L'indirizzo IP 2.81.72 è fornito da , che è di proprietà del CIDR (Classless Inter-Domain Routing) 2.80.0.0/14, IP tra 2.80.0.0 a 2.83.255.255 ). Il numero di sistema autonomo (ASN) è 3243.
| ASN | 3243 |
| IP inizia con | 2.80.0.0 |
| IP finale con | 2.83.255.255 |
| ASN Nome | |
| CDIR | 2.80.0.0/14 |
| IP numerico | |
| Registe | ripencc |
| Ultimo aggiornamento | 04/08/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | PT | Portugal | - | Mealhada | 40,3781 | -8,4499 | 2017-07-03 |
| MaxMind | PT | Portugal | - | Cantanhede | 40,3467 | -8,5942 | 2017-07-03 |
| Whois | PT | - | - | - | -8 | 39 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 2.81.72.0 | 38881280 | 0 |
| 2.81.72.1 | 38881281 | 0 |
| 2.81.72.2 | 38881282 | 0 |
| 2.81.72.3 | 38881283 | 0 |
| 2.81.72.4 | 38881284 | 0 |
| 2.81.72.5 | 38881285 | 0 |
| 2.81.72.6 | 38881286 | 0 |
| 2.81.72.7 | 38881287 | 0 |
| 2.81.72.8 | 38881288 | 0 |
| 2.81.72.9 | 38881289 | 0 |
| 2.81.72.10 | 38881290 | 0 |
| 2.81.72.11 | 38881291 | 0 |
| 2.81.72.12 | 38881292 | 0 |
| 2.81.72.13 | 38881293 | 0 |
| 2.81.72.14 | 38881294 | 0 |
| 2.81.72.15 | 38881295 | 0 |
| 2.81.72.16 | 38881296 | 0 |
| 2.81.72.17 | 38881297 | 0 |
| 2.81.72.18 | 38881298 | 0 |
| 2.81.72.19 | 38881299 | 0 |
| 2.81.72.20 | 38881300 | 0 |
| 2.81.72.21 | 38881301 | 0 |
| 2.81.72.22 | 38881302 | 0 |
| 2.81.72.23 | 38881303 | 0 |
| 2.81.72.24 | 38881304 | 0 |
| 2.81.72.25 | 38881305 | 0 |
| 2.81.72.26 | 38881306 | 0 |
| 2.81.72.27 | 38881307 | 0 |
| 2.81.72.28 | 38881308 | 0 |
| 2.81.72.29 | 38881309 | 0 |
| 2.81.72.30 | 38881310 | 0 |
| 2.81.72.31 | 38881311 | 0 |
| 2.81.72.32 | 38881312 | 0 |
| 2.81.72.33 | 38881313 | 0 |
| 2.81.72.34 | 38881314 | 0 |
| 2.81.72.35 | 38881315 | 0 |
| 2.81.72.36 | 38881316 | 0 |
| 2.81.72.37 | 38881317 | 0 |
| 2.81.72.38 | 38881318 | 0 |
| 2.81.72.39 | 38881319 | 0 |
| 2.81.72.40 | 38881320 | 0 |
| 2.81.72.41 | 38881321 | 0 |
| 2.81.72.42 | 38881322 | 0 |
| 2.81.72.43 | 38881323 | 0 |
| 2.81.72.44 | 38881324 | 0 |
| 2.81.72.45 | 38881325 | 0 |
| 2.81.72.46 | 38881326 | 0 |
| 2.81.72.47 | 38881327 | 0 |
| 2.81.72.48 | 38881328 | 0 |
| 2.81.72.49 | 38881329 | 0 |
| 2.81.72.50 | 38881330 | 0 |
| 2.81.72.51 | 38881331 | 0 |
| 2.81.72.52 | 38881332 | 0 |
| 2.81.72.53 | 38881333 | 0 |
| 2.81.72.54 | 38881334 | 0 |
| 2.81.72.55 | 38881335 | 0 |
| 2.81.72.56 | 38881336 | 0 |
| 2.81.72.57 | 38881337 | 0 |
| 2.81.72.58 | 38881338 | 0 |
| 2.81.72.59 | 38881339 | 0 |
| 2.81.72.60 | 38881340 | 0 |
| 2.81.72.61 | 38881341 | 0 |
| 2.81.72.62 | 38881342 | 0 |
| 2.81.72.63 | 38881343 | 0 |
| 2.81.72.64 | 38881344 | 0 |
| 2.81.72.65 | 38881345 | 0 |
| 2.81.72.66 | 38881346 | 0 |
| 2.81.72.67 | 38881347 | 0 |
| 2.81.72.68 | 38881348 | 0 |
| 2.81.72.69 | 38881349 | 0 |
| 2.81.72.70 | 38881350 | 0 |
| 2.81.72.71 | 38881351 | 0 |
| 2.81.72.72 | 38881352 | 0 |
| 2.81.72.73 | 38881353 | 0 |
| 2.81.72.74 | 38881354 | 0 |
| 2.81.72.75 | 38881355 | 0 |
| 2.81.72.76 | 38881356 | 0 |
| 2.81.72.77 | 38881357 | 0 |
| 2.81.72.78 | 38881358 | 0 |
| 2.81.72.79 | 38881359 | 0 |
| 2.81.72.80 | 38881360 | 0 |
| 2.81.72.81 | 38881361 | 0 |
| 2.81.72.82 | 38881362 | 0 |
| 2.81.72.83 | 38881363 | 0 |
| 2.81.72.84 | 38881364 | 0 |
| 2.81.72.85 | 38881365 | 0 |