Die IP-Adresse 21.87.52 erfolgt über China Education and Research Network Center, es hat gehören zu den GGDV (Classless Inter-Domain Routing) 22.30.204.0/23 (Bereich 22.30.204.0, 22.30.205.255). Die autonomen Systemnummer (ASN) ist 4538.
| ASN | 4538 |
| Ausgehend von IP | 22.30.204.0 |
| Beendigung durch IP | 22.30.205.255 |
| ASN-Namen | China Education and Research Network Center |
| GGDV | 22.30.204.0/23 |
| Numerische IP | |
| Registrierung | |
| Letztes update | 27.12.2018 |

| Vorwahl des Landes | Land | Region | Stadt | Breitengrad | Länge | Letztes update | |
| IP2Location | US | USA | - | Houston | 29,7633 | -95,3633 | 2018-12-26 |
| MaxMind | US | USA | - | - | 37,751 | -97,822 | 2018-12-26 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.87.52.0 | 358036480 | 0 |
| 21.87.52.1 | 358036481 | 0 |
| 21.87.52.2 | 358036482 | 0 |
| 21.87.52.3 | 358036483 | 0 |
| 21.87.52.4 | 358036484 | 0 |
| 21.87.52.5 | 358036485 | 0 |
| 21.87.52.6 | 358036486 | 0 |
| 21.87.52.7 | 358036487 | 0 |
| 21.87.52.8 | 358036488 | 0 |
| 21.87.52.9 | 358036489 | 0 |
| 21.87.52.10 | 358036490 | 0 |
| 21.87.52.11 | 358036491 | 0 |
| 21.87.52.12 | 358036492 | 0 |
| 21.87.52.13 | 358036493 | 0 |
| 21.87.52.14 | 358036494 | 0 |
| 21.87.52.15 | 358036495 | 0 |
| 21.87.52.16 | 358036496 | 0 |
| 21.87.52.17 | 358036497 | 0 |
| 21.87.52.18 | 358036498 | 0 |
| 21.87.52.19 | 358036499 | 0 |
| 21.87.52.20 | 358036500 | 0 |
| 21.87.52.21 | 358036501 | 0 |
| 21.87.52.22 | 358036502 | 0 |
| 21.87.52.23 | 358036503 | 0 |
| 21.87.52.24 | 358036504 | 0 |
| 21.87.52.25 | 358036505 | 0 |
| 21.87.52.26 | 358036506 | 0 |
| 21.87.52.27 | 358036507 | 0 |
| 21.87.52.28 | 358036508 | 0 |
| 21.87.52.29 | 358036509 | 0 |
| 21.87.52.30 | 358036510 | 0 |
| 21.87.52.31 | 358036511 | 0 |
| 21.87.52.32 | 358036512 | 0 |
| 21.87.52.33 | 358036513 | 0 |
| 21.87.52.34 | 358036514 | 0 |
| 21.87.52.35 | 358036515 | 0 |
| 21.87.52.36 | 358036516 | 0 |
| 21.87.52.37 | 358036517 | 0 |
| 21.87.52.38 | 358036518 | 0 |
| 21.87.52.39 | 358036519 | 0 |
| 21.87.52.40 | 358036520 | 0 |
| 21.87.52.41 | 358036521 | 0 |
| 21.87.52.42 | 358036522 | 0 |
| 21.87.52.43 | 358036523 | 0 |
| 21.87.52.44 | 358036524 | 0 |
| 21.87.52.45 | 358036525 | 0 |
| 21.87.52.46 | 358036526 | 0 |
| 21.87.52.47 | 358036527 | 0 |
| 21.87.52.48 | 358036528 | 0 |
| 21.87.52.49 | 358036529 | 0 |
| 21.87.52.50 | 358036530 | 0 |
| 21.87.52.51 | 358036531 | 0 |
| 21.87.52.52 | 358036532 | 0 |
| 21.87.52.53 | 358036533 | 0 |
| 21.87.52.54 | 358036534 | 0 |
| 21.87.52.55 | 358036535 | 0 |
| 21.87.52.56 | 358036536 | 0 |
| 21.87.52.57 | 358036537 | 0 |
| 21.87.52.58 | 358036538 | 0 |
| 21.87.52.59 | 358036539 | 0 |
| 21.87.52.60 | 358036540 | 0 |
| 21.87.52.61 | 358036541 | 0 |
| 21.87.52.62 | 358036542 | 0 |
| 21.87.52.63 | 358036543 | 0 |
| 21.87.52.64 | 358036544 | 0 |
| 21.87.52.65 | 358036545 | 0 |
| 21.87.52.66 | 358036546 | 0 |
| 21.87.52.67 | 358036547 | 0 |
| 21.87.52.68 | 358036548 | 0 |
| 21.87.52.69 | 358036549 | 0 |
| 21.87.52.70 | 358036550 | 0 |
| 21.87.52.71 | 358036551 | 0 |
| 21.87.52.72 | 358036552 | 0 |
| 21.87.52.73 | 358036553 | 0 |
| 21.87.52.74 | 358036554 | 0 |
| 21.87.52.75 | 358036555 | 0 |
| 21.87.52.76 | 358036556 | 0 |
| 21.87.52.77 | 358036557 | 0 |
| 21.87.52.78 | 358036558 | 0 |
| 21.87.52.79 | 358036559 | 0 |
| 21.87.52.80 | 358036560 | 0 |
| 21.87.52.81 | 358036561 | 0 |
| 21.87.52.82 | 358036562 | 0 |
| 21.87.52.83 | 358036563 | 0 |
| 21.87.52.84 | 358036564 | 0 |
| 21.87.52.85 | 358036565 | 0 |