Les adresses IP débutant par 99.51.230 sont fournies par AT&T Services, Inc., elles appartiennent au CIDR (Classless Inter-Domain Routing) 99.48.0.0/13, le bloc IP comprant les adresses de 99.48.0.0 à 99.55.255.255). Le numéro de système autonome (ASN) est 7018.
| ASN | 7018 |
| IP commençant par | 99.48.0.0 |
| IP se terminant par | 99.55.255.255 |
| Nom ASN | AT&T Services, Inc. |
| CDIR | 99.48.0.0/13 |
| IP numérique | |
| Registe | arin |
| Dernière mise à jour | 12/02/2018 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | US | États-Unis | - | Chicago | 41,85 | -87,6501 | 2018-02-11 |
| MaxMind | US | États-Unis | - | Harvey | 41,6088 | -87,6739 | 2018-02-11 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 99.51.230.0 | 1664345600 | 0 |
| 99.51.230.1 | 1664345601 | 0 |
| 99.51.230.2 | 1664345602 | 0 |
| 99.51.230.3 | 1664345603 | 0 |
| 99.51.230.4 | 1664345604 | 0 |
| 99.51.230.5 | 1664345605 | 0 |
| 99.51.230.6 | 1664345606 | 0 |
| 99.51.230.7 | 1664345607 | 0 |
| 99.51.230.8 | 1664345608 | 0 |
| 99.51.230.9 | 1664345609 | 0 |
| 99.51.230.10 | 1664345610 | 0 |
| 99.51.230.11 | 1664345611 | 0 |
| 99.51.230.12 | 1664345612 | 0 |
| 99.51.230.13 | 1664345613 | 0 |
| 99.51.230.14 | 1664345614 | 0 |
| 99.51.230.15 | 1664345615 | 0 |
| 99.51.230.16 | 1664345616 | 0 |
| 99.51.230.17 | 1664345617 | 0 |
| 99.51.230.18 | 1664345618 | 0 |
| 99.51.230.19 | 1664345619 | 0 |
| 99.51.230.20 | 1664345620 | 0 |
| 99.51.230.21 | 1664345621 | 0 |
| 99.51.230.22 | 1664345622 | 0 |
| 99.51.230.23 | 1664345623 | 0 |
| 99.51.230.24 | 1664345624 | 0 |
| 99.51.230.25 | 1664345625 | 0 |
| 99.51.230.26 | 1664345626 | 0 |
| 99.51.230.27 | 1664345627 | 0 |
| 99.51.230.28 | 1664345628 | 0 |
| 99.51.230.29 | 1664345629 | 0 |
| 99.51.230.30 | 1664345630 | 0 |
| 99.51.230.31 | 1664345631 | 0 |
| 99.51.230.32 | 1664345632 | 0 |
| 99.51.230.33 | 1664345633 | 0 |
| 99.51.230.34 | 1664345634 | 0 |
| 99.51.230.35 | 1664345635 | 0 |
| 99.51.230.36 | 1664345636 | 0 |
| 99.51.230.37 | 1664345637 | 0 |
| 99.51.230.38 | 1664345638 | 0 |
| 99.51.230.39 | 1664345639 | 0 |
| 99.51.230.40 | 1664345640 | 0 |
| 99.51.230.41 | 1664345641 | 0 |
| 99.51.230.42 | 1664345642 | 0 |
| 99.51.230.43 | 1664345643 | 0 |
| 99.51.230.44 | 1664345644 | 0 |
| 99.51.230.45 | 1664345645 | 0 |
| 99.51.230.46 | 1664345646 | 0 |
| 99.51.230.47 | 1664345647 | 0 |
| 99.51.230.48 | 1664345648 | 0 |
| 99.51.230.49 | 1664345649 | 0 |
| 99.51.230.50 | 1664345650 | 0 |
| 99.51.230.51 | 1664345651 | 0 |
| 99.51.230.52 | 1664345652 | 0 |
| 99.51.230.53 | 1664345653 | 0 |
| 99.51.230.54 | 1664345654 | 0 |
| 99.51.230.55 | 1664345655 | 0 |
| 99.51.230.56 | 1664345656 | 0 |
| 99.51.230.57 | 1664345657 | 0 |
| 99.51.230.58 | 1664345658 | 0 |
| 99.51.230.59 | 1664345659 | 0 |
| 99.51.230.60 | 1664345660 | 0 |
| 99.51.230.61 | 1664345661 | 0 |
| 99.51.230.62 | 1664345662 | 0 |
| 99.51.230.63 | 1664345663 | 0 |
| 99.51.230.64 | 1664345664 | 0 |
| 99.51.230.65 | 1664345665 | 0 |
| 99.51.230.66 | 1664345666 | 0 |
| 99.51.230.67 | 1664345667 | 0 |
| 99.51.230.68 | 1664345668 | 0 |
| 99.51.230.69 | 1664345669 | 0 |
| 99.51.230.70 | 1664345670 | 0 |
| 99.51.230.71 | 1664345671 | 0 |
| 99.51.230.72 | 1664345672 | 0 |
| 99.51.230.73 | 1664345673 | 0 |
| 99.51.230.74 | 1664345674 | 0 |
| 99.51.230.75 | 1664345675 | 0 |
| 99.51.230.76 | 1664345676 | 0 |
| 99.51.230.77 | 1664345677 | 0 |
| 99.51.230.78 | 1664345678 | 0 |
| 99.51.230.79 | 1664345679 | 0 |
| 99.51.230.80 | 1664345680 | 0 |
| 99.51.230.81 | 1664345681 | 0 |
| 99.51.230.82 | 1664345682 | 0 |
| 99.51.230.83 | 1664345683 | 0 |
| 99.51.230.84 | 1664345684 | 0 |
| 99.51.230.85 | 1664345685 | 0 |