L'indirizzo IP 172.17.81 è fornito da AT&T Services, Inc., che è di proprietà del CIDR (Classless Inter-Domain Routing) 172.0.0.0/12, IP tra 172.0.0.0 a 172.15.255.255 ). Il numero di sistema autonomo (ASN) è 7018.
| ASN | 7018 |
| IP inizia con | 172.0.0.0 |
| IP finale con | 172.15.255.255 |
| ASN Nome | AT&T Services, Inc. |
| CDIR | 172.0.0.0/12 |
| IP numerico | |
| Registe | arin |
| Ultimo aggiornamento | 04/07/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | - | - | - | - | 0 | 0 | 2017-07-08 |
| MaxMind | US | United States | - | - | 37,751 | -97,822 | 2017-07-08 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 172.17.81.0 | 2886816000 | 0 |
| 172.17.81.1 | 2886816001 | 0 |
| 172.17.81.2 | 2886816002 | 0 |
| 172.17.81.3 | 2886816003 | 0 |
| 172.17.81.4 | 2886816004 | 0 |
| 172.17.81.5 | 2886816005 | 0 |
| 172.17.81.6 | 2886816006 | 0 |
| 172.17.81.7 | 2886816007 | 0 |
| 172.17.81.8 | 2886816008 | 0 |
| 172.17.81.9 | 2886816009 | 0 |
| 172.17.81.10 | 2886816010 | 0 |
| 172.17.81.11 | 2886816011 | 0 |
| 172.17.81.12 | 2886816012 | 0 |
| 172.17.81.13 | 2886816013 | 0 |
| 172.17.81.14 | 2886816014 | 0 |
| 172.17.81.15 | 2886816015 | 0 |
| 172.17.81.16 | 2886816016 | 0 |
| 172.17.81.17 | 2886816017 | 0 |
| 172.17.81.18 | 2886816018 | 0 |
| 172.17.81.19 | 2886816019 | 0 |
| 172.17.81.20 | 2886816020 | 0 |
| 172.17.81.21 | 2886816021 | 0 |
| 172.17.81.22 | 2886816022 | 0 |
| 172.17.81.23 | 2886816023 | 0 |
| 172.17.81.24 | 2886816024 | 0 |
| 172.17.81.25 | 2886816025 | 0 |
| 172.17.81.26 | 2886816026 | 0 |
| 172.17.81.27 | 2886816027 | 0 |
| 172.17.81.28 | 2886816028 | 0 |
| 172.17.81.29 | 2886816029 | 0 |
| 172.17.81.30 | 2886816030 | 0 |
| 172.17.81.31 | 2886816031 | 0 |
| 172.17.81.32 | 2886816032 | 0 |
| 172.17.81.33 | 2886816033 | 0 |
| 172.17.81.34 | 2886816034 | 0 |
| 172.17.81.35 | 2886816035 | 0 |
| 172.17.81.36 | 2886816036 | 0 |
| 172.17.81.37 | 2886816037 | 0 |
| 172.17.81.38 | 2886816038 | 0 |
| 172.17.81.39 | 2886816039 | 0 |
| 172.17.81.40 | 2886816040 | 0 |
| 172.17.81.41 | 2886816041 | 0 |
| 172.17.81.42 | 2886816042 | 0 |
| 172.17.81.43 | 2886816043 | 0 |
| 172.17.81.44 | 2886816044 | 0 |
| 172.17.81.45 | 2886816045 | 0 |
| 172.17.81.46 | 2886816046 | 0 |
| 172.17.81.47 | 2886816047 | 0 |
| 172.17.81.48 | 2886816048 | 0 |
| 172.17.81.49 | 2886816049 | 0 |
| 172.17.81.50 | 2886816050 | 0 |
| 172.17.81.51 | 2886816051 | 0 |
| 172.17.81.52 | 2886816052 | 0 |
| 172.17.81.53 | 2886816053 | 0 |
| 172.17.81.54 | 2886816054 | 0 |
| 172.17.81.55 | 2886816055 | 0 |
| 172.17.81.56 | 2886816056 | 0 |
| 172.17.81.57 | 2886816057 | 0 |
| 172.17.81.58 | 2886816058 | 0 |
| 172.17.81.59 | 2886816059 | 0 |
| 172.17.81.60 | 2886816060 | 0 |
| 172.17.81.61 | 2886816061 | 0 |
| 172.17.81.62 | 2886816062 | 0 |
| 172.17.81.63 | 2886816063 | 0 |
| 172.17.81.64 | 2886816064 | 0 |
| 172.17.81.65 | 2886816065 | 0 |
| 172.17.81.66 | 2886816066 | 0 |
| 172.17.81.67 | 2886816067 | 0 |
| 172.17.81.68 | 2886816068 | 0 |
| 172.17.81.69 | 2886816069 | 0 |
| 172.17.81.70 | 2886816070 | 0 |
| 172.17.81.71 | 2886816071 | 0 |
| 172.17.81.72 | 2886816072 | 0 |
| 172.17.81.73 | 2886816073 | 0 |
| 172.17.81.74 | 2886816074 | 0 |
| 172.17.81.75 | 2886816075 | 0 |
| 172.17.81.76 | 2886816076 | 0 |
| 172.17.81.77 | 2886816077 | 0 |
| 172.17.81.78 | 2886816078 | 0 |
| 172.17.81.79 | 2886816079 | 0 |
| 172.17.81.80 | 2886816080 | 0 |
| 172.17.81.81 | 2886816081 | 0 |
| 172.17.81.82 | 2886816082 | 0 |
| 172.17.81.83 | 2886816083 | 0 |
| 172.17.81.84 | 2886816084 | 0 |
| 172.17.81.85 | 2886816085 | 0 |