Die IP-Adresse 21.78.55 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 | 04.11.2017 |

| Vorwahl des Landes | Land | Region | Stadt | Breitengrad | Länge | Letztes update | |
| IP2Location | US | USA | - | Columbus | 39,9664 | -83,0128 | 2017-11-04 |
| MaxMind | US | USA | - | - | 37,751 | -97,822 | 2017-11-04 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.78.55.0 | 357447424 | 0 |
| 21.78.55.1 | 357447425 | 0 |
| 21.78.55.2 | 357447426 | 0 |
| 21.78.55.3 | 357447427 | 0 |
| 21.78.55.4 | 357447428 | 0 |
| 21.78.55.5 | 357447429 | 0 |
| 21.78.55.6 | 357447430 | 0 |
| 21.78.55.7 | 357447431 | 0 |
| 21.78.55.8 | 357447432 | 0 |
| 21.78.55.9 | 357447433 | 0 |
| 21.78.55.10 | 357447434 | 0 |
| 21.78.55.11 | 357447435 | 0 |
| 21.78.55.12 | 357447436 | 0 |
| 21.78.55.13 | 357447437 | 0 |
| 21.78.55.14 | 357447438 | 0 |
| 21.78.55.15 | 357447439 | 0 |
| 21.78.55.16 | 357447440 | 0 |
| 21.78.55.17 | 357447441 | 0 |
| 21.78.55.18 | 357447442 | 0 |
| 21.78.55.19 | 357447443 | 0 |
| 21.78.55.20 | 357447444 | 0 |
| 21.78.55.21 | 357447445 | 0 |
| 21.78.55.22 | 357447446 | 0 |
| 21.78.55.23 | 357447447 | 0 |
| 21.78.55.24 | 357447448 | 0 |
| 21.78.55.25 | 357447449 | 0 |
| 21.78.55.26 | 357447450 | 0 |
| 21.78.55.27 | 357447451 | 0 |
| 21.78.55.28 | 357447452 | 0 |
| 21.78.55.29 | 357447453 | 0 |
| 21.78.55.30 | 357447454 | 0 |
| 21.78.55.31 | 357447455 | 0 |
| 21.78.55.32 | 357447456 | 0 |
| 21.78.55.33 | 357447457 | 0 |
| 21.78.55.34 | 357447458 | 0 |
| 21.78.55.35 | 357447459 | 0 |
| 21.78.55.36 | 357447460 | 0 |
| 21.78.55.37 | 357447461 | 0 |
| 21.78.55.38 | 357447462 | 0 |
| 21.78.55.39 | 357447463 | 0 |
| 21.78.55.40 | 357447464 | 0 |
| 21.78.55.41 | 357447465 | 0 |
| 21.78.55.42 | 357447466 | 0 |
| 21.78.55.43 | 357447467 | 0 |
| 21.78.55.44 | 357447468 | 0 |
| 21.78.55.45 | 357447469 | 0 |
| 21.78.55.46 | 357447470 | 0 |
| 21.78.55.47 | 357447471 | 0 |
| 21.78.55.48 | 357447472 | 0 |
| 21.78.55.49 | 357447473 | 0 |
| 21.78.55.50 | 357447474 | 0 |
| 21.78.55.51 | 357447475 | 0 |
| 21.78.55.52 | 357447476 | 0 |
| 21.78.55.53 | 357447477 | 0 |
| 21.78.55.54 | 357447478 | 0 |
| 21.78.55.55 | 357447479 | 0 |
| 21.78.55.56 | 357447480 | 0 |
| 21.78.55.57 | 357447481 | 0 |
| 21.78.55.58 | 357447482 | 0 |
| 21.78.55.59 | 357447483 | 0 |
| 21.78.55.60 | 357447484 | 0 |
| 21.78.55.61 | 357447485 | 0 |
| 21.78.55.62 | 357447486 | 0 |
| 21.78.55.63 | 357447487 | 0 |
| 21.78.55.64 | 357447488 | 0 |
| 21.78.55.65 | 357447489 | 0 |
| 21.78.55.66 | 357447490 | 0 |
| 21.78.55.67 | 357447491 | 0 |
| 21.78.55.68 | 357447492 | 0 |
| 21.78.55.69 | 357447493 | 0 |
| 21.78.55.70 | 357447494 | 0 |
| 21.78.55.71 | 357447495 | 0 |
| 21.78.55.72 | 357447496 | 0 |
| 21.78.55.73 | 357447497 | 0 |
| 21.78.55.74 | 357447498 | 0 |
| 21.78.55.75 | 357447499 | 0 |
| 21.78.55.76 | 357447500 | 0 |
| 21.78.55.77 | 357447501 | 0 |
| 21.78.55.78 | 357447502 | 0 |
| 21.78.55.79 | 357447503 | 0 |
| 21.78.55.80 | 357447504 | 0 |
| 21.78.55.81 | 357447505 | 0 |
| 21.78.55.82 | 357447506 | 0 |
| 21.78.55.83 | 357447507 | 0 |
| 21.78.55.84 | 357447508 | 0 |
| 21.78.55.85 | 357447509 | 0 |