La dirección IP 172.20.51 es proporcionada por AT&T Services, Inc., que es propiedad de la CIDR (Classless Inter-Domain Routing) 172.0.0.0/12, IP entre 172.0.0.0 a 172.15.255.255 ). El número de sistema autónomo (ASN) es 7018.
| ASN | 7018 |
| IP que comienzan con | 172.0.0.0 |
| IP que termina con | 172.15.255.255 |
| ASN Nombre | AT&T Services, Inc. |
| CDIR | 172.0.0.0/12 |
| IP numérica | |
| Registe | arin |
| Última actualización | 04/07/2017 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | - | - | - | - | 0 | 0 | 2017-07-04 |
| MaxMind | US | Estados Unidos | - | Valencia | 34,418 | -118,5662 | 2017-07-04 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 172.20.51.0 | 2887004928 | 0 |
| 172.20.51.1 | 2887004929 | 0 |
| 172.20.51.2 | 2887004930 | 0 |
| 172.20.51.3 | 2887004931 | 0 |
| 172.20.51.4 | 2887004932 | 0 |
| 172.20.51.5 | 2887004933 | 0 |
| 172.20.51.6 | 2887004934 | 0 |
| 172.20.51.7 | 2887004935 | 0 |
| 172.20.51.8 | 2887004936 | 0 |
| 172.20.51.9 | 2887004937 | 0 |
| 172.20.51.10 | 2887004938 | 0 |
| 172.20.51.11 | 2887004939 | 0 |
| 172.20.51.12 | 2887004940 | 0 |
| 172.20.51.13 | 2887004941 | 0 |
| 172.20.51.14 | 2887004942 | 0 |
| 172.20.51.15 | 2887004943 | 0 |
| 172.20.51.16 | 2887004944 | 0 |
| 172.20.51.17 | 2887004945 | 0 |
| 172.20.51.18 | 2887004946 | 0 |
| 172.20.51.19 | 2887004947 | 0 |
| 172.20.51.20 | 2887004948 | 0 |
| 172.20.51.21 | 2887004949 | 0 |
| 172.20.51.22 | 2887004950 | 0 |
| 172.20.51.23 | 2887004951 | 0 |
| 172.20.51.24 | 2887004952 | 0 |
| 172.20.51.25 | 2887004953 | 0 |
| 172.20.51.26 | 2887004954 | 0 |
| 172.20.51.27 | 2887004955 | 0 |
| 172.20.51.28 | 2887004956 | 0 |
| 172.20.51.29 | 2887004957 | 0 |
| 172.20.51.30 | 2887004958 | 0 |
| 172.20.51.31 | 2887004959 | 0 |
| 172.20.51.32 | 2887004960 | 0 |
| 172.20.51.33 | 2887004961 | 0 |
| 172.20.51.34 | 2887004962 | 0 |
| 172.20.51.35 | 2887004963 | 0 |
| 172.20.51.36 | 2887004964 | 0 |
| 172.20.51.37 | 2887004965 | 0 |
| 172.20.51.38 | 2887004966 | 0 |
| 172.20.51.39 | 2887004967 | 0 |
| 172.20.51.40 | 2887004968 | 0 |
| 172.20.51.41 | 2887004969 | 0 |
| 172.20.51.42 | 2887004970 | 0 |
| 172.20.51.43 | 2887004971 | 0 |
| 172.20.51.44 | 2887004972 | 0 |
| 172.20.51.45 | 2887004973 | 0 |
| 172.20.51.46 | 2887004974 | 0 |
| 172.20.51.47 | 2887004975 | 0 |
| 172.20.51.48 | 2887004976 | 0 |
| 172.20.51.49 | 2887004977 | 0 |
| 172.20.51.50 | 2887004978 | 0 |
| 172.20.51.51 | 2887004979 | 0 |
| 172.20.51.52 | 2887004980 | 0 |
| 172.20.51.53 | 2887004981 | 0 |
| 172.20.51.54 | 2887004982 | 0 |
| 172.20.51.55 | 2887004983 | 0 |
| 172.20.51.56 | 2887004984 | 0 |
| 172.20.51.57 | 2887004985 | 0 |
| 172.20.51.58 | 2887004986 | 0 |
| 172.20.51.59 | 2887004987 | 0 |
| 172.20.51.60 | 2887004988 | 0 |
| 172.20.51.61 | 2887004989 | 0 |
| 172.20.51.62 | 2887004990 | 0 |
| 172.20.51.63 | 2887004991 | 0 |
| 172.20.51.64 | 2887004992 | 0 |
| 172.20.51.65 | 2887004993 | 0 |
| 172.20.51.66 | 2887004994 | 0 |
| 172.20.51.67 | 2887004995 | 0 |
| 172.20.51.68 | 2887004996 | 0 |
| 172.20.51.69 | 2887004997 | 0 |
| 172.20.51.70 | 2887004998 | 0 |
| 172.20.51.71 | 2887004999 | 0 |
| 172.20.51.72 | 2887005000 | 0 |
| 172.20.51.73 | 2887005001 | 0 |
| 172.20.51.74 | 2887005002 | 0 |
| 172.20.51.75 | 2887005003 | 0 |
| 172.20.51.76 | 2887005004 | 0 |
| 172.20.51.77 | 2887005005 | 0 |
| 172.20.51.78 | 2887005006 | 0 |
| 172.20.51.79 | 2887005007 | 0 |
| 172.20.51.80 | 2887005008 | 0 |
| 172.20.51.81 | 2887005009 | 0 |
| 172.20.51.82 | 2887005010 | 0 |
| 172.20.51.83 | 2887005011 | 0 |
| 172.20.51.84 | 2887005012 | 0 |
| 172.20.51.85 | 2887005013 | 0 |