L'indirizzo IP 99.21.111 è fornito da AT&T Services, Inc., che è di proprietà del CIDR (Classless Inter-Domain Routing) 99.16.0.0/12, IP tra 99.16.0.0 a 99.31.255.255 ). Il numero di sistema autonomo (ASN) è 7018.
| ASN | 7018 |
| IP inizia con | 99.16.0.0 |
| IP finale con | 99.31.255.255 |
| ASN Nome | AT&T Services, Inc. |
| CDIR | 99.16.0.0/12 |
| IP numerico | |
| Registe | arin |
| Ultimo aggiornamento | 20/08/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | US | United States | - | Chicago | 41,85 | -87,6501 | 2018-05-06 |
| MaxMind | US | United States | - | Berwyn | 41,8321 | -87,7897 | 2018-05-06 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 99.21.111.0 | 1662349056 | 0 |
| 99.21.111.1 | 1662349057 | 0 |
| 99.21.111.2 | 1662349058 | 0 |
| 99.21.111.3 | 1662349059 | 0 |
| 99.21.111.4 | 1662349060 | 0 |
| 99.21.111.5 | 1662349061 | 0 |
| 99.21.111.6 | 1662349062 | 0 |
| 99.21.111.7 | 1662349063 | 0 |
| 99.21.111.8 | 1662349064 | 0 |
| 99.21.111.9 | 1662349065 | 0 |
| 99.21.111.10 | 1662349066 | 0 |
| 99.21.111.11 | 1662349067 | 0 |
| 99.21.111.12 | 1662349068 | 0 |
| 99.21.111.13 | 1662349069 | 0 |
| 99.21.111.14 | 1662349070 | 0 |
| 99.21.111.15 | 1662349071 | 0 |
| 99.21.111.16 | 1662349072 | 0 |
| 99.21.111.17 | 1662349073 | 0 |
| 99.21.111.18 | 1662349074 | 0 |
| 99.21.111.19 | 1662349075 | 0 |
| 99.21.111.20 | 1662349076 | 0 |
| 99.21.111.21 | 1662349077 | 0 |
| 99.21.111.22 | 1662349078 | 0 |
| 99.21.111.23 | 1662349079 | 0 |
| 99.21.111.24 | 1662349080 | 0 |
| 99.21.111.25 | 1662349081 | 0 |
| 99.21.111.26 | 1662349082 | 0 |
| 99.21.111.27 | 1662349083 | 0 |
| 99.21.111.28 | 1662349084 | 0 |
| 99.21.111.29 | 1662349085 | 0 |
| 99.21.111.30 | 1662349086 | 0 |
| 99.21.111.31 | 1662349087 | 0 |
| 99.21.111.32 | 1662349088 | 0 |
| 99.21.111.33 | 1662349089 | 0 |
| 99.21.111.34 | 1662349090 | 0 |
| 99.21.111.35 | 1662349091 | 0 |
| 99.21.111.36 | 1662349092 | 0 |
| 99.21.111.37 | 1662349093 | 0 |
| 99.21.111.38 | 1662349094 | 0 |
| 99.21.111.39 | 1662349095 | 0 |
| 99.21.111.40 | 1662349096 | 0 |
| 99.21.111.41 | 1662349097 | 0 |
| 99.21.111.42 | 1662349098 | 0 |
| 99.21.111.43 | 1662349099 | 0 |
| 99.21.111.44 | 1662349100 | 0 |
| 99.21.111.45 | 1662349101 | 0 |
| 99.21.111.46 | 1662349102 | 0 |
| 99.21.111.47 | 1662349103 | 0 |
| 99.21.111.48 | 1662349104 | 0 |
| 99.21.111.49 | 1662349105 | 0 |
| 99.21.111.50 | 1662349106 | 0 |
| 99.21.111.51 | 1662349107 | 0 |
| 99.21.111.52 | 1662349108 | 0 |
| 99.21.111.53 | 1662349109 | 0 |
| 99.21.111.54 | 1662349110 | 0 |
| 99.21.111.55 | 1662349111 | 0 |
| 99.21.111.56 | 1662349112 | 0 |
| 99.21.111.57 | 1662349113 | 0 |
| 99.21.111.58 | 1662349114 | 0 |
| 99.21.111.59 | 1662349115 | 0 |
| 99.21.111.60 | 1662349116 | 0 |
| 99.21.111.61 | 1662349117 | 0 |
| 99.21.111.62 | 1662349118 | 0 |
| 99.21.111.63 | 1662349119 | 0 |
| 99.21.111.64 | 1662349120 | 0 |
| 99.21.111.65 | 1662349121 | 0 |
| 99.21.111.66 | 1662349122 | 0 |
| 99.21.111.67 | 1662349123 | 0 |
| 99.21.111.68 | 1662349124 | 0 |
| 99.21.111.69 | 1662349125 | 0 |
| 99.21.111.70 | 1662349126 | 0 |
| 99.21.111.71 | 1662349127 | 0 |
| 99.21.111.72 | 1662349128 | 0 |
| 99.21.111.73 | 1662349129 | 0 |
| 99.21.111.74 | 1662349130 | 0 |
| 99.21.111.75 | 1662349131 | 0 |
| 99.21.111.76 | 1662349132 | 0 |
| 99.21.111.77 | 1662349133 | 0 |
| 99.21.111.78 | 1662349134 | 0 |
| 99.21.111.79 | 1662349135 | 0 |
| 99.21.111.80 | 1662349136 | 0 |
| 99.21.111.81 | 1662349137 | 0 |
| 99.21.111.82 | 1662349138 | 0 |
| 99.21.111.83 | 1662349139 | 0 |
| 99.21.111.84 | 1662349140 | 0 |
| 99.21.111.85 | 1662349141 | 0 |