Les adresses IP débutant par 12.250.3 sont fournies par AT&T Services, Inc., elles appartiennent au CIDR (Classless Inter-Domain Routing) 12.0.0.0/8, le bloc IP comprant les adresses de 12.0.0.0 à 12.255.255.255). Le numéro de système autonome (ASN) est 7018.
| ASN | 7018 |
| IP commençant par | 12.0.0.0 |
| IP se terminant par | 12.255.255.255 |
| Nom ASN | AT&T Services, Inc. |
| CDIR | 12.0.0.0/8 |
| IP numérique | |
| Registe | arin |
| Dernière mise à jour | 31/08/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | US | États-Unis | - | Columbia | 34,0007 | -81,0348 | 2017-08-30 |
| MaxMind | US | États-Unis | - | - | 41,8483 | -87,6517 | 2017-08-30 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 12.250.3.0 | 217711360 | 0 |
| 12.250.3.1 | 217711361 | 0 |
| 12.250.3.2 | 217711362 | 0 |
| 12.250.3.3 | 217711363 | 0 |
| 12.250.3.4 | 217711364 | 0 |
| 12.250.3.5 | 217711365 | 0 |
| 12.250.3.6 | 217711366 | 0 |
| 12.250.3.7 | 217711367 | 0 |
| 12.250.3.8 | 217711368 | 0 |
| 12.250.3.9 | 217711369 | 0 |
| 12.250.3.10 | 217711370 | 0 |
| 12.250.3.11 | 217711371 | 0 |
| 12.250.3.12 | 217711372 | 0 |
| 12.250.3.13 | 217711373 | 0 |
| 12.250.3.14 | 217711374 | 0 |
| 12.250.3.15 | 217711375 | 0 |
| 12.250.3.16 | 217711376 | 0 |
| 12.250.3.17 | 217711377 | 0 |
| 12.250.3.18 | 217711378 | 0 |
| 12.250.3.19 | 217711379 | 0 |
| 12.250.3.20 | 217711380 | 0 |
| 12.250.3.21 | 217711381 | 0 |
| 12.250.3.22 | 217711382 | 0 |
| 12.250.3.23 | 217711383 | 0 |
| 12.250.3.24 | 217711384 | 0 |
| 12.250.3.25 | 217711385 | 0 |
| 12.250.3.26 | 217711386 | 0 |
| 12.250.3.27 | 217711387 | 0 |
| 12.250.3.28 | 217711388 | 0 |
| 12.250.3.29 | 217711389 | 0 |
| 12.250.3.30 | 217711390 | 0 |
| 12.250.3.31 | 217711391 | 0 |
| 12.250.3.32 | 217711392 | 0 |
| 12.250.3.33 | 217711393 | 0 |
| 12.250.3.34 | 217711394 | 0 |
| 12.250.3.35 | 217711395 | 0 |
| 12.250.3.36 | 217711396 | 0 |
| 12.250.3.37 | 217711397 | 0 |
| 12.250.3.38 | 217711398 | 0 |
| 12.250.3.39 | 217711399 | 0 |
| 12.250.3.40 | 217711400 | 0 |
| 12.250.3.41 | 217711401 | 0 |
| 12.250.3.42 | 217711402 | 0 |
| 12.250.3.43 | 217711403 | 0 |
| 12.250.3.44 | 217711404 | 0 |
| 12.250.3.45 | 217711405 | 0 |
| 12.250.3.46 | 217711406 | 0 |
| 12.250.3.47 | 217711407 | 0 |
| 12.250.3.48 | 217711408 | 0 |
| 12.250.3.49 | 217711409 | 0 |
| 12.250.3.50 | 217711410 | 0 |
| 12.250.3.51 | 217711411 | 0 |
| 12.250.3.52 | 217711412 | 0 |
| 12.250.3.53 | 217711413 | 0 |
| 12.250.3.54 | 217711414 | 0 |
| 12.250.3.55 | 217711415 | 0 |
| 12.250.3.56 | 217711416 | 0 |
| 12.250.3.57 | 217711417 | 0 |
| 12.250.3.58 | 217711418 | 0 |
| 12.250.3.59 | 217711419 | 0 |
| 12.250.3.60 | 217711420 | 0 |
| 12.250.3.61 | 217711421 | 0 |
| 12.250.3.62 | 217711422 | 0 |
| 12.250.3.63 | 217711423 | 0 |
| 12.250.3.64 | 217711424 | 0 |
| 12.250.3.65 | 217711425 | 0 |
| 12.250.3.66 | 217711426 | 0 |
| 12.250.3.67 | 217711427 | 0 |
| 12.250.3.68 | 217711428 | 0 |
| 12.250.3.69 | 217711429 | 0 |
| 12.250.3.70 | 217711430 | 0 |
| 12.250.3.71 | 217711431 | 0 |
| 12.250.3.72 | 217711432 | 0 |
| 12.250.3.73 | 217711433 | 0 |
| 12.250.3.74 | 217711434 | 0 |
| 12.250.3.75 | 217711435 | 0 |
| 12.250.3.76 | 217711436 | 0 |
| 12.250.3.77 | 217711437 | 0 |
| 12.250.3.78 | 217711438 | 0 |
| 12.250.3.79 | 217711439 | 0 |
| 12.250.3.80 | 217711440 | 0 |
| 12.250.3.81 | 217711441 | 0 |
| 12.250.3.82 | 217711442 | 0 |
| 12.250.3.83 | 217711443 | 0 |
| 12.250.3.84 | 217711444 | 0 |
| 12.250.3.85 | 217711445 | 0 |