The IP address 66.21.244 is provided by AT&T Data Communications Services, it's belong to the CDIR (Classless Inter-Domain Routing) 66.21.241.0/24 (range 66.21.241.0 to 66.21.241.255). The autonomous system number (ASN) is 2386.
| ASN | 2386 |
| IP starting by | 66.21.241.0 |
| IP ending by | 66.21.241.255 |
| ASN Name | AT&T Data Communications Services |
| CDIR | 66.21.241.0/24 |
| Numerical IP | |
| Registry | arin |
| Last update | 04/07/2017 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Chicago | 41.85 | -87.6501 | 2017-07-04 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2017-07-04 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 66.21.244.0 | 1108734976 | 0 |
| 66.21.244.1 | 1108734977 | 0 |
| 66.21.244.2 | 1108734978 | 0 |
| 66.21.244.3 | 1108734979 | 0 |
| 66.21.244.4 | 1108734980 | 0 |
| 66.21.244.5 | 1108734981 | 0 |
| 66.21.244.6 | 1108734982 | 0 |
| 66.21.244.7 | 1108734983 | 0 |
| 66.21.244.8 | 1108734984 | 0 |
| 66.21.244.9 | 1108734985 | 0 |
| 66.21.244.10 | 1108734986 | 0 |
| 66.21.244.11 | 1108734987 | 0 |
| 66.21.244.12 | 1108734988 | 0 |
| 66.21.244.13 | 1108734989 | 0 |
| 66.21.244.14 | 1108734990 | 0 |
| 66.21.244.15 | 1108734991 | 0 |
| 66.21.244.16 | 1108734992 | 0 |
| 66.21.244.17 | 1108734993 | 0 |
| 66.21.244.18 | 1108734994 | 0 |
| 66.21.244.19 | 1108734995 | 0 |
| 66.21.244.20 | 1108734996 | 0 |
| 66.21.244.21 | 1108734997 | 0 |
| 66.21.244.22 | 1108734998 | 0 |
| 66.21.244.23 | 1108734999 | 0 |
| 66.21.244.24 | 1108735000 | 0 |
| 66.21.244.25 | 1108735001 | 0 |
| 66.21.244.26 | 1108735002 | 0 |
| 66.21.244.27 | 1108735003 | 0 |
| 66.21.244.28 | 1108735004 | 0 |
| 66.21.244.29 | 1108735005 | 0 |
| 66.21.244.30 | 1108735006 | 0 |
| 66.21.244.31 | 1108735007 | 0 |
| 66.21.244.32 | 1108735008 | 0 |
| 66.21.244.33 | 1108735009 | 0 |
| 66.21.244.34 | 1108735010 | 0 |
| 66.21.244.35 | 1108735011 | 0 |
| 66.21.244.36 | 1108735012 | 0 |
| 66.21.244.37 | 1108735013 | 0 |
| 66.21.244.38 | 1108735014 | 0 |
| 66.21.244.39 | 1108735015 | 0 |
| 66.21.244.40 | 1108735016 | 0 |
| 66.21.244.41 | 1108735017 | 0 |
| 66.21.244.42 | 1108735018 | 0 |
| 66.21.244.43 | 1108735019 | 0 |
| 66.21.244.44 | 1108735020 | 0 |
| 66.21.244.45 | 1108735021 | 0 |
| 66.21.244.46 | 1108735022 | 0 |
| 66.21.244.47 | 1108735023 | 0 |
| 66.21.244.48 | 1108735024 | 0 |
| 66.21.244.49 | 1108735025 | 0 |
| 66.21.244.50 | 1108735026 | 0 |
| 66.21.244.51 | 1108735027 | 0 |
| 66.21.244.52 | 1108735028 | 0 |
| 66.21.244.53 | 1108735029 | 0 |
| 66.21.244.54 | 1108735030 | 0 |
| 66.21.244.55 | 1108735031 | 0 |
| 66.21.244.56 | 1108735032 | 0 |
| 66.21.244.57 | 1108735033 | 0 |
| 66.21.244.58 | 1108735034 | 0 |
| 66.21.244.59 | 1108735035 | 0 |
| 66.21.244.60 | 1108735036 | 0 |
| 66.21.244.61 | 1108735037 | 0 |
| 66.21.244.62 | 1108735038 | 0 |
| 66.21.244.63 | 1108735039 | 0 |
| 66.21.244.64 | 1108735040 | 0 |
| 66.21.244.65 | 1108735041 | 0 |
| 66.21.244.66 | 1108735042 | 0 |
| 66.21.244.67 | 1108735043 | 0 |
| 66.21.244.68 | 1108735044 | 0 |
| 66.21.244.69 | 1108735045 | 0 |
| 66.21.244.70 | 1108735046 | 0 |
| 66.21.244.71 | 1108735047 | 0 |
| 66.21.244.72 | 1108735048 | 0 |
| 66.21.244.73 | 1108735049 | 0 |
| 66.21.244.74 | 1108735050 | 0 |
| 66.21.244.75 | 1108735051 | 0 |
| 66.21.244.76 | 1108735052 | 0 |
| 66.21.244.77 | 1108735053 | 0 |
| 66.21.244.78 | 1108735054 | 0 |
| 66.21.244.79 | 1108735055 | 0 |
| 66.21.244.80 | 1108735056 | 0 |
| 66.21.244.81 | 1108735057 | 0 |
| 66.21.244.82 | 1108735058 | 0 |
| 66.21.244.83 | 1108735059 | 0 |
| 66.21.244.84 | 1108735060 | 0 |
| 66.21.244.85 | 1108735061 | 0 |