Les adresses IP débutant par 16.81.66 sont fournies par Hewlett-Packard Company, elles appartiennent au CIDR (Classless Inter-Domain Routing) 16.0.0.0/8, le bloc IP comprant les adresses de 16.0.0.0 à 16.255.255.255). Le numéro de système autonome (ASN) est 71.
| ASN | 71 |
| IP commençant par | 16.0.0.0 |
| IP se terminant par | 16.255.255.255 |
| Nom ASN | Hewlett-Packard Company |
| CDIR | 16.0.0.0/8 |
| IP numérique | |
| Registe | arin |
| Dernière mise à jour | 15/08/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | US | États-Unis | - | Palo Alto | 37,4099 | -122,1604 | 2017-08-15 |
| MaxMind | US | États-Unis | - | Palo Alto | 37,3762 | -122,1826 | 2017-08-15 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 16.81.66.0 | 273760768 | 0 |
| 16.81.66.1 | 273760769 | 0 |
| 16.81.66.2 | 273760770 | 0 |
| 16.81.66.3 | 273760771 | 0 |
| 16.81.66.4 | 273760772 | 0 |
| 16.81.66.5 | 273760773 | 0 |
| 16.81.66.6 | 273760774 | 0 |
| 16.81.66.7 | 273760775 | 0 |
| 16.81.66.8 | 273760776 | 0 |
| 16.81.66.9 | 273760777 | 0 |
| 16.81.66.10 | 273760778 | 0 |
| 16.81.66.11 | 273760779 | 0 |
| 16.81.66.12 | 273760780 | 0 |
| 16.81.66.13 | 273760781 | 0 |
| 16.81.66.14 | 273760782 | 0 |
| 16.81.66.15 | 273760783 | 0 |
| 16.81.66.16 | 273760784 | 0 |
| 16.81.66.17 | 273760785 | 0 |
| 16.81.66.18 | 273760786 | 0 |
| 16.81.66.19 | 273760787 | 0 |
| 16.81.66.20 | 273760788 | 0 |
| 16.81.66.21 | 273760789 | 0 |
| 16.81.66.22 | 273760790 | 0 |
| 16.81.66.23 | 273760791 | 0 |
| 16.81.66.24 | 273760792 | 0 |
| 16.81.66.25 | 273760793 | 0 |
| 16.81.66.26 | 273760794 | 0 |
| 16.81.66.27 | 273760795 | 0 |
| 16.81.66.28 | 273760796 | 0 |
| 16.81.66.29 | 273760797 | 0 |
| 16.81.66.30 | 273760798 | 0 |
| 16.81.66.31 | 273760799 | 0 |
| 16.81.66.32 | 273760800 | 0 |
| 16.81.66.33 | 273760801 | 0 |
| 16.81.66.34 | 273760802 | 0 |
| 16.81.66.35 | 273760803 | 0 |
| 16.81.66.36 | 273760804 | 0 |
| 16.81.66.37 | 273760805 | 0 |
| 16.81.66.38 | 273760806 | 0 |
| 16.81.66.39 | 273760807 | 0 |
| 16.81.66.40 | 273760808 | 0 |
| 16.81.66.41 | 273760809 | 0 |
| 16.81.66.42 | 273760810 | 0 |
| 16.81.66.43 | 273760811 | 0 |
| 16.81.66.44 | 273760812 | 0 |
| 16.81.66.45 | 273760813 | 0 |
| 16.81.66.46 | 273760814 | 0 |
| 16.81.66.47 | 273760815 | 0 |
| 16.81.66.48 | 273760816 | 0 |
| 16.81.66.49 | 273760817 | 0 |
| 16.81.66.50 | 273760818 | 0 |
| 16.81.66.51 | 273760819 | 0 |
| 16.81.66.52 | 273760820 | 0 |
| 16.81.66.53 | 273760821 | 0 |
| 16.81.66.54 | 273760822 | 0 |
| 16.81.66.55 | 273760823 | 0 |
| 16.81.66.56 | 273760824 | 0 |
| 16.81.66.57 | 273760825 | 0 |
| 16.81.66.58 | 273760826 | 0 |
| 16.81.66.59 | 273760827 | 0 |
| 16.81.66.60 | 273760828 | 0 |
| 16.81.66.61 | 273760829 | 0 |
| 16.81.66.62 | 273760830 | 0 |
| 16.81.66.63 | 273760831 | 0 |
| 16.81.66.64 | 273760832 | 0 |
| 16.81.66.65 | 273760833 | 0 |
| 16.81.66.66 | 273760834 | 0 |
| 16.81.66.67 | 273760835 | 0 |
| 16.81.66.68 | 273760836 | 0 |
| 16.81.66.69 | 273760837 | 0 |
| 16.81.66.70 | 273760838 | 0 |
| 16.81.66.71 | 273760839 | 0 |
| 16.81.66.72 | 273760840 | 0 |
| 16.81.66.73 | 273760841 | 0 |
| 16.81.66.74 | 273760842 | 0 |
| 16.81.66.75 | 273760843 | 0 |
| 16.81.66.76 | 273760844 | 0 |
| 16.81.66.77 | 273760845 | 0 |
| 16.81.66.78 | 273760846 | 0 |
| 16.81.66.79 | 273760847 | 0 |
| 16.81.66.80 | 273760848 | 0 |
| 16.81.66.81 | 273760849 | 0 |
| 16.81.66.82 | 273760850 | 0 |
| 16.81.66.83 | 273760851 | 0 |
| 16.81.66.84 | 273760852 | 0 |
| 16.81.66.85 | 273760853 | 0 |