Les adresses IP débutant par 199.74.87 sont fournies par Northwestern University, elles appartiennent au CIDR (Classless Inter-Domain Routing) 199.74.64.0/18, le bloc IP comprant les adresses de 199.74.64.0 à 199.74.127.255). Le numéro de système autonome (ASN) est 103.
| ASN | 103 |
| IP commençant par | 199.74.64.0 |
| IP se terminant par | 199.74.127.255 |
| Nom ASN | Northwestern University |
| CDIR | 199.74.64.0/18 |
| IP numérique | |
| Registe | arin |
| Dernière mise à jour | 04/07/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | US | États-Unis | - | Chicago | 41,85 | -87,6501 | 2017-07-04 |
| MaxMind | US | États-Unis | - | Evanston | 42,0586 | -87,6845 | 2017-07-04 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 199.74.87.0 | 3343537920 | 0 |
| 199.74.87.1 | 3343537921 | 0 |
| 199.74.87.2 | 3343537922 | 0 |
| 199.74.87.3 | 3343537923 | 0 |
| 199.74.87.4 | 3343537924 | 0 |
| 199.74.87.5 | 3343537925 | 0 |
| 199.74.87.6 | 3343537926 | 0 |
| 199.74.87.7 | 3343537927 | 0 |
| 199.74.87.8 | 3343537928 | 0 |
| 199.74.87.9 | 3343537929 | 0 |
| 199.74.87.10 | 3343537930 | 0 |
| 199.74.87.11 | 3343537931 | 0 |
| 199.74.87.12 | 3343537932 | 0 |
| 199.74.87.13 | 3343537933 | 0 |
| 199.74.87.14 | 3343537934 | 0 |
| 199.74.87.15 | 3343537935 | 0 |
| 199.74.87.16 | 3343537936 | 0 |
| 199.74.87.17 | 3343537937 | 0 |
| 199.74.87.18 | 3343537938 | 0 |
| 199.74.87.19 | 3343537939 | 0 |
| 199.74.87.20 | 3343537940 | 0 |
| 199.74.87.21 | 3343537941 | 0 |
| 199.74.87.22 | 3343537942 | 0 |
| 199.74.87.23 | 3343537943 | 0 |
| 199.74.87.24 | 3343537944 | 0 |
| 199.74.87.25 | 3343537945 | 0 |
| 199.74.87.26 | 3343537946 | 0 |
| 199.74.87.27 | 3343537947 | 0 |
| 199.74.87.28 | 3343537948 | 0 |
| 199.74.87.29 | 3343537949 | 0 |
| 199.74.87.30 | 3343537950 | 0 |
| 199.74.87.31 | 3343537951 | 0 |
| 199.74.87.32 | 3343537952 | 0 |
| 199.74.87.33 | 3343537953 | 0 |
| 199.74.87.34 | 3343537954 | 0 |
| 199.74.87.35 | 3343537955 | 0 |
| 199.74.87.36 | 3343537956 | 0 |
| 199.74.87.37 | 3343537957 | 0 |
| 199.74.87.38 | 3343537958 | 0 |
| 199.74.87.39 | 3343537959 | 0 |
| 199.74.87.40 | 3343537960 | 0 |
| 199.74.87.41 | 3343537961 | 0 |
| 199.74.87.42 | 3343537962 | 0 |
| 199.74.87.43 | 3343537963 | 0 |
| 199.74.87.44 | 3343537964 | 0 |
| 199.74.87.45 | 3343537965 | 0 |
| 199.74.87.46 | 3343537966 | 0 |
| 199.74.87.47 | 3343537967 | 0 |
| 199.74.87.48 | 3343537968 | 0 |
| 199.74.87.49 | 3343537969 | 0 |
| 199.74.87.50 | 3343537970 | 0 |
| 199.74.87.51 | 3343537971 | 0 |
| 199.74.87.52 | 3343537972 | 0 |
| 199.74.87.53 | 3343537973 | 0 |
| 199.74.87.54 | 3343537974 | 0 |
| 199.74.87.55 | 3343537975 | 0 |
| 199.74.87.56 | 3343537976 | 0 |
| 199.74.87.57 | 3343537977 | 0 |
| 199.74.87.58 | 3343537978 | 0 |
| 199.74.87.59 | 3343537979 | 0 |
| 199.74.87.60 | 3343537980 | 0 |
| 199.74.87.61 | 3343537981 | 0 |
| 199.74.87.62 | 3343537982 | 0 |
| 199.74.87.63 | 3343537983 | 0 |
| 199.74.87.64 | 3343537984 | 0 |
| 199.74.87.65 | 3343537985 | 0 |
| 199.74.87.66 | 3343537986 | 0 |
| 199.74.87.67 | 3343537987 | 0 |
| 199.74.87.68 | 3343537988 | 0 |
| 199.74.87.69 | 3343537989 | 0 |
| 199.74.87.70 | 3343537990 | 0 |
| 199.74.87.71 | 3343537991 | 0 |
| 199.74.87.72 | 3343537992 | 0 |
| 199.74.87.73 | 3343537993 | 0 |
| 199.74.87.74 | 3343537994 | 0 |
| 199.74.87.75 | 3343537995 | 0 |
| 199.74.87.76 | 3343537996 | 0 |
| 199.74.87.77 | 3343537997 | 0 |
| 199.74.87.78 | 3343537998 | 0 |
| 199.74.87.79 | 3343537999 | 0 |
| 199.74.87.80 | 3343538000 | 0 |
| 199.74.87.81 | 3343538001 | 0 |
| 199.74.87.82 | 3343538002 | 0 |
| 199.74.87.83 | 3343538003 | 0 |
| 199.74.87.84 | 3343538004 | 0 |
| 199.74.87.85 | 3343538005 | 0 |