L'indirizzo IP 4.91.81 è fornito da Level 3 Communications, Inc., che è di proprietà del CIDR (Classless Inter-Domain Routing) 4.0.0.0/8, IP tra 4.0.0.0 a 4.255.255.255 ). Il numero di sistema autonomo (ASN) è 3356.
| ASN | 3356 |
| IP inizia con | 4.0.0.0 |
| IP finale con | 4.255.255.255 |
| ASN Nome | Level 3 Communications, Inc. |
| CDIR | 4.0.0.0/8 |
| IP numerico | |
| Registe | |
| Ultimo aggiornamento | 08/07/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | US | United States | - | Los Angeles | 34,0522 | -118,2437 | 2017-07-08 |
| MaxMind | US | United States | - | - | 37,751 | -97,822 | 2017-07-08 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 4.91.81.0 | 73093376 | 0 |
| 4.91.81.1 | 73093377 | 0 |
| 4.91.81.2 | 73093378 | 0 |
| 4.91.81.3 | 73093379 | 0 |
| 4.91.81.4 | 73093380 | 0 |
| 4.91.81.5 | 73093381 | 0 |
| 4.91.81.6 | 73093382 | 0 |
| 4.91.81.7 | 73093383 | 0 |
| 4.91.81.8 | 73093384 | 0 |
| 4.91.81.9 | 73093385 | 0 |
| 4.91.81.10 | 73093386 | 0 |
| 4.91.81.11 | 73093387 | 0 |
| 4.91.81.12 | 73093388 | 0 |
| 4.91.81.13 | 73093389 | 0 |
| 4.91.81.14 | 73093390 | 0 |
| 4.91.81.15 | 73093391 | 0 |
| 4.91.81.16 | 73093392 | 0 |
| 4.91.81.17 | 73093393 | 0 |
| 4.91.81.18 | 73093394 | 0 |
| 4.91.81.19 | 73093395 | 0 |
| 4.91.81.20 | 73093396 | 0 |
| 4.91.81.21 | 73093397 | 0 |
| 4.91.81.22 | 73093398 | 0 |
| 4.91.81.23 | 73093399 | 0 |
| 4.91.81.24 | 73093400 | 0 |
| 4.91.81.25 | 73093401 | 0 |
| 4.91.81.26 | 73093402 | 0 |
| 4.91.81.27 | 73093403 | 0 |
| 4.91.81.28 | 73093404 | 0 |
| 4.91.81.29 | 73093405 | 0 |
| 4.91.81.30 | 73093406 | 0 |
| 4.91.81.31 | 73093407 | 0 |
| 4.91.81.32 | 73093408 | 0 |
| 4.91.81.33 | 73093409 | 0 |
| 4.91.81.34 | 73093410 | 0 |
| 4.91.81.35 | 73093411 | 0 |
| 4.91.81.36 | 73093412 | 0 |
| 4.91.81.37 | 73093413 | 0 |
| 4.91.81.38 | 73093414 | 0 |
| 4.91.81.39 | 73093415 | 0 |
| 4.91.81.40 | 73093416 | 0 |
| 4.91.81.41 | 73093417 | 0 |
| 4.91.81.42 | 73093418 | 0 |
| 4.91.81.43 | 73093419 | 0 |
| 4.91.81.44 | 73093420 | 0 |
| 4.91.81.45 | 73093421 | 0 |
| 4.91.81.46 | 73093422 | 0 |
| 4.91.81.47 | 73093423 | 0 |
| 4.91.81.48 | 73093424 | 0 |
| 4.91.81.49 | 73093425 | 0 |
| 4.91.81.50 | 73093426 | 0 |
| 4.91.81.51 | 73093427 | 0 |
| 4.91.81.52 | 73093428 | 0 |
| 4.91.81.53 | 73093429 | 0 |
| 4.91.81.54 | 73093430 | 0 |
| 4.91.81.55 | 73093431 | 0 |
| 4.91.81.56 | 73093432 | 0 |
| 4.91.81.57 | 73093433 | 0 |
| 4.91.81.58 | 73093434 | 0 |
| 4.91.81.59 | 73093435 | 0 |
| 4.91.81.60 | 73093436 | 0 |
| 4.91.81.61 | 73093437 | 0 |
| 4.91.81.62 | 73093438 | 0 |
| 4.91.81.63 | 73093439 | 0 |
| 4.91.81.64 | 73093440 | 0 |
| 4.91.81.65 | 73093441 | 0 |
| 4.91.81.66 | 73093442 | 0 |
| 4.91.81.67 | 73093443 | 0 |
| 4.91.81.68 | 73093444 | 0 |
| 4.91.81.69 | 73093445 | 0 |
| 4.91.81.70 | 73093446 | 0 |
| 4.91.81.71 | 73093447 | 0 |
| 4.91.81.72 | 73093448 | 0 |
| 4.91.81.73 | 73093449 | 0 |
| 4.91.81.74 | 73093450 | 0 |
| 4.91.81.75 | 73093451 | 0 |
| 4.91.81.76 | 73093452 | 0 |
| 4.91.81.77 | 73093453 | 0 |
| 4.91.81.78 | 73093454 | 0 |
| 4.91.81.79 | 73093455 | 0 |
| 4.91.81.80 | 73093456 | 0 |
| 4.91.81.81 | 73093457 | 0 |
| 4.91.81.82 | 73093458 | 0 |
| 4.91.81.83 | 73093459 | 0 |
| 4.91.81.84 | 73093460 | 0 |
| 4.91.81.85 | 73093461 | 0 |