L'indirizzo IP 21.87.53 è fornito da China Education and Research Network Center, che è di proprietà del CIDR (Classless Inter-Domain Routing) 22.30.204.0/23, IP tra 22.30.204.0 a 22.30.205.255 ). Il numero di sistema autonomo (ASN) è 4538.
| ASN | 4538 |
| IP inizia con | 22.30.204.0 |
| IP finale con | 22.30.205.255 |
| ASN Nome | China Education and Research Network Center |
| CDIR | 22.30.204.0/23 |
| IP numerico | |
| Registe | |
| Ultimo aggiornamento | 09/10/2018 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | US | United States | - | Houston | 29,7633 | -95,3633 | 2018-10-08 |
| MaxMind | US | United States | - | - | 37,751 | -97,822 | 2018-10-08 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.87.53.0 | 358036736 | 0 |
| 21.87.53.1 | 358036737 | 0 |
| 21.87.53.2 | 358036738 | 0 |
| 21.87.53.3 | 358036739 | 0 |
| 21.87.53.4 | 358036740 | 0 |
| 21.87.53.5 | 358036741 | 0 |
| 21.87.53.6 | 358036742 | 0 |
| 21.87.53.7 | 358036743 | 0 |
| 21.87.53.8 | 358036744 | 0 |
| 21.87.53.9 | 358036745 | 0 |
| 21.87.53.10 | 358036746 | 0 |
| 21.87.53.11 | 358036747 | 0 |
| 21.87.53.12 | 358036748 | 0 |
| 21.87.53.13 | 358036749 | 0 |
| 21.87.53.14 | 358036750 | 0 |
| 21.87.53.15 | 358036751 | 0 |
| 21.87.53.16 | 358036752 | 0 |
| 21.87.53.17 | 358036753 | 0 |
| 21.87.53.18 | 358036754 | 0 |
| 21.87.53.19 | 358036755 | 0 |
| 21.87.53.20 | 358036756 | 0 |
| 21.87.53.21 | 358036757 | 0 |
| 21.87.53.22 | 358036758 | 0 |
| 21.87.53.23 | 358036759 | 0 |
| 21.87.53.24 | 358036760 | 0 |
| 21.87.53.25 | 358036761 | 0 |
| 21.87.53.26 | 358036762 | 0 |
| 21.87.53.27 | 358036763 | 0 |
| 21.87.53.28 | 358036764 | 0 |
| 21.87.53.29 | 358036765 | 0 |
| 21.87.53.30 | 358036766 | 0 |
| 21.87.53.31 | 358036767 | 0 |
| 21.87.53.32 | 358036768 | 0 |
| 21.87.53.33 | 358036769 | 0 |
| 21.87.53.34 | 358036770 | 0 |
| 21.87.53.35 | 358036771 | 0 |
| 21.87.53.36 | 358036772 | 0 |
| 21.87.53.37 | 358036773 | 0 |
| 21.87.53.38 | 358036774 | 0 |
| 21.87.53.39 | 358036775 | 0 |
| 21.87.53.40 | 358036776 | 0 |
| 21.87.53.41 | 358036777 | 0 |
| 21.87.53.42 | 358036778 | 0 |
| 21.87.53.43 | 358036779 | 0 |
| 21.87.53.44 | 358036780 | 0 |
| 21.87.53.45 | 358036781 | 0 |
| 21.87.53.46 | 358036782 | 0 |
| 21.87.53.47 | 358036783 | 0 |
| 21.87.53.48 | 358036784 | 0 |
| 21.87.53.49 | 358036785 | 0 |
| 21.87.53.50 | 358036786 | 0 |
| 21.87.53.51 | 358036787 | 0 |
| 21.87.53.52 | 358036788 | 0 |
| 21.87.53.53 | 358036789 | 0 |
| 21.87.53.54 | 358036790 | 0 |
| 21.87.53.55 | 358036791 | 0 |
| 21.87.53.56 | 358036792 | 0 |
| 21.87.53.57 | 358036793 | 0 |
| 21.87.53.58 | 358036794 | 0 |
| 21.87.53.59 | 358036795 | 0 |
| 21.87.53.60 | 358036796 | 0 |
| 21.87.53.61 | 358036797 | 0 |
| 21.87.53.62 | 358036798 | 0 |
| 21.87.53.63 | 358036799 | 0 |
| 21.87.53.64 | 358036800 | 0 |
| 21.87.53.65 | 358036801 | 0 |
| 21.87.53.66 | 358036802 | 0 |
| 21.87.53.67 | 358036803 | 0 |
| 21.87.53.68 | 358036804 | 0 |
| 21.87.53.69 | 358036805 | 0 |
| 21.87.53.70 | 358036806 | 0 |
| 21.87.53.71 | 358036807 | 0 |
| 21.87.53.72 | 358036808 | 0 |
| 21.87.53.73 | 358036809 | 0 |
| 21.87.53.74 | 358036810 | 0 |
| 21.87.53.75 | 358036811 | 0 |
| 21.87.53.76 | 358036812 | 0 |
| 21.87.53.77 | 358036813 | 0 |
| 21.87.53.78 | 358036814 | 0 |
| 21.87.53.79 | 358036815 | 0 |
| 21.87.53.80 | 358036816 | 0 |
| 21.87.53.81 | 358036817 | 0 |
| 21.87.53.82 | 358036818 | 0 |
| 21.87.53.83 | 358036819 | 0 |
| 21.87.53.84 | 358036820 | 0 |
| 21.87.53.85 | 358036821 | 0 |