Die IP-Adresse 21.76.91 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 | 08.02.2018 |

| Vorwahl des Landes | Land | Region | Stadt | Breitengrad | Länge | Letztes update | |
| IP2Location | US | USA | - | Columbus | 39,9664 | -83,0128 | 2018-02-08 |
| MaxMind | US | USA | - | - | 37,751 | -97,822 | 2018-02-08 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.76.91.0 | 357325568 | 0 |
| 21.76.91.1 | 357325569 | 0 |
| 21.76.91.2 | 357325570 | 0 |
| 21.76.91.3 | 357325571 | 0 |
| 21.76.91.4 | 357325572 | 0 |
| 21.76.91.5 | 357325573 | 0 |
| 21.76.91.6 | 357325574 | 0 |
| 21.76.91.7 | 357325575 | 0 |
| 21.76.91.8 | 357325576 | 0 |
| 21.76.91.9 | 357325577 | 0 |
| 21.76.91.10 | 357325578 | 0 |
| 21.76.91.11 | 357325579 | 0 |
| 21.76.91.12 | 357325580 | 0 |
| 21.76.91.13 | 357325581 | 0 |
| 21.76.91.14 | 357325582 | 0 |
| 21.76.91.15 | 357325583 | 0 |
| 21.76.91.16 | 357325584 | 0 |
| 21.76.91.17 | 357325585 | 0 |
| 21.76.91.18 | 357325586 | 0 |
| 21.76.91.19 | 357325587 | 0 |
| 21.76.91.20 | 357325588 | 0 |
| 21.76.91.21 | 357325589 | 0 |
| 21.76.91.22 | 357325590 | 0 |
| 21.76.91.23 | 357325591 | 0 |
| 21.76.91.24 | 357325592 | 0 |
| 21.76.91.25 | 357325593 | 0 |
| 21.76.91.26 | 357325594 | 0 |
| 21.76.91.27 | 357325595 | 0 |
| 21.76.91.28 | 357325596 | 0 |
| 21.76.91.29 | 357325597 | 0 |
| 21.76.91.30 | 357325598 | 0 |
| 21.76.91.31 | 357325599 | 0 |
| 21.76.91.32 | 357325600 | 0 |
| 21.76.91.33 | 357325601 | 0 |
| 21.76.91.34 | 357325602 | 0 |
| 21.76.91.35 | 357325603 | 0 |
| 21.76.91.36 | 357325604 | 0 |
| 21.76.91.37 | 357325605 | 0 |
| 21.76.91.38 | 357325606 | 0 |
| 21.76.91.39 | 357325607 | 0 |
| 21.76.91.40 | 357325608 | 0 |
| 21.76.91.41 | 357325609 | 0 |
| 21.76.91.42 | 357325610 | 0 |
| 21.76.91.43 | 357325611 | 0 |
| 21.76.91.44 | 357325612 | 0 |
| 21.76.91.45 | 357325613 | 0 |
| 21.76.91.46 | 357325614 | 0 |
| 21.76.91.47 | 357325615 | 0 |
| 21.76.91.48 | 357325616 | 0 |
| 21.76.91.49 | 357325617 | 0 |
| 21.76.91.50 | 357325618 | 0 |
| 21.76.91.51 | 357325619 | 0 |
| 21.76.91.52 | 357325620 | 0 |
| 21.76.91.53 | 357325621 | 0 |
| 21.76.91.54 | 357325622 | 0 |
| 21.76.91.55 | 357325623 | 0 |
| 21.76.91.56 | 357325624 | 0 |
| 21.76.91.57 | 357325625 | 0 |
| 21.76.91.58 | 357325626 | 0 |
| 21.76.91.59 | 357325627 | 0 |
| 21.76.91.60 | 357325628 | 0 |
| 21.76.91.61 | 357325629 | 0 |
| 21.76.91.62 | 357325630 | 0 |
| 21.76.91.63 | 357325631 | 0 |
| 21.76.91.64 | 357325632 | 0 |
| 21.76.91.65 | 357325633 | 0 |
| 21.76.91.66 | 357325634 | 0 |
| 21.76.91.67 | 357325635 | 0 |
| 21.76.91.68 | 357325636 | 0 |
| 21.76.91.69 | 357325637 | 0 |
| 21.76.91.70 | 357325638 | 0 |
| 21.76.91.71 | 357325639 | 0 |
| 21.76.91.72 | 357325640 | 0 |
| 21.76.91.73 | 357325641 | 0 |
| 21.76.91.74 | 357325642 | 0 |
| 21.76.91.75 | 357325643 | 0 |
| 21.76.91.76 | 357325644 | 0 |
| 21.76.91.77 | 357325645 | 0 |
| 21.76.91.78 | 357325646 | 0 |
| 21.76.91.79 | 357325647 | 0 |
| 21.76.91.80 | 357325648 | 0 |
| 21.76.91.81 | 357325649 | 0 |
| 21.76.91.82 | 357325650 | 0 |
| 21.76.91.83 | 357325651 | 0 |
| 21.76.91.84 | 357325652 | 0 |
| 21.76.91.85 | 357325653 | 0 |