L'indirizzo IP 11.99.91 è fornito da AT&T Services, Inc., che è di proprietà del CIDR (Classless Inter-Domain Routing) 12.0.0.0/8, IP tra 12.0.0.0 a 12.255.255.255 ). Il numero di sistema autonomo (ASN) è 7018.
| ASN | 7018 |
| IP inizia con | 12.0.0.0 |
| IP finale con | 12.255.255.255 |
| ASN Nome | AT&T Services, Inc. |
| CDIR | 12.0.0.0/8 |
| IP numerico | |
| Registe | arin |
| Ultimo aggiornamento | 26/10/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | US | United States | - | Columbus | 39,9664 | -83,0128 | 2017-10-26 |
| MaxMind | US | United States | - | - | 37,751 | -97,822 | 2017-10-26 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 11.99.91.0 | 191060736 | 0 |
| 11.99.91.1 | 191060737 | 0 |
| 11.99.91.2 | 191060738 | 0 |
| 11.99.91.3 | 191060739 | 0 |
| 11.99.91.4 | 191060740 | 0 |
| 11.99.91.5 | 191060741 | 0 |
| 11.99.91.6 | 191060742 | 0 |
| 11.99.91.7 | 191060743 | 0 |
| 11.99.91.8 | 191060744 | 0 |
| 11.99.91.9 | 191060745 | 0 |
| 11.99.91.10 | 191060746 | 0 |
| 11.99.91.11 | 191060747 | 0 |
| 11.99.91.12 | 191060748 | 0 |
| 11.99.91.13 | 191060749 | 0 |
| 11.99.91.14 | 191060750 | 0 |
| 11.99.91.15 | 191060751 | 0 |
| 11.99.91.16 | 191060752 | 0 |
| 11.99.91.17 | 191060753 | 0 |
| 11.99.91.18 | 191060754 | 0 |
| 11.99.91.19 | 191060755 | 0 |
| 11.99.91.20 | 191060756 | 0 |
| 11.99.91.21 | 191060757 | 0 |
| 11.99.91.22 | 191060758 | 0 |
| 11.99.91.23 | 191060759 | 0 |
| 11.99.91.24 | 191060760 | 0 |
| 11.99.91.25 | 191060761 | 0 |
| 11.99.91.26 | 191060762 | 0 |
| 11.99.91.27 | 191060763 | 0 |
| 11.99.91.28 | 191060764 | 0 |
| 11.99.91.29 | 191060765 | 0 |
| 11.99.91.30 | 191060766 | 0 |
| 11.99.91.31 | 191060767 | 0 |
| 11.99.91.32 | 191060768 | 0 |
| 11.99.91.33 | 191060769 | 0 |
| 11.99.91.34 | 191060770 | 0 |
| 11.99.91.35 | 191060771 | 0 |
| 11.99.91.36 | 191060772 | 0 |
| 11.99.91.37 | 191060773 | 0 |
| 11.99.91.38 | 191060774 | 0 |
| 11.99.91.39 | 191060775 | 0 |
| 11.99.91.40 | 191060776 | 0 |
| 11.99.91.41 | 191060777 | 0 |
| 11.99.91.42 | 191060778 | 0 |
| 11.99.91.43 | 191060779 | 0 |
| 11.99.91.44 | 191060780 | 0 |
| 11.99.91.45 | 191060781 | 0 |
| 11.99.91.46 | 191060782 | 0 |
| 11.99.91.47 | 191060783 | 0 |
| 11.99.91.48 | 191060784 | 0 |
| 11.99.91.49 | 191060785 | 0 |
| 11.99.91.50 | 191060786 | 0 |
| 11.99.91.51 | 191060787 | 0 |
| 11.99.91.52 | 191060788 | 0 |
| 11.99.91.53 | 191060789 | 0 |
| 11.99.91.54 | 191060790 | 0 |
| 11.99.91.55 | 191060791 | 0 |
| 11.99.91.56 | 191060792 | 0 |
| 11.99.91.57 | 191060793 | 0 |
| 11.99.91.58 | 191060794 | 0 |
| 11.99.91.59 | 191060795 | 0 |
| 11.99.91.60 | 191060796 | 0 |
| 11.99.91.61 | 191060797 | 0 |
| 11.99.91.62 | 191060798 | 0 |
| 11.99.91.63 | 191060799 | 0 |
| 11.99.91.64 | 191060800 | 0 |
| 11.99.91.65 | 191060801 | 0 |
| 11.99.91.66 | 191060802 | 0 |
| 11.99.91.67 | 191060803 | 0 |
| 11.99.91.68 | 191060804 | 0 |
| 11.99.91.69 | 191060805 | 0 |
| 11.99.91.70 | 191060806 | 0 |
| 11.99.91.71 | 191060807 | 0 |
| 11.99.91.72 | 191060808 | 0 |
| 11.99.91.73 | 191060809 | 0 |
| 11.99.91.74 | 191060810 | 0 |
| 11.99.91.75 | 191060811 | 0 |
| 11.99.91.76 | 191060812 | 0 |
| 11.99.91.77 | 191060813 | 0 |
| 11.99.91.78 | 191060814 | 0 |
| 11.99.91.79 | 191060815 | 0 |
| 11.99.91.80 | 191060816 | 0 |
| 11.99.91.81 | 191060817 | 0 |
| 11.99.91.82 | 191060818 | 0 |
| 11.99.91.83 | 191060819 | 0 |
| 11.99.91.84 | 191060820 | 0 |
| 11.99.91.85 | 191060821 | 0 |