L'indirizzo IP 172.3.123 è fornito da AT&T Services, Inc., che è di proprietà del CIDR (Classless Inter-Domain Routing) 172.0.0.0/12, IP tra 172.0.0.0 a 172.15.255.255 ). Il numero di sistema autonomo (ASN) è 7018.
| ASN | 7018 |
| IP inizia con | 172.0.0.0 |
| IP finale con | 172.15.255.255 |
| ASN Nome | AT&T Services, Inc. |
| CDIR | 172.0.0.0/12 |
| IP numerico | |
| Registe | arin |
| Ultimo aggiornamento | 23/09/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | US | United States | - | Mobile | 30,6944 | -88,0431 | 2017-09-22 |
| MaxMind | US | United States | - | Mobile | 30,6311 | -88,2819 | 2017-09-22 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 172.3.123.0 | 2885909248 | 0 |
| 172.3.123.1 | 2885909249 | 0 |
| 172.3.123.2 | 2885909250 | 0 |
| 172.3.123.3 | 2885909251 | 0 |
| 172.3.123.4 | 2885909252 | 0 |
| 172.3.123.5 | 2885909253 | 0 |
| 172.3.123.6 | 2885909254 | 0 |
| 172.3.123.7 | 2885909255 | 0 |
| 172.3.123.8 | 2885909256 | 0 |
| 172.3.123.9 | 2885909257 | 0 |
| 172.3.123.10 | 2885909258 | 0 |
| 172.3.123.11 | 2885909259 | 0 |
| 172.3.123.12 | 2885909260 | 0 |
| 172.3.123.13 | 2885909261 | 0 |
| 172.3.123.14 | 2885909262 | 0 |
| 172.3.123.15 | 2885909263 | 0 |
| 172.3.123.16 | 2885909264 | 0 |
| 172.3.123.17 | 2885909265 | 0 |
| 172.3.123.18 | 2885909266 | 0 |
| 172.3.123.19 | 2885909267 | 0 |
| 172.3.123.20 | 2885909268 | 0 |
| 172.3.123.21 | 2885909269 | 0 |
| 172.3.123.22 | 2885909270 | 0 |
| 172.3.123.23 | 2885909271 | 0 |
| 172.3.123.24 | 2885909272 | 0 |
| 172.3.123.25 | 2885909273 | 0 |
| 172.3.123.26 | 2885909274 | 0 |
| 172.3.123.27 | 2885909275 | 0 |
| 172.3.123.28 | 2885909276 | 0 |
| 172.3.123.29 | 2885909277 | 0 |
| 172.3.123.30 | 2885909278 | 0 |
| 172.3.123.31 | 2885909279 | 0 |
| 172.3.123.32 | 2885909280 | 0 |
| 172.3.123.33 | 2885909281 | 0 |
| 172.3.123.34 | 2885909282 | 0 |
| 172.3.123.35 | 2885909283 | 0 |
| 172.3.123.36 | 2885909284 | 0 |
| 172.3.123.37 | 2885909285 | 0 |
| 172.3.123.38 | 2885909286 | 0 |
| 172.3.123.39 | 2885909287 | 0 |
| 172.3.123.40 | 2885909288 | 0 |
| 172.3.123.41 | 2885909289 | 0 |
| 172.3.123.42 | 2885909290 | 0 |
| 172.3.123.43 | 2885909291 | 0 |
| 172.3.123.44 | 2885909292 | 0 |
| 172.3.123.45 | 2885909293 | 0 |
| 172.3.123.46 | 2885909294 | 0 |
| 172.3.123.47 | 2885909295 | 0 |
| 172.3.123.48 | 2885909296 | 0 |
| 172.3.123.49 | 2885909297 | 0 |
| 172.3.123.50 | 2885909298 | 0 |
| 172.3.123.51 | 2885909299 | 0 |
| 172.3.123.52 | 2885909300 | 0 |
| 172.3.123.53 | 2885909301 | 0 |
| 172.3.123.54 | 2885909302 | 0 |
| 172.3.123.55 | 2885909303 | 0 |
| 172.3.123.56 | 2885909304 | 0 |
| 172.3.123.57 | 2885909305 | 0 |
| 172.3.123.58 | 2885909306 | 0 |
| 172.3.123.59 | 2885909307 | 0 |
| 172.3.123.60 | 2885909308 | 0 |
| 172.3.123.61 | 2885909309 | 0 |
| 172.3.123.62 | 2885909310 | 0 |
| 172.3.123.63 | 2885909311 | 0 |
| 172.3.123.64 | 2885909312 | 0 |
| 172.3.123.65 | 2885909313 | 0 |
| 172.3.123.66 | 2885909314 | 0 |
| 172.3.123.67 | 2885909315 | 0 |
| 172.3.123.68 | 2885909316 | 0 |
| 172.3.123.69 | 2885909317 | 0 |
| 172.3.123.70 | 2885909318 | 0 |
| 172.3.123.71 | 2885909319 | 0 |
| 172.3.123.72 | 2885909320 | 0 |
| 172.3.123.73 | 2885909321 | 0 |
| 172.3.123.74 | 2885909322 | 0 |
| 172.3.123.75 | 2885909323 | 0 |
| 172.3.123.76 | 2885909324 | 0 |
| 172.3.123.77 | 2885909325 | 0 |
| 172.3.123.78 | 2885909326 | 0 |
| 172.3.123.79 | 2885909327 | 0 |
| 172.3.123.80 | 2885909328 | 0 |
| 172.3.123.81 | 2885909329 | 0 |
| 172.3.123.82 | 2885909330 | 0 |
| 172.3.123.83 | 2885909331 | 0 |
| 172.3.123.84 | 2885909332 | 0 |
| 172.3.123.85 | 2885909333 | 0 |