| Hokkaido Broadcasting Co., Ltd. (HBC) |
The STVradio Broadcasting Co., Ltd. (STV Radio) |
| Aomori Broadcasting Corporation (RAB) |
Iwate Broadcasting Co., Ltd. (IBC) |
| TOHOKU BROADCASTING CO., LTD. (TBC) |
Akita Broadcasting System (ABS) |
| Yamagata Broadcasting Co., Ltd. (YBC) |
RADIO FUKUSHIMA CO., LTD. (rfc) |
| Nippon Cultural Broadcasting, Inc. (QR) |
Nippon Broadcasting System, Inc. (LF) |
| Tochigi Broadcasting Co., Ltd. (CRT) |
Ibaraki Broadcasting System (IBS) |
| Broadcasting System of Niigata Inc. (BSN) |
Shin-etsu Broadcasting Co., Ltd. (SBC) |
| Yamanashi Broadcasting System Inc. (YBS) |
Shizuoka Broadcasting System (SBS) |
| Kitanihon Broadcasting Co., Ltd. (KNB) |
Hokuriku Broadcasting Co., Ltd. (MRO) |
| Fukui Broadcasting Corporation (FBC) |
TOKAI RADIO BROADCASTING CO., LTD. (SF) |
| Kyoto Broadcasting System Company Limited (KBS) |
MBS RADIO, INC (MBS RADIO) |
| Asahi Radio Broadcasting Corporation (ABC) |
Osaka Broadcasting Corporation (OBC) |
| Wakayama Broadcasting System Co., Ltd. (WBS) |
Broadcasting System of San-in (BSS) |
| Sanyo Broadcasting Co., Ltd. (RSK) |
RCC BROADCASTING CO., LTD (RCC) |
| Yamaguchi Broadcasting Co., Ltd. (KRY) |
Shikoku Broadcasting Co., Ltd. (JRT) |
| Nishinippon Broadcasting Co., Ltd. (RNC) |
Nankai Broadcasting Co., Ltd. (RNB) |
| Kochi Broadcasting Co., Ltd. (RKC) |
Kyushu Asahi Broadcasting Co., Ltd. (KBC) |
| Nagasaki Broadcasting Company (NBC) |
KUMAMOTO BROADCASTING CO., LTD. (RKK) |
| Oita Broadcasting System, Inc. (OBS) |
Miyazaki Broadcasting Co., Ltd. (mrt) |
| Minaminihon Broadcasting Co., Ltd. (MBC) |
RADIO OKINAWA CORPORATION (ROK) |
