The IP address 18.91.45 is provided by Massachusetts Institute of Technology, it's belong to the CDIR (Classless Inter-Domain Routing) 18.0.0.0/8 (range 18.0.0.0 to 18.255.255.255). The autonomous system number (ASN) is 3.
| ASN | 3 |
| IP starting by | 18.0.0.0 |
| IP ending by | 18.255.255.255 |
| ASN Name | Massachusetts Institute of Technology |
| CDIR | 18.0.0.0/8 |
| Numerical IP | |
| Registry | arin |
| Last update | 20/08/2017 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Cambridge | 42.3651 | -71.1045 | 2017-08-20 |
| MaxMind | US | United States | - | Cambridge | 42.3646 | -71.1028 | 2017-08-20 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 18.91.45.0 | 307965184 | 0 |
| 18.91.45.1 | 307965185 | 0 |
| 18.91.45.2 | 307965186 | 0 |
| 18.91.45.3 | 307965187 | 0 |
| 18.91.45.4 | 307965188 | 0 |
| 18.91.45.5 | 307965189 | 0 |
| 18.91.45.6 | 307965190 | 0 |
| 18.91.45.7 | 307965191 | 0 |
| 18.91.45.8 | 307965192 | 0 |
| 18.91.45.9 | 307965193 | 0 |
| 18.91.45.10 | 307965194 | 0 |
| 18.91.45.11 | 307965195 | 0 |
| 18.91.45.12 | 307965196 | 0 |
| 18.91.45.13 | 307965197 | 0 |
| 18.91.45.14 | 307965198 | 0 |
| 18.91.45.15 | 307965199 | 0 |
| 18.91.45.16 | 307965200 | 0 |
| 18.91.45.17 | 307965201 | 0 |
| 18.91.45.18 | 307965202 | 0 |
| 18.91.45.19 | 307965203 | 0 |
| 18.91.45.20 | 307965204 | 0 |
| 18.91.45.21 | 307965205 | 0 |
| 18.91.45.22 | 307965206 | 0 |
| 18.91.45.23 | 307965207 | 0 |
| 18.91.45.24 | 307965208 | 0 |
| 18.91.45.25 | 307965209 | 0 |
| 18.91.45.26 | 307965210 | 0 |
| 18.91.45.27 | 307965211 | 0 |
| 18.91.45.28 | 307965212 | 0 |
| 18.91.45.29 | 307965213 | 0 |
| 18.91.45.30 | 307965214 | 0 |
| 18.91.45.31 | 307965215 | 0 |
| 18.91.45.32 | 307965216 | 0 |
| 18.91.45.33 | 307965217 | 0 |
| 18.91.45.34 | 307965218 | 0 |
| 18.91.45.35 | 307965219 | 0 |
| 18.91.45.36 | 307965220 | 0 |
| 18.91.45.37 | 307965221 | 0 |
| 18.91.45.38 | 307965222 | 0 |
| 18.91.45.39 | 307965223 | 0 |
| 18.91.45.40 | 307965224 | 0 |
| 18.91.45.41 | 307965225 | 0 |
| 18.91.45.42 | 307965226 | 0 |
| 18.91.45.43 | 307965227 | 0 |
| 18.91.45.44 | 307965228 | 0 |
| 18.91.45.45 | 307965229 | 0 |
| 18.91.45.46 | 307965230 | 0 |
| 18.91.45.47 | 307965231 | 0 |
| 18.91.45.48 | 307965232 | 0 |
| 18.91.45.49 | 307965233 | 0 |
| 18.91.45.50 | 307965234 | 0 |
| 18.91.45.51 | 307965235 | 0 |
| 18.91.45.52 | 307965236 | 0 |
| 18.91.45.53 | 307965237 | 0 |
| 18.91.45.54 | 307965238 | 0 |
| 18.91.45.55 | 307965239 | 0 |
| 18.91.45.56 | 307965240 | 0 |
| 18.91.45.57 | 307965241 | 0 |
| 18.91.45.58 | 307965242 | 0 |
| 18.91.45.59 | 307965243 | 0 |
| 18.91.45.60 | 307965244 | 0 |
| 18.91.45.61 | 307965245 | 0 |
| 18.91.45.62 | 307965246 | 0 |
| 18.91.45.63 | 307965247 | 0 |
| 18.91.45.64 | 307965248 | 0 |
| 18.91.45.65 | 307965249 | 0 |
| 18.91.45.66 | 307965250 | 0 |
| 18.91.45.67 | 307965251 | 0 |
| 18.91.45.68 | 307965252 | 0 |
| 18.91.45.69 | 307965253 | 0 |
| 18.91.45.70 | 307965254 | 0 |
| 18.91.45.71 | 307965255 | 0 |
| 18.91.45.72 | 307965256 | 0 |
| 18.91.45.73 | 307965257 | 0 |
| 18.91.45.74 | 307965258 | 0 |
| 18.91.45.75 | 307965259 | 0 |
| 18.91.45.76 | 307965260 | 0 |
| 18.91.45.77 | 307965261 | 0 |
| 18.91.45.78 | 307965262 | 0 |
| 18.91.45.79 | 307965263 | 0 |
| 18.91.45.80 | 307965264 | 0 |
| 18.91.45.81 | 307965265 | 0 |
| 18.91.45.82 | 307965266 | 0 |
| 18.91.45.83 | 307965267 | 0 |
| 18.91.45.84 | 307965268 | 0 |
| 18.91.45.85 | 307965269 | 0 |