The IP address 205.61.21 is provided by DoD Network Information Center, it's belong to the CDIR (Classless Inter-Domain Routing) 205.56.0.0/13 (range 205.56.0.0 to 205.63.255.255). The autonomous system number (ASN) is 721.
| ASN | 721 |
| IP starting by | 205.56.0.0 |
| IP ending by | 205.63.255.255 |
| ASN Name | DoD Network Information Center |
| CDIR | 205.56.0.0/13 |
| Numerical IP | |
| Registry | |
| Last update | 11/12/2018 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Salt Lake City | 40.7636 | -111.8418 | 2018-12-11 |
| MaxMind | US | United States | - | Virginia Beach | 36.9205 | -76.0192 | 2018-12-11 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 205.61.21.0 | 3443332352 | 0 |
| 205.61.21.1 | 3443332353 | 0 |
| 205.61.21.2 | 3443332354 | 0 |
| 205.61.21.3 | 3443332355 | 0 |
| 205.61.21.4 | 3443332356 | 0 |
| 205.61.21.5 | 3443332357 | 0 |
| 205.61.21.6 | 3443332358 | 0 |
| 205.61.21.7 | 3443332359 | 0 |
| 205.61.21.8 | 3443332360 | 0 |
| 205.61.21.9 | 3443332361 | 0 |
| 205.61.21.10 | 3443332362 | 0 |
| 205.61.21.11 | 3443332363 | 0 |
| 205.61.21.12 | 3443332364 | 0 |
| 205.61.21.13 | 3443332365 | 0 |
| 205.61.21.14 | 3443332366 | 0 |
| 205.61.21.15 | 3443332367 | 0 |
| 205.61.21.16 | 3443332368 | 0 |
| 205.61.21.17 | 3443332369 | 0 |
| 205.61.21.18 | 3443332370 | 0 |
| 205.61.21.19 | 3443332371 | 0 |
| 205.61.21.20 | 3443332372 | 0 |
| 205.61.21.21 | 3443332373 | 0 |
| 205.61.21.22 | 3443332374 | 0 |
| 205.61.21.23 | 3443332375 | 0 |
| 205.61.21.24 | 3443332376 | 0 |
| 205.61.21.25 | 3443332377 | 0 |
| 205.61.21.26 | 3443332378 | 0 |
| 205.61.21.27 | 3443332379 | 0 |
| 205.61.21.28 | 3443332380 | 0 |
| 205.61.21.29 | 3443332381 | 0 |
| 205.61.21.30 | 3443332382 | 0 |
| 205.61.21.31 | 3443332383 | 0 |
| 205.61.21.32 | 3443332384 | 0 |
| 205.61.21.33 | 3443332385 | 0 |
| 205.61.21.34 | 3443332386 | 0 |
| 205.61.21.35 | 3443332387 | 0 |
| 205.61.21.36 | 3443332388 | 0 |
| 205.61.21.37 | 3443332389 | 0 |
| 205.61.21.38 | 3443332390 | 0 |
| 205.61.21.39 | 3443332391 | 0 |
| 205.61.21.40 | 3443332392 | 0 |
| 205.61.21.41 | 3443332393 | 0 |
| 205.61.21.42 | 3443332394 | 0 |
| 205.61.21.43 | 3443332395 | 0 |
| 205.61.21.44 | 3443332396 | 0 |
| 205.61.21.45 | 3443332397 | 0 |
| 205.61.21.46 | 3443332398 | 0 |
| 205.61.21.47 | 3443332399 | 0 |
| 205.61.21.48 | 3443332400 | 0 |
| 205.61.21.49 | 3443332401 | 0 |
| 205.61.21.50 | 3443332402 | 0 |
| 205.61.21.51 | 3443332403 | 0 |
| 205.61.21.52 | 3443332404 | 0 |
| 205.61.21.53 | 3443332405 | 0 |
| 205.61.21.54 | 3443332406 | 0 |
| 205.61.21.55 | 3443332407 | 0 |
| 205.61.21.56 | 3443332408 | 0 |
| 205.61.21.57 | 3443332409 | 0 |
| 205.61.21.58 | 3443332410 | 0 |
| 205.61.21.59 | 3443332411 | 0 |
| 205.61.21.60 | 3443332412 | 0 |
| 205.61.21.61 | 3443332413 | 0 |
| 205.61.21.62 | 3443332414 | 0 |
| 205.61.21.63 | 3443332415 | 0 |
| 205.61.21.64 | 3443332416 | 0 |
| 205.61.21.65 | 3443332417 | 0 |
| 205.61.21.66 | 3443332418 | 0 |
| 205.61.21.67 | 3443332419 | 0 |
| 205.61.21.68 | 3443332420 | 0 |
| 205.61.21.69 | 3443332421 | 0 |
| 205.61.21.70 | 3443332422 | 0 |
| 205.61.21.71 | 3443332423 | 0 |
| 205.61.21.72 | 3443332424 | 0 |
| 205.61.21.73 | 3443332425 | 0 |
| 205.61.21.74 | 3443332426 | 0 |
| 205.61.21.75 | 3443332427 | 0 |
| 205.61.21.76 | 3443332428 | 0 |
| 205.61.21.77 | 3443332429 | 0 |
| 205.61.21.78 | 3443332430 | 0 |
| 205.61.21.79 | 3443332431 | 0 |
| 205.61.21.80 | 3443332432 | 0 |
| 205.61.21.81 | 3443332433 | 0 |
| 205.61.21.82 | 3443332434 | 0 |
| 205.61.21.83 | 3443332435 | 0 |
| 205.61.21.84 | 3443332436 | 0 |
| 205.61.21.85 | 3443332437 | 0 |