April 1, 2022]

    auUQ mobile
    CDMA 1X WIN4G LTESIM cards not compatible with VoLTE
    Affected customers Customers with a CDMA 1X WIN contract Customers using a model not compatible with au VoLTE [Jump to the applicable section2] Customers with a contract for a SIM card not compatible with VoLTE [Jump to the applicable section1]
    Treatment of contracts
    • ・Contract will be automatically canceled with no contract cancellation fee.
    • ・Phone number and email address will be stored free of charge [Jump to the applicable section4].
    		 Contract will be automatically suspended, and no contract-related administrative fees or monthly information storage fees will be incurred in relation to suspension [Jump to the applicable section3].
    • ・Contract will be automatically canceled with no contract cancellation fee.
    • ・Phone number and email address will be stored free of charge.
  • (2)

    Procedures that can be carried out from April 1, 2022 onward

    auUQ mobile
    CDMA 1X WIN4G LTESIM cards not compatible with VoLTE
    Affected customers Customers with an automatically canceled contract [Jump to the applicable section4] Customers with an automatically suspended contract Customers with an automatically canceled contract
    Available procedures A new contract can be made with au 5G/4G LTE using the phone number and other details in our storage. No contract-related administrative fees will be incurred for the new contract. The following two procedures are available:
    (1) Resume use of telecommunications. Contract-related administrative fees associated with resuming use will be free of charge [Jump to the applicable section5].
    [2] Cancel the mobile phone contract. No contract cancellation fee will be incurred.    		 A new contract can be made with a UQ mobile SIM card compatible with VoLTE using the phone number and other details in our storage. No contract-related administrative fees will be incurred for the new contract.
    Applicable period for procedures On June 30, 2022, we will stop accepting requests for procedures, and we will stop storing phone numbers and other information. On June 30, 2022, we will stop accepting requests for procedures, and mobile phone contracts will be automatically canceled. No contract cancellation fee will be incurred. On June 30, 2022, we will stop accepting requests for procedures, and we will stop storing phone numbers and other information.

2. Phone models that will become inoperable

  • (1)

    CDMA 1X WIN-compatible models

    au Keitai CA001、CA002、CA003、CA004、CA005、CA006、CA007、CAY01、E02SA、E03CA、E05SH、E06SH、E07K、E08T、E09F、E10K、EY01K、EY02K、EY03K、F001、H001、HIY01、HIY02、K001、K002、K006、K007、K009、K011、KYX02、KYX03、KYX04、KYY03、KYY06、KYY08、KYY09、KYY10、NS01、NS02、P001、PT003、S001、S002、S003、S004、S005、S006、S007、SA001、SA002、SH001、SH002、SH003、SH004、SH005、SH006、SH007、SH008、SH009、SH010、SH011、SHY01、SOX01、SOX02、SOY01、SOY02、SOY03、SOY04、SOY05、T001、T002、T003、T004、T005、T006、T007、T008、TSX04、TSX05、TSX06、TSY01、W32H、W32S、W41CA、W41H、W41S、W41SH、W42CA、W42H、W42S、W42SA、W43CA、W43H、W43K、W43S、W43SA、W44K、W44S、W44T、W45T、W46T、W47T、W51CA、W51H、W51K、W51P、W51S、W51SA、W51SH、W51T、W52CA、W52H、W52K、W52P、W52S、W52SA、W52SH、W52T、W53CA、W53H、W53K、W53S、W53SA、W53T、W54S、W54SA、W54T、W55SA、W55T、W56T、W61CA、W61H、W61K、W61P、W61PT、W61S、W61SA、W61SH、W61T、W62CA、W62H、W62K、W62P、W62S、W62SA、W62SH、W62T、W63CA、W63H、W63K、W63S、W63SA、W63SH、W63T、W64K、W64S、W64SA、W64SH、W64T、W65K、W65S、W65T
    Kantan Keitai K003、K004、K005、K008、K010、K012、PT001、PT002、W62PT
    mamorino KYY01 (mamorino)、KYY02 (mamorino2)、KYY05 (mamorino3)
    au Smartphones E30HT、E31T、E31TF、EIS01PT、IS01、IS02、IS03、IS04、IS05、IS06、IS11CA、IS11LG、IS11N、IS11PT、IS11S、IS11SH、IS11T、IS12F、IS12M、IS12S、IS12SH、IS12T、IS13SH、IS14SH、IS15SH、IS17SH、ISW11F、ISW11HT、ISW11K、ISW11M、ISW11SC、ISW12HT、ISW13F、ISW13HT、ISW16SH、KYY04、SHX11、SHX12
    iPhone iPhone 4s
    Data Terminals HID01、HID02、HID03、HID04、HWD06、HWD07、HWD08、HWD13、PTD05、W04K、W05K、W06K、W07K
    Telecomms Modules WM-M200、WM-M200A、WM-M210、WM-M210A、WM-M300、WM-M320、KCMX-100、KCMV-200、KCMV-210、KCMV-310、KCMP、HWM02
    Other AAT01MBM (ETBW11AA)、KYS11 (Anshin GPS)、SP01 (PHOTO-U)、SP03 (PHOTO-U2)、ZTS11 (PHOTO-U TV)、ZTS12 (PHOTO-U TV [8GB])
    • Except for iPhone 4s and Telecomms Modules, the above items are marked with the au model number on the mobile phone body, or on the back side of the battery cover. Please use these markings to check your au device.
  • (2)

    Models not compatible with au VoLTE

    au Keitai SHF31 (AQUOS K)
    au Smartphones CAL21、FJL21、FJL22、HTL21、HTL22、HTL23、HTX21、KC01、KYL21、KYL22、KYL23、KYY21、KYY22、KYY23、KYY24、LGL21、LGL22、LGL23、LGL24、LGL25、PTL21、SCL21、SCL22、SCL23、SCL24、SHL21、SHL22、SHL23、SHL24、SHL25、SOL21、SOL22、SOL23、SOL24、SOL25、SOL26
    UQ mobile Smartphones KC-01、LG G3 Beat
    iPhone iPhone 5、iPhone 5s、iPhone 5c
    • Except for iPhone 5, iPhone 5s and iPhone 5c, the above items are marked with the au model number on the mobile phone body, or on the back side of the battery cover. Please use these markings to check your au device.
    • iPhone 6 is compatible with au VoLTE, but it will not be compatible with VoLTE if it is used with a UQ mobile SIM card that is not compatible with VoLTE. In such a case it will be unusable from April 1, 2022 onward.

3. Payment plans/services to be discontinued

  • (1)

    CDMA 1X WIN payment plans/services

    Plan E, Plan E Simple, Plan F (IS), Plan F (IS) Simple, Plan L, Plan L Simple, Plan LL, Plan LL Simple, Plan M, Plan M Simple, Plan S, Plan S Simple, Plan SS, Plan SS Simple, Plan W, Plan W Simple, Plan Z Simple, Simple Plan L, Simple Plan S, Daytime L, Daytime L Simple, Daytime S, Daytime S Simple, Kakeho (3G KEITAI), Kakeho (3G KEITAI with Data), WIN Single L, WIN Single L WiMAX (Simple), WIN Single L WiMAX (Full Support), WIN Single LL, WIN Single LL WiMAX (Simple), WIN Single LL WiMAX (Full Support), WIN Single M, WIN Single M WiMAX (Simple), WIN Single M WiMAX (Full Support), WIN Single S, WIN Single SS, WIN Single Flat WiMAX (Simple), WIN Single Flat, WIN Single Flat (Simple), WIN Single Flat (Full Support), WIN Single Flat WiMAX (Simple), WIN Single Flat WiMAX (Full Support), PHOTO-U Plan, PHOTO-U TV Plan, Anshin GPS Plan, Prepaid, Office Keitai Plan WIN, Business WIN Single Flat WiMAX (Simple Course), Business WIN Single Flat WiMAX (Full Support Course), 1x Single Plan A, 1x Single Plan B, 1x Module Plan L, 1x Module Plan M, 1x Module Plan S, WIN Module Plan L, WIN Module Plan M, WIN Module Plan S, WIN Module Flat

  • (2)

    Payment plans/services for UQ mobile SIM cards not compatible with VoLTE

    Oshaberi Plan (Chat Plan) S, Oshaberi Plan (Chat Plan) M, Oshaberi Plan (Chat Plan) L, Kurikoshi Plan (Carryover Plan) S, Kurikoshi Plan (Carryover Plan) M, Kurikoshi Plan (Carryover Plan) L, SUMAHO Plan S, SUMAHO Plan M, SUMAHO Plan R, SUMAHO Plan L, High-Speed Data + Voice Call Plan, Unlimited Data + Voice Call Plan, Pittari Plan (Right Fit Plan) S, Pittari Plan (Right Fit Plan) M, Pittari Plan (Right Fit Plan) L, UQ Ohanashi Plan S, UQ Ohanashi Plan M, UQ Ohanashi Plan L

    • Discontinuation does not apply to VoLTE-compatible SIM card payment plans/services with "(V)" at the end of the name.
  • [1]
    The High-Speed Data Plan and the Unlimited Data Plan with no voice call option are not included in the discontinued services. Customers with a contract for the High-Speed Data Plan or the Unlimited Data Plan with no voice call option will not have their contracts automatically canceled, and they can continue using their services from April 1, 2022 onward.
  • [2]
    Customers will be affected if they fulfill the conditions given below.
    ・ Those currently using the following au IC cards: "au Nano IC Card (LTE)" or "au Micro IC Card (LTE)"
    ・ Type of LTE service: LTE Dual (Data transmission + voice telephony)
    ・ Those who have purchased the latest device models registered with KDDI and OKINAWA CELLULAR (i.e., devices purchased at au shops): Models not compatible with au VoLTE
    * Customers who wish to continue using services after switching to an au IC card for a VoLTE-compatible model, for example, will be excluded from the automatic suspension. We will give separate information on how to carry out the relevant procedures.
  • [3]
    The universal service charge and phone relay service fees will not be incurred either.
  • [4]
    This does not apply to customers enrolled in the PHOTO-U Plan, PHOTO-U TV Plan, Anshin GPS Plan or Prepaid when the contract is automatically canceled. Also, this also does not apply to customers using a Telecomms Module when the contract is automatically canceled.
  • [5]
    Contract-related administrative fees will not be incurred in relation to changing handsets after resuming use. Open link in a new windowSee this page (in Japanese only) for the conditions regarding affected customers and other details.
  • The information contained in the news releases is current at the time of publication. Products, service fees,service content and specifications, contact information, and other details are subject to change without notice.