The IP address 199.121.138 is provided by DoD Network Information Center, it's belong to the CDIR (Classless Inter-Domain Routing) 199.121.0.0/16 (range 199.121.0.0 to 199.121.255.255). The autonomous system number (ASN) is 721.
| ASN | 721 |
| IP starting by | 199.121.0.0 |
| IP ending by | 199.121.255.255 |
| ASN Name | DoD Network Information Center |
| CDIR | 199.121.0.0/16 |
| Numerical IP | |
| Registry | arin |
| Last update | 15/01/2020 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Columbus | 39.9664 | -83.0128 | 2020-01-15 |
| MaxMind | US | United States | - | Virginia Beach | 36.9205 | -76.0192 | 2020-01-15 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |