| 122.0.0.0/7 | WHOIS (APNIC) | Asia Pacific Network Information Center, Pty. Ltd. | AU |
| 123.16.0.0/12 | WHOIS (APNIC) | Vietnam Posts and Telecommunications Group | VN |
| 123.16.0.0/12 | APNIC assigned | — | VN |
| 123.16.0.0/16 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.17.0.0/16 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.18.0.0/16 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.19.0.0/16 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.20.0.0/16 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.21.0.0/16 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.22.0.0/16 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.23.0.0/16 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.24.0.0/16 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.25.0.0/16 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.26.0.0/16 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.27.0.0/16 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.28.0.0/16 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.29.0.0/16 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.16.0.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.16.64.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.16.128.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.16.192.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.17.0.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.17.64.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.17.128.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.17.192.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.18.0.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.18.64.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.18.128.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.18.192.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.19.0.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.19.64.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.19.128.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.19.192.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.20.0.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.20.64.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.20.128.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.20.192.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.21.0.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.21.64.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.21.128.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.21.192.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.22.0.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.22.64.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.22.128.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.22.192.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.23.0.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.23.64.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.23.128.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.23.192.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.24.0.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.24.64.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.24.128.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.24.192.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.8.0/24 | WHOIS (APNIC) | Cuc Buu dien TW | VN |
| 123.30.74.0/24 | WHOIS (APNIC) | Cuc Buu dien TW | VN |
| 123.30.75.0/24 | WHOIS (APNIC) | Cuc Buu dien TW | VN |
| 123.30.72.0/25 | WHOIS (APNIC) | Caravelle Hotel | VN |
| 123.30.72.128/25 | WHOIS (APNIC) | saigonriversidehotel-net | VN |
| 123.30.105.128/25 | WHOIS (APNIC) | thegioiao-net | VN |
| 123.30.71.0/26 | WHOIS (APNIC) | saigonnewworldhotel-net | VN |
| 123.30.105.0/26 | WHOIS (APNIC) | Cong ty TNHH Phan Mem Chau A (Asia soft Company) | VN |
| 123.30.6.0/27 | WHOIS (APNIC) | CONG TY CP DICH VU CNTT NAISCORP | VN |
| 123.30.6.64/27 | WHOIS (APNIC) | ONEPAY-NET | VN |
| 123.30.6.128/27 | WHOIS (APNIC) | DICHVUVIENTHONGVINAPHONE-NET | VN |
| 123.30.10.0/27 | WHOIS (APNIC) | TTDIENTUHANGHAI-NET | VN |
| 123.30.67.32/27 | WHOIS (APNIC) | Cong ty TNHH Luong toan Rang Dong | VN |
| 123.30.67.64/27 | WHOIS (APNIC) | Cong Ty Luat TNHH Duane Morris VietNam | VN |
| 123.30.67.96/27 | WHOIS (APNIC) | Cong ty Tan Cang Sai Gon | VN |
| 123.30.67.128/27 | WHOIS (APNIC) | Tuong MInh Co Ltd | VN |
| 123.30.67.160/27 | WHOIS (APNIC) | trungtamthongtindidong2-net | VN |
| 123.30.67.192/27 | WHOIS (APNIC) | Tuong MInh Co Ltd | VN |
| 123.30.71.128/27 | WHOIS (APNIC) | Chi Nhanh Cong ty CP Dich vu Vien Thong CMC | VN |
| 123.30.78.64/27 | WHOIS (APNIC) | VASC-No 33 Thai Ha, Dong Da, Ha Noi | VN |
| 123.30.1.160/28 | WHOIS (APNIC) | Cty CK Asean | VN |
| 123.30.1.192/28 | WHOIS (APNIC) | LIENDOANHVKX-NET | VN |
| 123.30.1.208/28 | WHOIS (APNIC) | Truong Dai hoc Nong nghiep1 | VN |
| 123.30.1.240/28 | WHOIS (APNIC) | TRUNG TAM THONG TIN DI DONG KV1(VMS1) | VN |
| 123.30.6.96/28 | WHOIS (APNIC) | DAISUQUANBALAN-NET | VN |
| 123.30.6.112/28 | WHOIS (APNIC) | CONG TY TNHH ERICSSON VIET NAM | VN |
| 123.30.7.16/28 | WHOIS (APNIC) | VIENTHONGCMC-NET | VN |
| 123.30.7.32/28 | WHOIS (APNIC) | VPBOLAODONGTHUONGBINH-NET | VN |
| 123.30.7.48/28 | WHOIS (APNIC) | Cong ty TNHH HOP TAC PHAT TRIEN THONG TIN MANG | VN |
| 123.30.7.64/28 | WHOIS (APNIC) | CONG TY TNHH ENKEI VIET NAM | VN |
| 123.30.7.128/28 | WHOIS (APNIC) | harveynash-net | VN |
| 123.30.7.144/28 | WHOIS (APNIC) | CPCKVINCOM-NET | VN |
| 123.30.65.0/28 | WHOIS (APNIC) | Cong Ty Luat TNHH Duane Morris VietNam | VN |
| 123.30.65.16/28 | WHOIS (APNIC) | Greystone Data Systems VietNam | VN |
| 123.30.65.32/28 | WHOIS (APNIC) | Cong ty CP Chung Khoan Phuong Dong | VN |
| 123.30.65.48/28 | WHOIS (APNIC) | Ngan Hang TMCP Lien Viet (Him Lam) | VN |
| 123.30.65.64/28 | WHOIS (APNIC) | Cong ty CP Cong Nghe Thuong Mai Masan | VN |
| 123.30.65.80/28 | WHOIS (APNIC) | Tuong MInh Co Ltd | VN |
| 123.30.65.96/28 | WHOIS (APNIC) | Thai Son Securities Incoporation | VN |
| 123.30.65.112/28 | WHOIS (APNIC) | Ngan Hang TMCP Lien Viet (Him Lam) | VN |
| 123.30.65.128/28 | WHOIS (APNIC) | Chi Nhanh Cong ty CP Dich vu Vien Thong CMC | VN |
| 123.30.65.144/28 | WHOIS (APNIC) | TCONG TY TNHH KIM KHI THYSSENKRUPP VIET NAM. | VN |
| 123.30.65.160/28 | WHOIS (APNIC) | Tong Cong Ty Khi Viet Nam | VN |
| 123.30.69.48/28 | WHOIS (APNIC) | Thai Son Securities Incoporation | VN |
| 123.30.3.16/29 | WHOIS (APNIC) | Dai hoc luat Ha Noi | VN |
| 123.30.3.24/29 | WHOIS (APNIC) | CUCCONGNGHETINHOCNGANHANG-NET | VN |
| 123.30.3.32/29 | WHOIS (APNIC) | VPDD XENER SYSTEM INC TAI HA NOI | VN |
| 123.30.3.40/29 | WHOIS (APNIC) | CONG TY CP DICH VU CNTT NAISCORP | VN |