Les adresses IP débutant par 81.23.255 sont fournies par Autonomous System for Netholding., elles appartiennent au CIDR (Classless Inter-Domain Routing) 81.23.224.0/19, le bloc IP comprant les adresses de 81.23.224.0 à 81.23.255.255). Le numéro de système autonome (ASN) est 24730.
| ASN | 24730 |
| IP commençant par | 81.23.224.0 |
| IP se terminant par | 81.23.255.255 |
| Nom ASN | Autonomous System for Netholding. |
| CDIR | 81.23.224.0/19 |
| IP numérique | |
| Registe | ripencc |
| Dernière mise à jour | 01/09/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | NL | Pays-Bas | - | Rijswijk | 52,0363 | 4,325 | 2017-07-03 |
| MaxMind | NL | Pays-Bas | - | - | 52,3824 | 4,8995 | 2017-07-03 |
| Whois | NL | - | - | - | 5 | 52 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 81.23.255.0 | 1360527104 | 0 |
| 81.23.255.1 | 1360527105 | 0 |
| 81.23.255.2 | 1360527106 | 0 |
| 81.23.255.3 | 1360527107 | 0 |
| 81.23.255.4 | 1360527108 | 0 |
| 81.23.255.5 | 1360527109 | 0 |
| 81.23.255.6 | 1360527110 | 0 |
| 81.23.255.7 | 1360527111 | 0 |
| 81.23.255.8 | 1360527112 | 0 |
| 81.23.255.9 | 1360527113 | 0 |
| 81.23.255.10 | 1360527114 | 0 |
| 81.23.255.11 | 1360527115 | 0 |
| 81.23.255.12 | 1360527116 | 0 |
| 81.23.255.13 | 1360527117 | 0 |
| 81.23.255.14 | 1360527118 | 0 |
| 81.23.255.15 | 1360527119 | 0 |
| 81.23.255.16 | 1360527120 | 0 |
| 81.23.255.17 | 1360527121 | 0 |
| 81.23.255.18 | 1360527122 | 0 |
| 81.23.255.19 | 1360527123 | 0 |
| 81.23.255.20 | 1360527124 | 0 |
| 81.23.255.21 | 1360527125 | 0 |
| 81.23.255.22 | 1360527126 | 0 |
| 81.23.255.23 | 1360527127 | 0 |
| 81.23.255.24 | 1360527128 | 0 |
| 81.23.255.25 | 1360527129 | 0 |
| 81.23.255.26 | 1360527130 | 0 |
| 81.23.255.27 | 1360527131 | 0 |
| 81.23.255.28 | 1360527132 | 0 |
| 81.23.255.29 | 1360527133 | 0 |
| 81.23.255.30 | 1360527134 | 0 |
| 81.23.255.31 | 1360527135 | 0 |
| 81.23.255.32 | 1360527136 | 0 |
| 81.23.255.33 | 1360527137 | 0 |
| 81.23.255.34 | 1360527138 | 0 |
| 81.23.255.35 | 1360527139 | 0 |
| 81.23.255.36 | 1360527140 | 0 |
| 81.23.255.37 | 1360527141 | 0 |
| 81.23.255.38 | 1360527142 | 0 |
| 81.23.255.39 | 1360527143 | 0 |
| 81.23.255.40 | 1360527144 | 0 |
| 81.23.255.41 | 1360527145 | 0 |
| 81.23.255.42 | 1360527146 | 0 |
| 81.23.255.43 | 1360527147 | 0 |
| 81.23.255.44 | 1360527148 | 0 |
| 81.23.255.45 | 1360527149 | 0 |
| 81.23.255.46 | 1360527150 | 0 |
| 81.23.255.47 | 1360527151 | 0 |
| 81.23.255.48 | 1360527152 | 0 |
| 81.23.255.49 | 1360527153 | 0 |
| 81.23.255.50 | 1360527154 | 0 |
| 81.23.255.51 | 1360527155 | 0 |
| 81.23.255.52 | 1360527156 | 0 |
| 81.23.255.53 | 1360527157 | 0 |
| 81.23.255.54 | 1360527158 | 0 |
| 81.23.255.55 | 1360527159 | 0 |
| 81.23.255.56 | 1360527160 | 0 |
| 81.23.255.57 | 1360527161 | 0 |
| 81.23.255.58 | 1360527162 | 0 |
| 81.23.255.59 | 1360527163 | 0 |
| 81.23.255.60 | 1360527164 | 0 |
| 81.23.255.61 | 1360527165 | 0 |
| 81.23.255.62 | 1360527166 | 0 |
| 81.23.255.63 | 1360527167 | 0 |
| 81.23.255.64 | 1360527168 | 0 |
| 81.23.255.65 | 1360527169 | 0 |
| 81.23.255.66 | 1360527170 | 0 |
| 81.23.255.67 | 1360527171 | 0 |
| 81.23.255.68 | 1360527172 | 0 |
| 81.23.255.69 | 1360527173 | 0 |
| 81.23.255.70 | 1360527174 | 0 |
| 81.23.255.71 | 1360527175 | 0 |
| 81.23.255.72 | 1360527176 | 0 |
| 81.23.255.73 | 1360527177 | 0 |
| 81.23.255.74 | 1360527178 | 0 |
| 81.23.255.75 | 1360527179 | 0 |
| 81.23.255.76 | 1360527180 | 0 |
| 81.23.255.77 | 1360527181 | 0 |
| 81.23.255.78 | 1360527182 | 0 |
| 81.23.255.79 | 1360527183 | 0 |
| 81.23.255.80 | 1360527184 | 0 |
| 81.23.255.81 | 1360527185 | 0 |
| 81.23.255.82 | 1360527186 | 0 |
| 81.23.255.83 | 1360527187 | 0 |
| 81.23.255.84 | 1360527188 | 0 |
| 81.23.255.85 | 1360527189 | 0 |