Les adresses IP débutant par 211.81.97 sont fournies par China Education and Research Network Center, elles appartiennent au CIDR (Classless Inter-Domain Routing) 211.80.0.0/13, le bloc IP comprant les adresses de 211.80.0.0 à 211.87.255.255). Le numéro de système autonome (ASN) est 4538.
| ASN | 4538 |
| IP commençant par | 211.80.0.0 |
| IP se terminant par | 211.87.255.255 |
| Nom ASN | China Education and Research Network Center |
| CDIR | 211.80.0.0/13 |
| IP numérique | |
| Registe | apnic |
| Dernière mise à jour | 26/02/2019 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | CN | Chine | - | Hebei | 39,1478 | 117,1967 | 2019-02-26 |
| MaxMind | CN | Chine | - | Hebei | 39,8897 | 115,275 | 2019-02-26 |
| Whois | CN | - | - | - | 104 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 211.81.97.0 | 3545325824 | 0 |
| 211.81.97.1 | 3545325825 | 0 |
| 211.81.97.2 | 3545325826 | 0 |
| 211.81.97.3 | 3545325827 | 0 |
| 211.81.97.4 | 3545325828 | 0 |
| 211.81.97.5 | 3545325829 | 0 |
| 211.81.97.6 | 3545325830 | 0 |
| 211.81.97.7 | 3545325831 | 0 |
| 211.81.97.8 | 3545325832 | 0 |
| 211.81.97.9 | 3545325833 | 0 |
| 211.81.97.10 | 3545325834 | 0 |
| 211.81.97.11 | 3545325835 | 0 |
| 211.81.97.12 | 3545325836 | 0 |
| 211.81.97.13 | 3545325837 | 0 |
| 211.81.97.14 | 3545325838 | 0 |
| 211.81.97.15 | 3545325839 | 0 |
| 211.81.97.16 | 3545325840 | 0 |
| 211.81.97.17 | 3545325841 | 0 |
| 211.81.97.18 | 3545325842 | 0 |
| 211.81.97.19 | 3545325843 | 0 |
| 211.81.97.20 | 3545325844 | 0 |
| 211.81.97.21 | 3545325845 | 0 |
| 211.81.97.22 | 3545325846 | 0 |
| 211.81.97.23 | 3545325847 | 0 |
| 211.81.97.24 | 3545325848 | 0 |
| 211.81.97.25 | 3545325849 | 0 |
| 211.81.97.26 | 3545325850 | 0 |
| 211.81.97.27 | 3545325851 | 0 |
| 211.81.97.28 | 3545325852 | 0 |
| 211.81.97.29 | 3545325853 | 0 |
| 211.81.97.30 | 3545325854 | 0 |
| 211.81.97.31 | 3545325855 | 0 |
| 211.81.97.32 | 3545325856 | 0 |
| 211.81.97.33 | 3545325857 | 0 |
| 211.81.97.34 | 3545325858 | 0 |
| 211.81.97.35 | 3545325859 | 0 |
| 211.81.97.36 | 3545325860 | 0 |
| 211.81.97.37 | 3545325861 | 0 |
| 211.81.97.38 | 3545325862 | 0 |
| 211.81.97.39 | 3545325863 | 0 |
| 211.81.97.40 | 3545325864 | 0 |
| 211.81.97.41 | 3545325865 | 0 |
| 211.81.97.42 | 3545325866 | 0 |
| 211.81.97.43 | 3545325867 | 0 |
| 211.81.97.44 | 3545325868 | 0 |
| 211.81.97.45 | 3545325869 | 0 |
| 211.81.97.46 | 3545325870 | 0 |
| 211.81.97.47 | 3545325871 | 0 |
| 211.81.97.48 | 3545325872 | 0 |
| 211.81.97.49 | 3545325873 | 0 |
| 211.81.97.50 | 3545325874 | 0 |
| 211.81.97.51 | 3545325875 | 0 |
| 211.81.97.52 | 3545325876 | 0 |
| 211.81.97.53 | 3545325877 | 0 |
| 211.81.97.54 | 3545325878 | 0 |
| 211.81.97.55 | 3545325879 | 0 |
| 211.81.97.56 | 3545325880 | 0 |
| 211.81.97.57 | 3545325881 | 0 |
| 211.81.97.58 | 3545325882 | 0 |
| 211.81.97.59 | 3545325883 | 0 |
| 211.81.97.60 | 3545325884 | 0 |
| 211.81.97.61 | 3545325885 | 0 |
| 211.81.97.62 | 3545325886 | 0 |
| 211.81.97.63 | 3545325887 | 0 |
| 211.81.97.64 | 3545325888 | 0 |
| 211.81.97.65 | 3545325889 | 0 |
| 211.81.97.66 | 3545325890 | 0 |
| 211.81.97.67 | 3545325891 | 0 |
| 211.81.97.68 | 3545325892 | 0 |
| 211.81.97.69 | 3545325893 | 0 |
| 211.81.97.70 | 3545325894 | 0 |
| 211.81.97.71 | 3545325895 | 0 |
| 211.81.97.72 | 3545325896 | 0 |
| 211.81.97.73 | 3545325897 | 0 |
| 211.81.97.74 | 3545325898 | 0 |
| 211.81.97.75 | 3545325899 | 0 |
| 211.81.97.76 | 3545325900 | 0 |
| 211.81.97.77 | 3545325901 | 0 |
| 211.81.97.78 | 3545325902 | 0 |
| 211.81.97.79 | 3545325903 | 0 |
| 211.81.97.80 | 3545325904 | 0 |
| 211.81.97.81 | 3545325905 | 0 |
| 211.81.97.82 | 3545325906 | 0 |
| 211.81.97.83 | 3545325907 | 0 |
| 211.81.97.84 | 3545325908 | 0 |
| 211.81.97.85 | 3545325909 | 0 |