| Range From | Range To | Organisation |
|---|---|---|
| 99.138.0.0 | 99.138.15.255 |  AT&T Enterprises, LLC |
| 99.138.16.0 | 99.138.16.7 | KIDS FIRST WEE ONES |
| 99.138.16.8 | 99.138.16.215 | AT&T Enterprises, LLC |
| 99.138.16.216 | 99.138.16.223 | SearsOptical |
| 99.138.16.224 | 99.138.16.247 | AT&T Enterprises, LLC |
| 99.138.16.248 | 99.138.16.255 | GRANGE INSURANCE-080825172151 |
| 99.138.17.0 | 99.138.17.15 | AT&T Enterprises, LLC |
| 99.138.17.16 | 99.138.17.23 | NILES MARATHON-081209121926 |
| 99.138.17.24 | 99.138.18.15 | AT&T Enterprises, LLC |
| 99.138.18.16 | 99.138.18.23 | RUDICK FORENSIC ENGINEERING IN-080123203835 |
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