La dirección IP 128.231.2 es proporcionada por National Institutes of Health, que es propiedad de la CIDR (Classless Inter-Domain Routing) 128.231.0.0/16, IP entre 128.231.0.0 a 128.231.255.255 ). El número de sistema autónomo (ASN) es 3527.
| ASN | 3527 |
| IP que comienzan con | 128.231.0.0 |
| IP que termina con | 128.231.255.255 |
| ASN Nombre | National Institutes of Health |
| CDIR | 128.231.0.0/16 |
| IP numérica | |
| Registe | arin |
| Última actualización | 15/02/2018 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | US | Estados Unidos | - | Bethesda | 38,9996 | -77,1551 | 2018-02-15 |
| MaxMind | US | Estados Unidos | - | Bethesda | 39,0032 | -77,1602 | 2018-02-15 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 128.231.2.0 | 2162622976 | 0 |
| 128.231.2.1 | 2162622977 | 0 |
| 128.231.2.2 | 2162622978 | 0 |
| 128.231.2.3 | 2162622979 | 0 |
| 128.231.2.4 | 2162622980 | 0 |
| 128.231.2.5 | 2162622981 | 0 |
| 128.231.2.6 | 2162622982 | 0 |
| 128.231.2.7 | 2162622983 | 0 |
| 128.231.2.8 | 2162622984 | 0 |
| 128.231.2.9 | 2162622985 | 0 |
| 128.231.2.10 | 2162622986 | 0 |
| 128.231.2.11 | 2162622987 | 0 |
| 128.231.2.12 | 2162622988 | 0 |
| 128.231.2.13 | 2162622989 | 0 |
| 128.231.2.14 | 2162622990 | 0 |
| 128.231.2.15 | 2162622991 | 0 |
| 128.231.2.16 | 2162622992 | 0 |
| 128.231.2.17 | 2162622993 | 0 |
| 128.231.2.18 | 2162622994 | 0 |
| 128.231.2.19 | 2162622995 | 0 |
| 128.231.2.20 | 2162622996 | 0 |
| 128.231.2.21 | 2162622997 | 0 |
| 128.231.2.22 | 2162622998 | 0 |
| 128.231.2.23 | 2162622999 | 0 |
| 128.231.2.24 | 2162623000 | 0 |
| 128.231.2.25 | 2162623001 | 0 |
| 128.231.2.26 | 2162623002 | 0 |
| 128.231.2.27 | 2162623003 | 0 |
| 128.231.2.28 | 2162623004 | 0 |
| 128.231.2.29 | 2162623005 | 0 |
| 128.231.2.30 | 2162623006 | 0 |
| 128.231.2.31 | 2162623007 | 0 |
| 128.231.2.32 | 2162623008 | 0 |
| 128.231.2.33 | 2162623009 | 0 |
| 128.231.2.34 | 2162623010 | 0 |
| 128.231.2.35 | 2162623011 | 0 |
| 128.231.2.36 | 2162623012 | 0 |
| 128.231.2.37 | 2162623013 | 0 |
| 128.231.2.38 | 2162623014 | 0 |
| 128.231.2.39 | 2162623015 | 0 |
| 128.231.2.40 | 2162623016 | 0 |
| 128.231.2.41 | 2162623017 | 0 |
| 128.231.2.42 | 2162623018 | 0 |
| 128.231.2.43 | 2162623019 | 0 |
| 128.231.2.44 | 2162623020 | 0 |
| 128.231.2.45 | 2162623021 | 0 |
| 128.231.2.46 | 2162623022 | 0 |
| 128.231.2.47 | 2162623023 | 0 |
| 128.231.2.48 | 2162623024 | 0 |
| 128.231.2.49 | 2162623025 | 0 |
| 128.231.2.50 | 2162623026 | 0 |
| 128.231.2.51 | 2162623027 | 0 |
| 128.231.2.52 | 2162623028 | 0 |
| 128.231.2.53 | 2162623029 | 0 |
| 128.231.2.54 | 2162623030 | 0 |
| 128.231.2.55 | 2162623031 | 0 |
| 128.231.2.56 | 2162623032 | 0 |
| 128.231.2.57 | 2162623033 | 0 |
| 128.231.2.58 | 2162623034 | 0 |
| 128.231.2.59 | 2162623035 | 0 |
| 128.231.2.60 | 2162623036 | 0 |
| 128.231.2.61 | 2162623037 | 0 |
| 128.231.2.62 | 2162623038 | 0 |
| 128.231.2.63 | 2162623039 | 0 |
| 128.231.2.64 | 2162623040 | 0 |
| 128.231.2.65 | 2162623041 | 0 |
| 128.231.2.66 | 2162623042 | 0 |
| 128.231.2.67 | 2162623043 | 0 |
| 128.231.2.68 | 2162623044 | 0 |
| 128.231.2.69 | 2162623045 | 0 |
| 128.231.2.70 | 2162623046 | 0 |
| 128.231.2.71 | 2162623047 | 0 |
| 128.231.2.72 | 2162623048 | 0 |
| 128.231.2.73 | 2162623049 | 0 |
| 128.231.2.74 | 2162623050 | 0 |
| 128.231.2.75 | 2162623051 | 0 |
| 128.231.2.76 | 2162623052 | 0 |
| 128.231.2.77 | 2162623053 | 0 |
| 128.231.2.78 | 2162623054 | 0 |
| 128.231.2.79 | 2162623055 | 0 |
| 128.231.2.80 | 2162623056 | 0 |
| 128.231.2.81 | 2162623057 | 0 |
| 128.231.2.82 | 2162623058 | 0 |
| 128.231.2.83 | 2162623059 | 0 |
| 128.231.2.84 | 2162623060 | 0 |
| 128.231.2.85 | 2162623061 | 0 |