| 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 |
| 123.30.0.0/18 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.0.0/20 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.16.0/20 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.32.0/20 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.48.0/20 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.0.0/21 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.8.0/21 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.16.0/21 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.24.0/21 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.32.0/21 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.40.0/21 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.48.0/21 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.56.0/21 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.0.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.2.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.4.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.6.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.8.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.10.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.12.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.14.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.16.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.18.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.20.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.22.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.24.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.26.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.28.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.30.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.32.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.34.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.36.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.38.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.40.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.42.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.48.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.50.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.52.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.54.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.56.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.58.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.60.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.62.0/23 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.8.0/24 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.8.0/24 | WHOIS (APNIC) | Cuc Buu dien TW | VN |
| 123.30.9.0/24 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.10.0/24 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.29.0/24 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.34.0/24 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.37.0/24 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 123.30.40.0/24 | BGP route | AS45899 Vietnam Posts and Telecommunications (VNPT) | — |
| 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 |
| 123.30.1.160/28 | 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 |
| 123.30.3.16/29 | 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 |
| 123.30.3.48/29 | WHOIS (APNIC) | CPCKVANGVIETNAM-NET | VN |
| 123.30.3.56/29 | WHOIS (APNIC) | Cong ty CP Vang pho Wall | VN |
| 123.30.3.64/29 | WHOIS (APNIC) | Cty CP Chung khoan Dai Tay Duong | VN |
| 123.30.3.80/29 | WHOIS (APNIC) | Cong ty TNHH TOA Viet Nam | VN |
| 123.30.3.96/29 | WHOIS (APNIC) | COPHANCHUNGKHOANANPHAT-NET | VN |
| 123.30.3.104/29 | WHOIS (APNIC) | CKNGANHANGDONGA-NET | VN |
| 123.30.3.112/29 | WHOIS (APNIC) | TNHHCKNGANHANGTMCPNHAHANOI-NET | VN |
| 123.30.3.128/29 | WHOIS (APNIC) | Cong ty TNHH HOEV | VN |
| 123.30.3.136/29 | WHOIS (APNIC) | CPCKQUOCGIA-NET | VN |
| 123.30.3.144/29 | WHOIS (APNIC) | CHUNGKHOANNGANHANGDAUTUPHATTRIEN-NET | VN |
| 123.30.3.160/29 | WHOIS (APNIC) | VPDD YOUNGLIMWON SOFTLAB TAI HA NOI | VN |
| 123.30.3.200/29 | WHOIS (APNIC) | Hang thong tan AP (My) | VN |
| 123.30.3.208/29 | WHOIS (APNIC) | VPDD TDK Singapre tai HN | VN |
| 123.30.3.216/29 | WHOIS (APNIC) | VPDD MERCK SHARP & DOHME (ASIA) tai Ha Noi | VN |
| 123.30.3.224/29 | WHOIS (APNIC) | Cong ty CP Vang pho Wall | VN |
| 123.30.3.232/29 | WHOIS (APNIC) | VAN PHONG DAI DIEN MARUBENI CORPORATION TAI HA NOI | VN |
| 123.30.3.240/29 | WHOIS (APNIC) | TRUYENHINHCAPSTV-NET | VN |
| 123.30.3.248/29 | WHOIS (APNIC) | Bo Cong Thuong | VN |
| 123.30.11.0/29 | WHOIS (APNIC) | DIDONGVMS-NET | VN |
| 123.30.11.8/29 | WHOIS (APNIC) | TNHHKinhNoi-NET | VN |
| 123.30.11.16/29 | WHOIS (APNIC) | ERICSSONVIETNAM-NET | VN |
| 123.30.34.24/29 | WHOIS (APNIC) | Cong ty TNHH K+K FASHION | VN |
| 123.30.34.32/29 | WHOIS (APNIC) | Cong ty TNHH MAXTURN APPAREL | VN |
| 123.30.34.40/29 | WHOIS (APNIC) | Cong ty TNHH CJ GLS ( Viet Nam) Freight | VN |
| 123.30.34.56/29 | WHOIS (APNIC) | Cong ty TNHH YEN OF LONDON | VN |
| 123.30.34.64/29 | WHOIS (APNIC) | Cong ty TNHH Everbest Vietnam | VN |
| 123.30.34.72/29 | WHOIS (APNIC) | Cong ty TNHH Thuc pham Orion Vina | VN |