L'indirizzo IP 172.3.1 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 | 16/07/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | US | United States | - | Los Angeles | 34,0522 | -118,2437 | 2017-07-16 |
| MaxMind | US | United States | - | South Gate | 33,9485 | -118,2017 | 2017-07-16 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 172.3.1.0 | 2885878016 | 0 |
| 172.3.1.1 | 2885878017 | 0 |
| 172.3.1.2 | 2885878018 | 0 |
| 172.3.1.3 | 2885878019 | 0 |
| 172.3.1.4 | 2885878020 | 0 |
| 172.3.1.5 | 2885878021 | 0 |
| 172.3.1.6 | 2885878022 | 0 |
| 172.3.1.7 | 2885878023 | 0 |
| 172.3.1.8 | 2885878024 | 0 |
| 172.3.1.9 | 2885878025 | 0 |
| 172.3.1.10 | 2885878026 | 0 |
| 172.3.1.11 | 2885878027 | 0 |
| 172.3.1.12 | 2885878028 | 0 |
| 172.3.1.13 | 2885878029 | 0 |
| 172.3.1.14 | 2885878030 | 0 |
| 172.3.1.15 | 2885878031 | 0 |
| 172.3.1.16 | 2885878032 | 0 |
| 172.3.1.17 | 2885878033 | 0 |
| 172.3.1.18 | 2885878034 | 0 |
| 172.3.1.19 | 2885878035 | 0 |
| 172.3.1.20 | 2885878036 | 0 |
| 172.3.1.21 | 2885878037 | 0 |
| 172.3.1.22 | 2885878038 | 0 |
| 172.3.1.23 | 2885878039 | 0 |
| 172.3.1.24 | 2885878040 | 0 |
| 172.3.1.25 | 2885878041 | 0 |
| 172.3.1.26 | 2885878042 | 0 |
| 172.3.1.27 | 2885878043 | 0 |
| 172.3.1.28 | 2885878044 | 0 |
| 172.3.1.29 | 2885878045 | 0 |
| 172.3.1.30 | 2885878046 | 0 |
| 172.3.1.31 | 2885878047 | 0 |
| 172.3.1.32 | 2885878048 | 0 |
| 172.3.1.33 | 2885878049 | 0 |
| 172.3.1.34 | 2885878050 | 0 |
| 172.3.1.35 | 2885878051 | 0 |
| 172.3.1.36 | 2885878052 | 0 |
| 172.3.1.37 | 2885878053 | 0 |
| 172.3.1.38 | 2885878054 | 0 |
| 172.3.1.39 | 2885878055 | 0 |
| 172.3.1.40 | 2885878056 | 0 |
| 172.3.1.41 | 2885878057 | 0 |
| 172.3.1.42 | 2885878058 | 0 |
| 172.3.1.43 | 2885878059 | 0 |
| 172.3.1.44 | 2885878060 | 0 |
| 172.3.1.45 | 2885878061 | 0 |
| 172.3.1.46 | 2885878062 | 0 |
| 172.3.1.47 | 2885878063 | 0 |
| 172.3.1.48 | 2885878064 | 0 |
| 172.3.1.49 | 2885878065 | 0 |
| 172.3.1.50 | 2885878066 | 0 |
| 172.3.1.51 | 2885878067 | 0 |
| 172.3.1.52 | 2885878068 | 0 |
| 172.3.1.53 | 2885878069 | 0 |
| 172.3.1.54 | 2885878070 | 0 |
| 172.3.1.55 | 2885878071 | 0 |
| 172.3.1.56 | 2885878072 | 0 |
| 172.3.1.57 | 2885878073 | 0 |
| 172.3.1.58 | 2885878074 | 0 |
| 172.3.1.59 | 2885878075 | 0 |
| 172.3.1.60 | 2885878076 | 0 |
| 172.3.1.61 | 2885878077 | 0 |
| 172.3.1.62 | 2885878078 | 0 |
| 172.3.1.63 | 2885878079 | 0 |
| 172.3.1.64 | 2885878080 | 0 |
| 172.3.1.65 | 2885878081 | 0 |
| 172.3.1.66 | 2885878082 | 0 |
| 172.3.1.67 | 2885878083 | 0 |
| 172.3.1.68 | 2885878084 | 0 |
| 172.3.1.69 | 2885878085 | 0 |
| 172.3.1.70 | 2885878086 | 0 |
| 172.3.1.71 | 2885878087 | 0 |
| 172.3.1.72 | 2885878088 | 0 |
| 172.3.1.73 | 2885878089 | 0 |
| 172.3.1.74 | 2885878090 | 0 |
| 172.3.1.75 | 2885878091 | 0 |
| 172.3.1.76 | 2885878092 | 0 |
| 172.3.1.77 | 2885878093 | 0 |
| 172.3.1.78 | 2885878094 | 0 |
| 172.3.1.79 | 2885878095 | 0 |
| 172.3.1.80 | 2885878096 | 0 |
| 172.3.1.81 | 2885878097 | 0 |
| 172.3.1.82 | 2885878098 | 0 |
| 172.3.1.83 | 2885878099 | 0 |
| 172.3.1.84 | 2885878100 | 0 |
| 172.3.1.85 | 2885878101 | 0 |
| IP | Numerical IP | DNS |
| 172.3.1.86 | 2885878102 | 0 |
| 172.3.1.87 | 2885878103 | 0 |
| 172.3.1.88 | 2885878104 | 0 |
| 172.3.1.89 | 2885878105 | 0 |
| 172.3.1.90 | 2885878106 | 0 |
| 172.3.1.91 | 2885878107 | 0 |
| 172.3.1.92 | 2885878108 | 0 |
| 172.3.1.93 | 2885878109 | 0 |
| 172.3.1.94 | 2885878110 | 0 |
| 172.3.1.95 | 2885878111 | 0 |
| 172.3.1.96 | 2885878112 | 0 |
| 172.3.1.97 | 2885878113 | 0 |
| 172.3.1.98 | 2885878114 | 0 |
| 172.3.1.99 | 2885878115 | 0 |
| 172.3.1.100 | 2885878116 | 0 |
| 172.3.1.101 | 2885878117 | 0 |
| 172.3.1.102 | 2885878118 | 0 |
| 172.3.1.103 | 2885878119 | 0 |
| 172.3.1.104 | 2885878120 | 0 |
| 172.3.1.105 | 2885878121 | 0 |
| 172.3.1.106 | 2885878122 | 0 |
| 172.3.1.107 | 2885878123 | 0 |
| 172.3.1.108 | 2885878124 | 0 |
| 172.3.1.109 | 2885878125 | 0 |
| 172.3.1.110 | 2885878126 | 0 |
| 172.3.1.111 | 2885878127 | 0 |
| 172.3.1.112 | 2885878128 | 0 |
| 172.3.1.113 | 2885878129 | 0 |
| 172.3.1.114 | 2885878130 | 0 |
| 172.3.1.115 | 2885878131 | 0 |
| 172.3.1.116 | 2885878132 | 0 |
| 172.3.1.117 | 2885878133 | 0 |
| 172.3.1.118 | 2885878134 | 0 |
| 172.3.1.119 | 2885878135 | 0 |
| 172.3.1.120 | 2885878136 | 0 |
| 172.3.1.121 | 2885878137 | 0 |
| 172.3.1.122 | 2885878138 | 0 |
| 172.3.1.123 | 2885878139 | 0 |
| 172.3.1.124 | 2885878140 | 0 |
| 172.3.1.125 | 2885878141 | 0 |
| 172.3.1.126 | 2885878142 | 0 |
| 172.3.1.127 | 2885878143 | 0 |
| 172.3.1.128 | 2885878144 | 0 |
| 172.3.1.129 | 2885878145 | 0 |
| 172.3.1.130 | 2885878146 | 0 |
| 172.3.1.131 | 2885878147 | 0 |
| 172.3.1.132 | 2885878148 | 0 |
| 172.3.1.133 | 2885878149 | 0 |
| 172.3.1.134 | 2885878150 | 0 |
| 172.3.1.135 | 2885878151 | 0 |
| 172.3.1.136 | 2885878152 | 0 |
| 172.3.1.137 | 2885878153 | 0 |
| 172.3.1.138 | 2885878154 | 0 |
| 172.3.1.139 | 2885878155 | 0 |
| 172.3.1.140 | 2885878156 | 0 |
| 172.3.1.141 | 2885878157 | 0 |
| 172.3.1.142 | 2885878158 | 0 |
| 172.3.1.143 | 2885878159 | 0 |
| 172.3.1.144 | 2885878160 | 0 |
| 172.3.1.145 | 2885878161 | 0 |
| 172.3.1.146 | 2885878162 | 0 |
| 172.3.1.147 | 2885878163 | 0 |
| 172.3.1.148 | 2885878164 | 0 |
| 172.3.1.149 | 2885878165 | 0 |
| 172.3.1.150 | 2885878166 | 0 |
| 172.3.1.151 | 2885878167 | 0 |
| 172.3.1.152 | 2885878168 | 0 |
| 172.3.1.153 | 2885878169 | 0 |
| 172.3.1.154 | 2885878170 | 0 |
| 172.3.1.155 | 2885878171 | 0 |
| 172.3.1.156 | 2885878172 | 0 |
| 172.3.1.157 | 2885878173 | 0 |
| 172.3.1.158 | 2885878174 | 0 |
| 172.3.1.159 | 2885878175 | 0 |
| 172.3.1.160 | 2885878176 | 0 |
| 172.3.1.161 | 2885878177 | 0 |
| 172.3.1.162 | 2885878178 | 0 |
| 172.3.1.163 | 2885878179 | 0 |
| 172.3.1.164 | 2885878180 | 0 |
| 172.3.1.165 | 2885878181 | 0 |
| 172.3.1.166 | 2885878182 | 0 |
| 172.3.1.167 | 2885878183 | 0 |
| 172.3.1.168 | 2885878184 | 0 |
| 172.3.1.169 | 2885878185 | 0 |
| 172.3.1.170 | 2885878186 | 0 |
| 172.3.1.171 | 2885878187 | 0 |
| IP | Numerical IP | DNS |
| 172.3.1.172 | 2885878188 | 0 |
| 172.3.1.173 | 2885878189 | 0 |
| 172.3.1.174 | 2885878190 | 0 |
| 172.3.1.175 | 2885878191 | 0 |
| 172.3.1.176 | 2885878192 | 0 |
| 172.3.1.177 | 2885878193 | 0 |
| 172.3.1.178 | 2885878194 | 0 |
| 172.3.1.179 | 2885878195 | 0 |
| 172.3.1.180 | 2885878196 | 0 |
| 172.3.1.181 | 2885878197 | 0 |
| 172.3.1.182 | 2885878198 | 0 |
| 172.3.1.183 | 2885878199 | 0 |
| 172.3.1.184 | 2885878200 | 0 |
| 172.3.1.185 | 2885878201 | 0 |
| 172.3.1.186 | 2885878202 | 0 |
| 172.3.1.187 | 2885878203 | 0 |
| 172.3.1.188 | 2885878204 | 0 |
| 172.3.1.189 | 2885878205 | 0 |
| 172.3.1.190 | 2885878206 | 0 |
| 172.3.1.191 | 2885878207 | 0 |
| 172.3.1.192 | 2885878208 | 0 |
| 172.3.1.193 | 2885878209 | 0 |
| 172.3.1.194 | 2885878210 | 0 |
| 172.3.1.195 | 2885878211 | 0 |
| 172.3.1.196 | 2885878212 | 0 |
| 172.3.1.197 | 2885878213 | 0 |
| 172.3.1.198 | 2885878214 | 0 |
| 172.3.1.199 | 2885878215 | 0 |
| 172.3.1.200 | 2885878216 | 0 |
| 172.3.1.201 | 2885878217 | 0 |
| 172.3.1.202 | 2885878218 | 0 |
| 172.3.1.203 | 2885878219 | 0 |
| 172.3.1.204 | 2885878220 | 0 |
| 172.3.1.205 | 2885878221 | 0 |
| 172.3.1.206 | 2885878222 | 0 |
| 172.3.1.207 | 2885878223 | 0 |
| 172.3.1.208 | 2885878224 | 0 |
| 172.3.1.209 | 2885878225 | 0 |
| 172.3.1.210 | 2885878226 | 0 |
| 172.3.1.211 | 2885878227 | 0 |
| 172.3.1.212 | 2885878228 | 0 |
| 172.3.1.213 | 2885878229 | 0 |
| 172.3.1.214 | 2885878230 | 0 |
| 172.3.1.215 | 2885878231 | 0 |
| 172.3.1.216 | 2885878232 | 0 |
| 172.3.1.217 | 2885878233 | 0 |
| 172.3.1.218 | 2885878234 | 0 |
| 172.3.1.219 | 2885878235 | 0 |
| 172.3.1.220 | 2885878236 | 0 |
| 172.3.1.221 | 2885878237 | 0 |
| 172.3.1.222 | 2885878238 | 0 |
| 172.3.1.223 | 2885878239 | 0 |
| 172.3.1.224 | 2885878240 | 0 |
| 172.3.1.225 | 2885878241 | 0 |
| 172.3.1.226 | 2885878242 | 0 |
| 172.3.1.227 | 2885878243 | 0 |
| 172.3.1.228 | 2885878244 | 0 |
| 172.3.1.229 | 2885878245 | 0 |
| 172.3.1.230 | 2885878246 | 0 |
| 172.3.1.231 | 2885878247 | 0 |
| 172.3.1.232 | 2885878248 | 0 |
| 172.3.1.233 | 2885878249 | 0 |
| 172.3.1.234 | 2885878250 | 0 |
| 172.3.1.235 | 2885878251 | 0 |
| 172.3.1.236 | 2885878252 | 0 |
| 172.3.1.237 | 2885878253 | 0 |
| 172.3.1.238 | 2885878254 | 0 |
| 172.3.1.239 | 2885878255 | 0 |
| 172.3.1.240 | 2885878256 | 0 |
| 172.3.1.241 | 2885878257 | 0 |
| 172.3.1.242 | 2885878258 | 0 |
| 172.3.1.243 | 2885878259 | 0 |
| 172.3.1.244 | 2885878260 | 0 |
| 172.3.1.245 | 2885878261 | 0 |
| 172.3.1.246 | 2885878262 | 0 |
| 172.3.1.247 | 2885878263 | 0 |
| 172.3.1.248 | 2885878264 | 0 |
| 172.3.1.249 | 2885878265 | 0 |
| 172.3.1.250 | 2885878266 | 0 |
| 172.3.1.251 | 2885878267 | 0 |
| 172.3.1.252 | 2885878268 | 0 |
| 172.3.1.253 | 2885878269 | 0 |
| 172.3.1.254 | 2885878270 | 0 |
| 172.3.1.255 | 2885878271 | 0 |