La dirección IP 12.91.81 es proporcionada por AT&T Services, Inc., que es propiedad de la CIDR (Classless Inter-Domain Routing) 12.0.0.0/8, IP entre 12.0.0.0 a 12.255.255.255 ). El número de sistema autónomo (ASN) es 7018.
| ASN | 7018 |
| IP que comienzan con | 12.0.0.0 |
| IP que termina con | 12.255.255.255 |
| ASN Nombre | AT&T Services, Inc. |
| CDIR | 12.0.0.0/8 |
| IP numérica | |
| Registe | |
| Última actualización | 27/10/2017 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | US | Estados Unidos | - | Morristown | 40,8077 | -74,4988 | 2017-10-26 |
| MaxMind | US | Estados Unidos | - | - | 37,751 | -97,822 | 2017-10-26 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 12.91.81.0 | 207311104 | 0 |
| 12.91.81.1 | 207311105 | 0 |
| 12.91.81.2 | 207311106 | 0 |
| 12.91.81.3 | 207311107 | 0 |
| 12.91.81.4 | 207311108 | 0 |
| 12.91.81.5 | 207311109 | 0 |
| 12.91.81.6 | 207311110 | 0 |
| 12.91.81.7 | 207311111 | 0 |
| 12.91.81.8 | 207311112 | 0 |
| 12.91.81.9 | 207311113 | 0 |
| 12.91.81.10 | 207311114 | 0 |
| 12.91.81.11 | 207311115 | 0 |
| 12.91.81.12 | 207311116 | 0 |
| 12.91.81.13 | 207311117 | 0 |
| 12.91.81.14 | 207311118 | 0 |
| 12.91.81.15 | 207311119 | 0 |
| 12.91.81.16 | 207311120 | 0 |
| 12.91.81.17 | 207311121 | 0 |
| 12.91.81.18 | 207311122 | 0 |
| 12.91.81.19 | 207311123 | 0 |
| 12.91.81.20 | 207311124 | 0 |
| 12.91.81.21 | 207311125 | 0 |
| 12.91.81.22 | 207311126 | 0 |
| 12.91.81.23 | 207311127 | 0 |
| 12.91.81.24 | 207311128 | 0 |
| 12.91.81.25 | 207311129 | 0 |
| 12.91.81.26 | 207311130 | 0 |
| 12.91.81.27 | 207311131 | 0 |
| 12.91.81.28 | 207311132 | 0 |
| 12.91.81.29 | 207311133 | 0 |
| 12.91.81.30 | 207311134 | 0 |
| 12.91.81.31 | 207311135 | 0 |
| 12.91.81.32 | 207311136 | 0 |
| 12.91.81.33 | 207311137 | 0 |
| 12.91.81.34 | 207311138 | 0 |
| 12.91.81.35 | 207311139 | 0 |
| 12.91.81.36 | 207311140 | 0 |
| 12.91.81.37 | 207311141 | 0 |
| 12.91.81.38 | 207311142 | 0 |
| 12.91.81.39 | 207311143 | 0 |
| 12.91.81.40 | 207311144 | 0 |
| 12.91.81.41 | 207311145 | 0 |
| 12.91.81.42 | 207311146 | 0 |
| 12.91.81.43 | 207311147 | 0 |
| 12.91.81.44 | 207311148 | 0 |
| 12.91.81.45 | 207311149 | 0 |
| 12.91.81.46 | 207311150 | 0 |
| 12.91.81.47 | 207311151 | 0 |
| 12.91.81.48 | 207311152 | 0 |
| 12.91.81.49 | 207311153 | 0 |
| 12.91.81.50 | 207311154 | 0 |
| 12.91.81.51 | 207311155 | 0 |
| 12.91.81.52 | 207311156 | 0 |
| 12.91.81.53 | 207311157 | 0 |
| 12.91.81.54 | 207311158 | 0 |
| 12.91.81.55 | 207311159 | 0 |
| 12.91.81.56 | 207311160 | 0 |
| 12.91.81.57 | 207311161 | 0 |
| 12.91.81.58 | 207311162 | 0 |
| 12.91.81.59 | 207311163 | 0 |
| 12.91.81.60 | 207311164 | 0 |
| 12.91.81.61 | 207311165 | 0 |
| 12.91.81.62 | 207311166 | 0 |
| 12.91.81.63 | 207311167 | 0 |
| 12.91.81.64 | 207311168 | 0 |
| 12.91.81.65 | 207311169 | 0 |
| 12.91.81.66 | 207311170 | 0 |
| 12.91.81.67 | 207311171 | 0 |
| 12.91.81.68 | 207311172 | 0 |
| 12.91.81.69 | 207311173 | 0 |
| 12.91.81.70 | 207311174 | 0 |
| 12.91.81.71 | 207311175 | 0 |
| 12.91.81.72 | 207311176 | 0 |
| 12.91.81.73 | 207311177 | 0 |
| 12.91.81.74 | 207311178 | 0 |
| 12.91.81.75 | 207311179 | 0 |
| 12.91.81.76 | 207311180 | 0 |
| 12.91.81.77 | 207311181 | 0 |
| 12.91.81.78 | 207311182 | 0 |
| 12.91.81.79 | 207311183 | 0 |
| 12.91.81.80 | 207311184 | 0 |
| 12.91.81.81 | 207311185 | 0 |
| 12.91.81.82 | 207311186 | 0 |
| 12.91.81.83 | 207311187 | 0 |
| 12.91.81.84 | 207311188 | 0 |
| 12.91.81.85 | 207311189 | 0 |