Les adresses IP débutant par 172.0.4 sont fournies par AT&T Services, Inc., elles appartiennent au CIDR (Classless Inter-Domain Routing) 172.0.0.0/12, le bloc IP comprant les adresses de 172.0.0.0 à 172.15.255.255). Le numéro de système autonome (ASN) est 7018.
| ASN | 7018 |
| IP commençant par | 172.0.0.0 |
| IP se terminant par | 172.15.255.255 |
| Nom ASN | AT&T Services, Inc. |
| CDIR | 172.0.0.0/12 |
| IP numérique | |
| Registe | arin |
| Dernière mise à jour | 29/08/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | US | États-Unis | - | Pelham | 33,2857 | -86,81 | 2017-08-29 |
| MaxMind | US | États-Unis | - | Bessemer | 33,4023 | -86,939 | 2017-08-29 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 172.0.4.0 | 2885682176 | 0 |
| 172.0.4.1 | 2885682177 | 0 |
| 172.0.4.2 | 2885682178 | 0 |
| 172.0.4.3 | 2885682179 | 0 |
| 172.0.4.4 | 2885682180 | 0 |
| 172.0.4.5 | 2885682181 | 0 |
| 172.0.4.6 | 2885682182 | 0 |
| 172.0.4.7 | 2885682183 | 0 |
| 172.0.4.8 | 2885682184 | 0 |
| 172.0.4.9 | 2885682185 | 0 |
| 172.0.4.10 | 2885682186 | 0 |
| 172.0.4.11 | 2885682187 | 0 |
| 172.0.4.12 | 2885682188 | 0 |
| 172.0.4.13 | 2885682189 | 0 |
| 172.0.4.14 | 2885682190 | 0 |
| 172.0.4.15 | 2885682191 | 0 |
| 172.0.4.16 | 2885682192 | 0 |
| 172.0.4.17 | 2885682193 | 0 |
| 172.0.4.18 | 2885682194 | 0 |
| 172.0.4.19 | 2885682195 | 0 |
| 172.0.4.20 | 2885682196 | 0 |
| 172.0.4.21 | 2885682197 | 0 |
| 172.0.4.22 | 2885682198 | 0 |
| 172.0.4.23 | 2885682199 | 0 |
| 172.0.4.24 | 2885682200 | 0 |
| 172.0.4.25 | 2885682201 | 0 |
| 172.0.4.26 | 2885682202 | 0 |
| 172.0.4.27 | 2885682203 | 0 |
| 172.0.4.28 | 2885682204 | 0 |
| 172.0.4.29 | 2885682205 | 0 |
| 172.0.4.30 | 2885682206 | 0 |
| 172.0.4.31 | 2885682207 | 0 |
| 172.0.4.32 | 2885682208 | 0 |
| 172.0.4.33 | 2885682209 | 0 |
| 172.0.4.34 | 2885682210 | 0 |
| 172.0.4.35 | 2885682211 | 0 |
| 172.0.4.36 | 2885682212 | 0 |
| 172.0.4.37 | 2885682213 | 0 |
| 172.0.4.38 | 2885682214 | 0 |
| 172.0.4.39 | 2885682215 | 0 |
| 172.0.4.40 | 2885682216 | 0 |
| 172.0.4.41 | 2885682217 | 0 |
| 172.0.4.42 | 2885682218 | 0 |
| 172.0.4.43 | 2885682219 | 0 |
| 172.0.4.44 | 2885682220 | 0 |
| 172.0.4.45 | 2885682221 | 0 |
| 172.0.4.46 | 2885682222 | 0 |
| 172.0.4.47 | 2885682223 | 0 |
| 172.0.4.48 | 2885682224 | 0 |
| 172.0.4.49 | 2885682225 | 0 |
| 172.0.4.50 | 2885682226 | 0 |
| 172.0.4.51 | 2885682227 | 0 |
| 172.0.4.52 | 2885682228 | 0 |
| 172.0.4.53 | 2885682229 | 0 |
| 172.0.4.54 | 2885682230 | 0 |
| 172.0.4.55 | 2885682231 | 0 |
| 172.0.4.56 | 2885682232 | 0 |
| 172.0.4.57 | 2885682233 | 0 |
| 172.0.4.58 | 2885682234 | 0 |
| 172.0.4.59 | 2885682235 | 0 |
| 172.0.4.60 | 2885682236 | 0 |
| 172.0.4.61 | 2885682237 | 0 |
| 172.0.4.62 | 2885682238 | 0 |
| 172.0.4.63 | 2885682239 | 0 |
| 172.0.4.64 | 2885682240 | 0 |
| 172.0.4.65 | 2885682241 | 0 |
| 172.0.4.66 | 2885682242 | 0 |
| 172.0.4.67 | 2885682243 | 0 |
| 172.0.4.68 | 2885682244 | 0 |
| 172.0.4.69 | 2885682245 | 0 |
| 172.0.4.70 | 2885682246 | 0 |
| 172.0.4.71 | 2885682247 | 0 |
| 172.0.4.72 | 2885682248 | 0 |
| 172.0.4.73 | 2885682249 | 0 |
| 172.0.4.74 | 2885682250 | 0 |
| 172.0.4.75 | 2885682251 | 0 |
| 172.0.4.76 | 2885682252 | 0 |
| 172.0.4.77 | 2885682253 | 0 |
| 172.0.4.78 | 2885682254 | 0 |
| 172.0.4.79 | 2885682255 | 0 |
| 172.0.4.80 | 2885682256 | 0 |
| 172.0.4.81 | 2885682257 | 0 |
| 172.0.4.82 | 2885682258 | 0 |
| 172.0.4.83 | 2885682259 | 0 |
| 172.0.4.84 | 2885682260 | 0 |
| 172.0.4.85 | 2885682261 | 0 |
| IP | Numerical IP | DNS |
| 172.0.4.86 | 2885682262 | 0 |
| 172.0.4.87 | 2885682263 | 0 |
| 172.0.4.88 | 2885682264 | 0 |
| 172.0.4.89 | 2885682265 | 0 |
| 172.0.4.90 | 2885682266 | 0 |
| 172.0.4.91 | 2885682267 | 0 |
| 172.0.4.92 | 2885682268 | 0 |
| 172.0.4.93 | 2885682269 | 0 |
| 172.0.4.94 | 2885682270 | 0 |
| 172.0.4.95 | 2885682271 | 0 |
| 172.0.4.96 | 2885682272 | 0 |
| 172.0.4.97 | 2885682273 | 0 |
| 172.0.4.98 | 2885682274 | 0 |
| 172.0.4.99 | 2885682275 | 0 |
| 172.0.4.100 | 2885682276 | 0 |
| 172.0.4.101 | 2885682277 | 0 |
| 172.0.4.102 | 2885682278 | 0 |
| 172.0.4.103 | 2885682279 | 0 |
| 172.0.4.104 | 2885682280 | 0 |
| 172.0.4.105 | 2885682281 | 0 |
| 172.0.4.106 | 2885682282 | 0 |
| 172.0.4.107 | 2885682283 | 0 |
| 172.0.4.108 | 2885682284 | 0 |
| 172.0.4.109 | 2885682285 | 0 |
| 172.0.4.110 | 2885682286 | 0 |
| 172.0.4.111 | 2885682287 | 0 |
| 172.0.4.112 | 2885682288 | 0 |
| 172.0.4.113 | 2885682289 | 0 |
| 172.0.4.114 | 2885682290 | 0 |
| 172.0.4.115 | 2885682291 | 0 |
| 172.0.4.116 | 2885682292 | 0 |
| 172.0.4.117 | 2885682293 | 0 |
| 172.0.4.118 | 2885682294 | 0 |
| 172.0.4.119 | 2885682295 | 0 |
| 172.0.4.120 | 2885682296 | 0 |
| 172.0.4.121 | 2885682297 | 0 |
| 172.0.4.122 | 2885682298 | 0 |
| 172.0.4.123 | 2885682299 | 0 |
| 172.0.4.124 | 2885682300 | 0 |
| 172.0.4.125 | 2885682301 | 0 |
| 172.0.4.126 | 2885682302 | 0 |
| 172.0.4.127 | 2885682303 | 0 |
| 172.0.4.128 | 2885682304 | 0 |
| 172.0.4.129 | 2885682305 | 0 |
| 172.0.4.130 | 2885682306 | 0 |
| 172.0.4.131 | 2885682307 | 0 |
| 172.0.4.132 | 2885682308 | 0 |
| 172.0.4.133 | 2885682309 | 0 |
| 172.0.4.134 | 2885682310 | 0 |
| 172.0.4.135 | 2885682311 | 0 |
| 172.0.4.136 | 2885682312 | 0 |
| 172.0.4.137 | 2885682313 | 0 |
| 172.0.4.138 | 2885682314 | 0 |
| 172.0.4.139 | 2885682315 | 0 |
| 172.0.4.140 | 2885682316 | 0 |
| 172.0.4.141 | 2885682317 | 0 |
| 172.0.4.142 | 2885682318 | 0 |
| 172.0.4.143 | 2885682319 | 0 |
| 172.0.4.144 | 2885682320 | 0 |
| 172.0.4.145 | 2885682321 | 0 |
| 172.0.4.146 | 2885682322 | 0 |
| 172.0.4.147 | 2885682323 | 0 |
| 172.0.4.148 | 2885682324 | 0 |
| 172.0.4.149 | 2885682325 | 0 |
| 172.0.4.150 | 2885682326 | 0 |
| 172.0.4.151 | 2885682327 | 0 |
| 172.0.4.152 | 2885682328 | 0 |
| 172.0.4.153 | 2885682329 | 0 |
| 172.0.4.154 | 2885682330 | 0 |
| 172.0.4.155 | 2885682331 | 0 |
| 172.0.4.156 | 2885682332 | 0 |
| 172.0.4.157 | 2885682333 | 0 |
| 172.0.4.158 | 2885682334 | 0 |
| 172.0.4.159 | 2885682335 | 0 |
| 172.0.4.160 | 2885682336 | 0 |
| 172.0.4.161 | 2885682337 | 0 |
| 172.0.4.162 | 2885682338 | 0 |
| 172.0.4.163 | 2885682339 | 0 |
| 172.0.4.164 | 2885682340 | 0 |
| 172.0.4.165 | 2885682341 | 0 |
| 172.0.4.166 | 2885682342 | 0 |
| 172.0.4.167 | 2885682343 | 0 |
| 172.0.4.168 | 2885682344 | 0 |
| 172.0.4.169 | 2885682345 | 0 |
| 172.0.4.170 | 2885682346 | 0 |
| 172.0.4.171 | 2885682347 | 0 |
| IP | Numerical IP | DNS |
| 172.0.4.172 | 2885682348 | 0 |
| 172.0.4.173 | 2885682349 | 0 |
| 172.0.4.174 | 2885682350 | 0 |
| 172.0.4.175 | 2885682351 | 0 |
| 172.0.4.176 | 2885682352 | 0 |
| 172.0.4.177 | 2885682353 | 0 |
| 172.0.4.178 | 2885682354 | 0 |
| 172.0.4.179 | 2885682355 | 0 |
| 172.0.4.180 | 2885682356 | 0 |
| 172.0.4.181 | 2885682357 | 0 |
| 172.0.4.182 | 2885682358 | 0 |
| 172.0.4.183 | 2885682359 | 0 |
| 172.0.4.184 | 2885682360 | 0 |
| 172.0.4.185 | 2885682361 | 0 |
| 172.0.4.186 | 2885682362 | 0 |
| 172.0.4.187 | 2885682363 | 0 |
| 172.0.4.188 | 2885682364 | 0 |
| 172.0.4.189 | 2885682365 | 0 |
| 172.0.4.190 | 2885682366 | 0 |
| 172.0.4.191 | 2885682367 | 0 |
| 172.0.4.192 | 2885682368 | 0 |
| 172.0.4.193 | 2885682369 | 0 |
| 172.0.4.194 | 2885682370 | 0 |
| 172.0.4.195 | 2885682371 | 0 |
| 172.0.4.196 | 2885682372 | 0 |
| 172.0.4.197 | 2885682373 | 0 |
| 172.0.4.198 | 2885682374 | 0 |
| 172.0.4.199 | 2885682375 | 0 |
| 172.0.4.200 | 2885682376 | 0 |
| 172.0.4.201 | 2885682377 | 0 |
| 172.0.4.202 | 2885682378 | 0 |
| 172.0.4.203 | 2885682379 | 0 |
| 172.0.4.204 | 2885682380 | 0 |
| 172.0.4.205 | 2885682381 | 0 |
| 172.0.4.206 | 2885682382 | 0 |
| 172.0.4.207 | 2885682383 | 0 |
| 172.0.4.208 | 2885682384 | 0 |
| 172.0.4.209 | 2885682385 | 0 |
| 172.0.4.210 | 2885682386 | 0 |
| 172.0.4.211 | 2885682387 | 0 |
| 172.0.4.212 | 2885682388 | 0 |
| 172.0.4.213 | 2885682389 | 0 |
| 172.0.4.214 | 2885682390 | 0 |
| 172.0.4.215 | 2885682391 | 0 |
| 172.0.4.216 | 2885682392 | 0 |
| 172.0.4.217 | 2885682393 | 0 |
| 172.0.4.218 | 2885682394 | 0 |
| 172.0.4.219 | 2885682395 | 0 |
| 172.0.4.220 | 2885682396 | 0 |
| 172.0.4.221 | 2885682397 | 0 |
| 172.0.4.222 | 2885682398 | 0 |
| 172.0.4.223 | 2885682399 | 0 |
| 172.0.4.224 | 2885682400 | 0 |
| 172.0.4.225 | 2885682401 | 0 |
| 172.0.4.226 | 2885682402 | 0 |
| 172.0.4.227 | 2885682403 | 0 |
| 172.0.4.228 | 2885682404 | 0 |
| 172.0.4.229 | 2885682405 | 0 |
| 172.0.4.230 | 2885682406 | 0 |
| 172.0.4.231 | 2885682407 | 0 |
| 172.0.4.232 | 2885682408 | 0 |
| 172.0.4.233 | 2885682409 | 0 |
| 172.0.4.234 | 2885682410 | 0 |
| 172.0.4.235 | 2885682411 | 0 |
| 172.0.4.236 | 2885682412 | 0 |
| 172.0.4.237 | 2885682413 | 0 |
| 172.0.4.238 | 2885682414 | 0 |
| 172.0.4.239 | 2885682415 | 0 |
| 172.0.4.240 | 2885682416 | 0 |
| 172.0.4.241 | 2885682417 | 0 |
| 172.0.4.242 | 2885682418 | 0 |
| 172.0.4.243 | 2885682419 | 0 |
| 172.0.4.244 | 2885682420 | 0 |
| 172.0.4.245 | 2885682421 | 0 |
| 172.0.4.246 | 2885682422 | 0 |
| 172.0.4.247 | 2885682423 | 0 |
| 172.0.4.248 | 2885682424 | 0 |
| 172.0.4.249 | 2885682425 | 0 |
| 172.0.4.250 | 2885682426 | 0 |
| 172.0.4.251 | 2885682427 | 0 |
| 172.0.4.252 | 2885682428 | 0 |
| 172.0.4.253 | 2885682429 | 0 |
| 172.0.4.254 | 2885682430 | 0 |
| 172.0.4.255 | 2885682431 | 0 |