| Advanced Wireless Network Co. Ltd.(Enterprise/NIX) | AS45458 | Cable/DSL/ISP | Selective |
| Advanced Wireless Network Co. Ltd.(IIG) | AS45430 | Cable/DSL/ISP | Selective |
| Alibaba Cloud CDN | AS24429 | Content | Open |
| ANY DIGITAL PTE. LTD | AS140666 | Enterprise | Open |
| Bangmod Enterprise | AS58955 | Content | Open |
| BEDGE CO LIMITED | AS63139 | | Open |
| BEST IDC | AS59374 | Enterprise | Open |
| ByteArk | AS59238 | Content | Open |
| Cableconnect | AS135419 | Network Services | Open |
| CLOUDFOREST CO.,LTD. | AS142299 | Content | Open |
| COLODEE DIGITAL NETWORK | AS136523 | Content | Open |
| CS Loxinfo | AS4750 | Enterprise | Selective |
| CS LoxInfo (IIG) | AS7568 | Cable/DSL/ISP | Open |
| CS LoxInfo (IX) | AS45265 | Cable/DSL/ISP | Open |
| CSL IDC | AS9891 | Content | Selective |
| CSL Thai-IX Malaysia Route Servers | AS9741 | Route Server | Open |
| CSL Thai-IX Singapore Route Servers | AS7613 | Route Server | Open |
| Data Zone Company Limited | AS137566 | Content | Open |
| Dot Enterprise Co.,Ltd. | AS63989 | Enterprise | Open |
| Enjoyvc Cloud Group | AS136897 | Enterprise | Open |
| Google LLC | AS15169 | Content | Selective |
| International Gateway Co.,Ltd. (IIG) | AS137557 | NSP | Selective |
| International Gateway Co.,Ltd. (NIX) | AS140867 | NSP | Selective |
| Jastel Network Co.,LTD (Thailand) | AS45629 | NSP | Selective |
| Kaopu Cloud HK | AS138915 | Enterprise | Open |
| KIRZ | AS24187 | Cable/DSL/ISP | Open |
| LAOTELECOM | AS9873 | | Open |
| OK Network and Communications | AS140287 | Educational/Research | Open |
| POPIDC | AS131447 | | Open |
| SYMPHONY THAI - Internet Services | AS132280 | Cable/DSL/ISP | Selective |
| SYMPHONY THAI - IP Transit | AS132876 | NSP | Selective |
| TH-IX Route Servers | AS4652 | Route Server | Open |
| TPLC Holdings Ltd | AS55636 | | Open |
| United Information Highway (UIH-IIG) | AS45796 | NSP | Open |
| United Information Highway (UIH) | AS38794 | Cable/DSL/ISP | Open |
| VP InfoTech Co., Ltd. (VisperHost) | AS153996 | Enterprise | Open |
| Y.U.T Corporate (IIG) | AS152599 | Cable/DSL/ISP | Open |
| Y.U.T Corporate (NIX/ISP) | AS149766 | Cable/DSL/ISP | Open |