Die IP-Adresse 89.103.21 erfolgt über formerly known as UPC Broadband Holding B.V., es hat gehören zu den GGDV (Classless Inter-Domain Routing) 89.102.0.0/15 (Bereich 89.102.0.0, 89.103.255.255). Die autonomen Systemnummer (ASN) ist 6830.
| ASN | 6830 |
| Ausgehend von IP | 89.102.0.0 |
| Beendigung durch IP | 89.103.255.255 |
| ASN-Namen | formerly known as UPC Broadband Holding B.V. |
| GGDV | 89.102.0.0/15 |
| Numerische IP | |
| Registrierung | ripencc |
| Letztes update | 08.07.2017 |

| Vorwahl des Landes | Land | Region | Stadt | Breitengrad | Länge | Letztes update | |
| IP2Location | CZ | Tschechische Republik | - | Prague | 50,088 | 14,4208 | 2017-07-08 |
| MaxMind | CZ | Tschechische Republik | - | Zitenice | 50,556 | 14,1598 | 2017-07-08 |
| Whois | CZ | - | - | - | 15 | 50 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 89.103.21.0 | 1499927808 | 0 |
| 89.103.21.1 | 1499927809 | 0 |
| 89.103.21.2 | 1499927810 | 0 |
| 89.103.21.3 | 1499927811 | 0 |
| 89.103.21.4 | 1499927812 | 0 |
| 89.103.21.5 | 1499927813 | 0 |
| 89.103.21.6 | 1499927814 | 0 |
| 89.103.21.7 | 1499927815 | 0 |
| 89.103.21.8 | 1499927816 | 0 |
| 89.103.21.9 | 1499927817 | 0 |
| 89.103.21.10 | 1499927818 | 0 |
| 89.103.21.11 | 1499927819 | 0 |
| 89.103.21.12 | 1499927820 | 0 |
| 89.103.21.13 | 1499927821 | 0 |
| 89.103.21.14 | 1499927822 | 0 |
| 89.103.21.15 | 1499927823 | 0 |
| 89.103.21.16 | 1499927824 | 0 |
| 89.103.21.17 | 1499927825 | 0 |
| 89.103.21.18 | 1499927826 | 0 |
| 89.103.21.19 | 1499927827 | 0 |
| 89.103.21.20 | 1499927828 | 0 |
| 89.103.21.21 | 1499927829 | 0 |
| 89.103.21.22 | 1499927830 | 0 |
| 89.103.21.23 | 1499927831 | 0 |
| 89.103.21.24 | 1499927832 | 0 |
| 89.103.21.25 | 1499927833 | 0 |
| 89.103.21.26 | 1499927834 | 0 |
| 89.103.21.27 | 1499927835 | 0 |
| 89.103.21.28 | 1499927836 | 0 |
| 89.103.21.29 | 1499927837 | 0 |
| 89.103.21.30 | 1499927838 | 0 |
| 89.103.21.31 | 1499927839 | 0 |
| 89.103.21.32 | 1499927840 | 0 |
| 89.103.21.33 | 1499927841 | 0 |
| 89.103.21.34 | 1499927842 | 0 |
| 89.103.21.35 | 1499927843 | 0 |
| 89.103.21.36 | 1499927844 | 0 |
| 89.103.21.37 | 1499927845 | 0 |
| 89.103.21.38 | 1499927846 | 0 |
| 89.103.21.39 | 1499927847 | 0 |
| 89.103.21.40 | 1499927848 | 0 |
| 89.103.21.41 | 1499927849 | 0 |
| 89.103.21.42 | 1499927850 | 0 |
| 89.103.21.43 | 1499927851 | 0 |
| 89.103.21.44 | 1499927852 | 0 |
| 89.103.21.45 | 1499927853 | 0 |
| 89.103.21.46 | 1499927854 | 0 |
| 89.103.21.47 | 1499927855 | 0 |
| 89.103.21.48 | 1499927856 | 0 |
| 89.103.21.49 | 1499927857 | 0 |
| 89.103.21.50 | 1499927858 | 0 |
| 89.103.21.51 | 1499927859 | 0 |
| 89.103.21.52 | 1499927860 | 0 |
| 89.103.21.53 | 1499927861 | 0 |
| 89.103.21.54 | 1499927862 | 0 |
| 89.103.21.55 | 1499927863 | 0 |
| 89.103.21.56 | 1499927864 | 0 |
| 89.103.21.57 | 1499927865 | 0 |
| 89.103.21.58 | 1499927866 | 0 |
| 89.103.21.59 | 1499927867 | 0 |
| 89.103.21.60 | 1499927868 | 0 |
| 89.103.21.61 | 1499927869 | 0 |
| 89.103.21.62 | 1499927870 | 0 |
| 89.103.21.63 | 1499927871 | 0 |
| 89.103.21.64 | 1499927872 | 0 |
| 89.103.21.65 | 1499927873 | 0 |
| 89.103.21.66 | 1499927874 | 0 |
| 89.103.21.67 | 1499927875 | 0 |
| 89.103.21.68 | 1499927876 | 0 |
| 89.103.21.69 | 1499927877 | 0 |
| 89.103.21.70 | 1499927878 | 0 |
| 89.103.21.71 | 1499927879 | 0 |
| 89.103.21.72 | 1499927880 | 0 |
| 89.103.21.73 | 1499927881 | 0 |
| 89.103.21.74 | 1499927882 | 0 |
| 89.103.21.75 | 1499927883 | 0 |
| 89.103.21.76 | 1499927884 | 0 |
| 89.103.21.77 | 1499927885 | 0 |
| 89.103.21.78 | 1499927886 | 0 |
| 89.103.21.79 | 1499927887 | 0 |
| 89.103.21.80 | 1499927888 | 0 |
| 89.103.21.81 | 1499927889 | 0 |
| 89.103.21.82 | 1499927890 | 0 |
| 89.103.21.83 | 1499927891 | 0 |
| 89.103.21.84 | 1499927892 | 0 |
| 89.103.21.85 | 1499927893 | 0 |