Die IP-Adresse 21.7.172 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 | 30.12.2017 |

| Vorwahl des Landes | Land | Region | Stadt | Breitengrad | Länge | Letztes update | |
| IP2Location | US | USA | - | Columbus | 39,9664 | -83,0128 | 2017-12-29 |
| MaxMind | US | USA | - | - | 37,751 | -97,822 | 2017-12-29 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.7.172.0 | 352824320 | 0 |
| 21.7.172.1 | 352824321 | 0 |
| 21.7.172.2 | 352824322 | 0 |
| 21.7.172.3 | 352824323 | 0 |
| 21.7.172.4 | 352824324 | 0 |
| 21.7.172.5 | 352824325 | 0 |
| 21.7.172.6 | 352824326 | 0 |
| 21.7.172.7 | 352824327 | 0 |
| 21.7.172.8 | 352824328 | 0 |
| 21.7.172.9 | 352824329 | 0 |
| 21.7.172.10 | 352824330 | 0 |
| 21.7.172.11 | 352824331 | 0 |
| 21.7.172.12 | 352824332 | 0 |
| 21.7.172.13 | 352824333 | 0 |
| 21.7.172.14 | 352824334 | 0 |
| 21.7.172.15 | 352824335 | 0 |
| 21.7.172.16 | 352824336 | 0 |
| 21.7.172.17 | 352824337 | 0 |
| 21.7.172.18 | 352824338 | 0 |
| 21.7.172.19 | 352824339 | 0 |
| 21.7.172.20 | 352824340 | 0 |
| 21.7.172.21 | 352824341 | 0 |
| 21.7.172.22 | 352824342 | 0 |
| 21.7.172.23 | 352824343 | 0 |
| 21.7.172.24 | 352824344 | 0 |
| 21.7.172.25 | 352824345 | 0 |
| 21.7.172.26 | 352824346 | 0 |
| 21.7.172.27 | 352824347 | 0 |
| 21.7.172.28 | 352824348 | 0 |
| 21.7.172.29 | 352824349 | 0 |
| 21.7.172.30 | 352824350 | 0 |
| 21.7.172.31 | 352824351 | 0 |
| 21.7.172.32 | 352824352 | 0 |
| 21.7.172.33 | 352824353 | 0 |
| 21.7.172.34 | 352824354 | 0 |
| 21.7.172.35 | 352824355 | 0 |
| 21.7.172.36 | 352824356 | 0 |
| 21.7.172.37 | 352824357 | 0 |
| 21.7.172.38 | 352824358 | 0 |
| 21.7.172.39 | 352824359 | 0 |
| 21.7.172.40 | 352824360 | 0 |
| 21.7.172.41 | 352824361 | 0 |
| 21.7.172.42 | 352824362 | 0 |
| 21.7.172.43 | 352824363 | 0 |
| 21.7.172.44 | 352824364 | 0 |
| 21.7.172.45 | 352824365 | 0 |
| 21.7.172.46 | 352824366 | 0 |
| 21.7.172.47 | 352824367 | 0 |
| 21.7.172.48 | 352824368 | 0 |
| 21.7.172.49 | 352824369 | 0 |
| 21.7.172.50 | 352824370 | 0 |
| 21.7.172.51 | 352824371 | 0 |
| 21.7.172.52 | 352824372 | 0 |
| 21.7.172.53 | 352824373 | 0 |
| 21.7.172.54 | 352824374 | 0 |
| 21.7.172.55 | 352824375 | 0 |
| 21.7.172.56 | 352824376 | 0 |
| 21.7.172.57 | 352824377 | 0 |
| 21.7.172.58 | 352824378 | 0 |
| 21.7.172.59 | 352824379 | 0 |
| 21.7.172.60 | 352824380 | 0 |
| 21.7.172.61 | 352824381 | 0 |
| 21.7.172.62 | 352824382 | 0 |
| 21.7.172.63 | 352824383 | 0 |
| 21.7.172.64 | 352824384 | 0 |
| 21.7.172.65 | 352824385 | 0 |
| 21.7.172.66 | 352824386 | 0 |
| 21.7.172.67 | 352824387 | 0 |
| 21.7.172.68 | 352824388 | 0 |
| 21.7.172.69 | 352824389 | 0 |
| 21.7.172.70 | 352824390 | 0 |
| 21.7.172.71 | 352824391 | 0 |
| 21.7.172.72 | 352824392 | 0 |
| 21.7.172.73 | 352824393 | 0 |
| 21.7.172.74 | 352824394 | 0 |
| 21.7.172.75 | 352824395 | 0 |
| 21.7.172.76 | 352824396 | 0 |
| 21.7.172.77 | 352824397 | 0 |
| 21.7.172.78 | 352824398 | 0 |
| 21.7.172.79 | 352824399 | 0 |
| 21.7.172.80 | 352824400 | 0 |
| 21.7.172.81 | 352824401 | 0 |
| 21.7.172.82 | 352824402 | 0 |
| 21.7.172.83 | 352824403 | 0 |
| 21.7.172.84 | 352824404 | 0 |
| 21.7.172.85 | 352824405 | 0 |