Les adresses IP débutant par 16.221.4 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 | 30/08/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | US | États-Unis | - | Palo Alto | 37,4099 | -122,1604 | 2017-08-30 |
| MaxMind | US | États-Unis | - | Palo Alto | 37,3762 | -122,1826 | 2017-08-30 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 16.221.4.0 | 282919936 | 0 |
| 16.221.4.1 | 282919937 | 0 |
| 16.221.4.2 | 282919938 | 0 |
| 16.221.4.3 | 282919939 | 0 |
| 16.221.4.4 | 282919940 | 0 |
| 16.221.4.5 | 282919941 | 0 |
| 16.221.4.6 | 282919942 | 0 |
| 16.221.4.7 | 282919943 | 0 |
| 16.221.4.8 | 282919944 | 0 |
| 16.221.4.9 | 282919945 | 0 |
| 16.221.4.10 | 282919946 | 0 |
| 16.221.4.11 | 282919947 | 0 |
| 16.221.4.12 | 282919948 | 0 |
| 16.221.4.13 | 282919949 | 0 |
| 16.221.4.14 | 282919950 | 0 |
| 16.221.4.15 | 282919951 | 0 |
| 16.221.4.16 | 282919952 | 0 |
| 16.221.4.17 | 282919953 | 0 |
| 16.221.4.18 | 282919954 | 0 |
| 16.221.4.19 | 282919955 | 0 |
| 16.221.4.20 | 282919956 | 0 |
| 16.221.4.21 | 282919957 | 0 |
| 16.221.4.22 | 282919958 | 0 |
| 16.221.4.23 | 282919959 | 0 |
| 16.221.4.24 | 282919960 | 0 |
| 16.221.4.25 | 282919961 | 0 |
| 16.221.4.26 | 282919962 | 0 |
| 16.221.4.27 | 282919963 | 0 |
| 16.221.4.28 | 282919964 | 0 |
| 16.221.4.29 | 282919965 | 0 |
| 16.221.4.30 | 282919966 | 0 |
| 16.221.4.31 | 282919967 | 0 |
| 16.221.4.32 | 282919968 | 0 |
| 16.221.4.33 | 282919969 | 0 |
| 16.221.4.34 | 282919970 | 0 |
| 16.221.4.35 | 282919971 | 0 |
| 16.221.4.36 | 282919972 | 0 |
| 16.221.4.37 | 282919973 | 0 |
| 16.221.4.38 | 282919974 | 0 |
| 16.221.4.39 | 282919975 | 0 |
| 16.221.4.40 | 282919976 | 0 |
| 16.221.4.41 | 282919977 | 0 |
| 16.221.4.42 | 282919978 | 0 |
| 16.221.4.43 | 282919979 | 0 |
| 16.221.4.44 | 282919980 | 0 |
| 16.221.4.45 | 282919981 | 0 |
| 16.221.4.46 | 282919982 | 0 |
| 16.221.4.47 | 282919983 | 0 |
| 16.221.4.48 | 282919984 | 0 |
| 16.221.4.49 | 282919985 | 0 |
| 16.221.4.50 | 282919986 | 0 |
| 16.221.4.51 | 282919987 | 0 |
| 16.221.4.52 | 282919988 | 0 |
| 16.221.4.53 | 282919989 | 0 |
| 16.221.4.54 | 282919990 | 0 |
| 16.221.4.55 | 282919991 | 0 |
| 16.221.4.56 | 282919992 | 0 |
| 16.221.4.57 | 282919993 | 0 |
| 16.221.4.58 | 282919994 | 0 |
| 16.221.4.59 | 282919995 | 0 |
| 16.221.4.60 | 282919996 | 0 |
| 16.221.4.61 | 282919997 | 0 |
| 16.221.4.62 | 282919998 | 0 |
| 16.221.4.63 | 282919999 | 0 |
| 16.221.4.64 | 282920000 | 0 |
| 16.221.4.65 | 282920001 | 0 |
| 16.221.4.66 | 282920002 | 0 |
| 16.221.4.67 | 282920003 | 0 |
| 16.221.4.68 | 282920004 | 0 |
| 16.221.4.69 | 282920005 | 0 |
| 16.221.4.70 | 282920006 | 0 |
| 16.221.4.71 | 282920007 | 0 |
| 16.221.4.72 | 282920008 | 0 |
| 16.221.4.73 | 282920009 | 0 |
| 16.221.4.74 | 282920010 | 0 |
| 16.221.4.75 | 282920011 | 0 |
| 16.221.4.76 | 282920012 | 0 |
| 16.221.4.77 | 282920013 | 0 |
| 16.221.4.78 | 282920014 | 0 |
| 16.221.4.79 | 282920015 | 0 |
| 16.221.4.80 | 282920016 | 0 |
| 16.221.4.81 | 282920017 | 0 |
| 16.221.4.82 | 282920018 | 0 |
| 16.221.4.83 | 282920019 | 0 |
| 16.221.4.84 | 282920020 | 0 |
| 16.221.4.85 | 282920021 | 0 |