Les adresses IP débutant par 128.91.47 sont fournies par University of Pennsylvania, elles appartiennent au CIDR (Classless Inter-Domain Routing) 128.91.0.0/16, le bloc IP comprant les adresses de 128.91.0.0 à 128.91.255.255). Le numéro de système autonome (ASN) est 55.
| ASN | 55 |
| IP commençant par | 128.91.0.0 |
| IP se terminant par | 128.91.255.255 |
| Nom ASN | University of Pennsylvania |
| CDIR | 128.91.0.0/16 |
| IP numérique | |
| Registe | arin |
| Dernière mise à jour | 14/11/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | US | États-Unis | - | Philadelphia | 39,961 | -75,1998 | 2017-11-14 |
| MaxMind | US | États-Unis | - | Philadelphia | 39,9597 | -75,1968 | 2017-11-14 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 128.91.47.0 | 2153459456 | 0 |
| 128.91.47.1 | 2153459457 | 0 |
| 128.91.47.2 | 2153459458 | 0 |
| 128.91.47.3 | 2153459459 | 0 |
| 128.91.47.4 | 2153459460 | 0 |
| 128.91.47.5 | 2153459461 | 0 |
| 128.91.47.6 | 2153459462 | 0 |
| 128.91.47.7 | 2153459463 | 0 |
| 128.91.47.8 | 2153459464 | 0 |
| 128.91.47.9 | 2153459465 | 0 |
| 128.91.47.10 | 2153459466 | 0 |
| 128.91.47.11 | 2153459467 | 0 |
| 128.91.47.12 | 2153459468 | 0 |
| 128.91.47.13 | 2153459469 | 0 |
| 128.91.47.14 | 2153459470 | 0 |
| 128.91.47.15 | 2153459471 | 0 |
| 128.91.47.16 | 2153459472 | 0 |
| 128.91.47.17 | 2153459473 | 0 |
| 128.91.47.18 | 2153459474 | 0 |
| 128.91.47.19 | 2153459475 | 0 |
| 128.91.47.20 | 2153459476 | 0 |
| 128.91.47.21 | 2153459477 | 0 |
| 128.91.47.22 | 2153459478 | 0 |
| 128.91.47.23 | 2153459479 | 0 |
| 128.91.47.24 | 2153459480 | 0 |
| 128.91.47.25 | 2153459481 | 0 |
| 128.91.47.26 | 2153459482 | 0 |
| 128.91.47.27 | 2153459483 | 0 |
| 128.91.47.28 | 2153459484 | 0 |
| 128.91.47.29 | 2153459485 | 0 |
| 128.91.47.30 | 2153459486 | 0 |
| 128.91.47.31 | 2153459487 | 0 |
| 128.91.47.32 | 2153459488 | 0 |
| 128.91.47.33 | 2153459489 | 0 |
| 128.91.47.34 | 2153459490 | 0 |
| 128.91.47.35 | 2153459491 | 0 |
| 128.91.47.36 | 2153459492 | 0 |
| 128.91.47.37 | 2153459493 | 0 |
| 128.91.47.38 | 2153459494 | 0 |
| 128.91.47.39 | 2153459495 | 0 |
| 128.91.47.40 | 2153459496 | 0 |
| 128.91.47.41 | 2153459497 | 0 |
| 128.91.47.42 | 2153459498 | 0 |
| 128.91.47.43 | 2153459499 | 0 |
| 128.91.47.44 | 2153459500 | 0 |
| 128.91.47.45 | 2153459501 | 0 |
| 128.91.47.46 | 2153459502 | 0 |
| 128.91.47.47 | 2153459503 | 0 |
| 128.91.47.48 | 2153459504 | 0 |
| 128.91.47.49 | 2153459505 | 0 |
| 128.91.47.50 | 2153459506 | 0 |
| 128.91.47.51 | 2153459507 | 0 |
| 128.91.47.52 | 2153459508 | 0 |
| 128.91.47.53 | 2153459509 | 0 |
| 128.91.47.54 | 2153459510 | 0 |
| 128.91.47.55 | 2153459511 | 0 |
| 128.91.47.56 | 2153459512 | 0 |
| 128.91.47.57 | 2153459513 | 0 |
| 128.91.47.58 | 2153459514 | 0 |
| 128.91.47.59 | 2153459515 | 0 |
| 128.91.47.60 | 2153459516 | 0 |
| 128.91.47.61 | 2153459517 | 0 |
| 128.91.47.62 | 2153459518 | 0 |
| 128.91.47.63 | 2153459519 | 0 |
| 128.91.47.64 | 2153459520 | 0 |
| 128.91.47.65 | 2153459521 | 0 |
| 128.91.47.66 | 2153459522 | 0 |
| 128.91.47.67 | 2153459523 | 0 |
| 128.91.47.68 | 2153459524 | 0 |
| 128.91.47.69 | 2153459525 | 0 |
| 128.91.47.70 | 2153459526 | 0 |
| 128.91.47.71 | 2153459527 | 0 |
| 128.91.47.72 | 2153459528 | 0 |
| 128.91.47.73 | 2153459529 | 0 |
| 128.91.47.74 | 2153459530 | 0 |
| 128.91.47.75 | 2153459531 | 0 |
| 128.91.47.76 | 2153459532 | 0 |
| 128.91.47.77 | 2153459533 | 0 |
| 128.91.47.78 | 2153459534 | 0 |
| 128.91.47.79 | 2153459535 | 0 |
| 128.91.47.80 | 2153459536 | 0 |
| 128.91.47.81 | 2153459537 | 0 |
| 128.91.47.82 | 2153459538 | 0 |
| 128.91.47.83 | 2153459539 | 0 |
| 128.91.47.84 | 2153459540 | 0 |
| 128.91.47.85 | 2153459541 | 0 |