L'indirizzo IP 167.77.21 è fornito da Duquesne Light Company, che è di proprietà del CIDR (Classless Inter-Domain Routing) 167.77.0.0/19, IP tra 167.77.0.0 a 167.77.31.255 ). Il numero di sistema autonomo (ASN) è 16821.
| ASN | 16821 |
| IP inizia con | 167.77.0.0 |
| IP finale con | 167.77.31.255 |
| ASN Nome | Duquesne Light Company |
| CDIR | 167.77.0.0/19 |
| IP numerico | |
| Registe | arin |
| Ultimo aggiornamento | 11/11/2018 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | US | United States | - | Tallahassee | 30,429 | -84,2588 | 2018-11-10 |
| MaxMind | US | United States | - | Pittsburgh | 40,4623 | -80,031 | 2018-11-10 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 167.77.21.0 | 2806846720 | 0 |
| 167.77.21.1 | 2806846721 | 0 |
| 167.77.21.2 | 2806846722 | 0 |
| 167.77.21.3 | 2806846723 | 0 |
| 167.77.21.4 | 2806846724 | 0 |
| 167.77.21.5 | 2806846725 | 0 |
| 167.77.21.6 | 2806846726 | 0 |
| 167.77.21.7 | 2806846727 | 0 |
| 167.77.21.8 | 2806846728 | 0 |
| 167.77.21.9 | 2806846729 | 0 |
| 167.77.21.10 | 2806846730 | 0 |
| 167.77.21.11 | 2806846731 | 0 |
| 167.77.21.12 | 2806846732 | 0 |
| 167.77.21.13 | 2806846733 | 0 |
| 167.77.21.14 | 2806846734 | 0 |
| 167.77.21.15 | 2806846735 | 0 |
| 167.77.21.16 | 2806846736 | 0 |
| 167.77.21.17 | 2806846737 | 0 |
| 167.77.21.18 | 2806846738 | 0 |
| 167.77.21.19 | 2806846739 | 0 |
| 167.77.21.20 | 2806846740 | 0 |
| 167.77.21.21 | 2806846741 | 0 |
| 167.77.21.22 | 2806846742 | 0 |
| 167.77.21.23 | 2806846743 | 0 |
| 167.77.21.24 | 2806846744 | 0 |
| 167.77.21.25 | 2806846745 | 0 |
| 167.77.21.26 | 2806846746 | 0 |
| 167.77.21.27 | 2806846747 | 0 |
| 167.77.21.28 | 2806846748 | 0 |
| 167.77.21.29 | 2806846749 | 0 |
| 167.77.21.30 | 2806846750 | 0 |
| 167.77.21.31 | 2806846751 | 0 |
| 167.77.21.32 | 2806846752 | 0 |
| 167.77.21.33 | 2806846753 | 0 |
| 167.77.21.34 | 2806846754 | 0 |
| 167.77.21.35 | 2806846755 | 0 |
| 167.77.21.36 | 2806846756 | 0 |
| 167.77.21.37 | 2806846757 | 0 |
| 167.77.21.38 | 2806846758 | 0 |
| 167.77.21.39 | 2806846759 | 0 |
| 167.77.21.40 | 2806846760 | 0 |
| 167.77.21.41 | 2806846761 | 0 |
| 167.77.21.42 | 2806846762 | 0 |
| 167.77.21.43 | 2806846763 | 0 |
| 167.77.21.44 | 2806846764 | 0 |
| 167.77.21.45 | 2806846765 | 0 |
| 167.77.21.46 | 2806846766 | 0 |
| 167.77.21.47 | 2806846767 | 0 |
| 167.77.21.48 | 2806846768 | 0 |
| 167.77.21.49 | 2806846769 | 0 |
| 167.77.21.50 | 2806846770 | 0 |
| 167.77.21.51 | 2806846771 | 0 |
| 167.77.21.52 | 2806846772 | 0 |
| 167.77.21.53 | 2806846773 | 0 |
| 167.77.21.54 | 2806846774 | 0 |
| 167.77.21.55 | 2806846775 | 0 |
| 167.77.21.56 | 2806846776 | 0 |
| 167.77.21.57 | 2806846777 | 0 |
| 167.77.21.58 | 2806846778 | 0 |
| 167.77.21.59 | 2806846779 | 0 |
| 167.77.21.60 | 2806846780 | 0 |
| 167.77.21.61 | 2806846781 | 0 |
| 167.77.21.62 | 2806846782 | 0 |
| 167.77.21.63 | 2806846783 | 0 |
| 167.77.21.64 | 2806846784 | 0 |
| 167.77.21.65 | 2806846785 | 0 |
| 167.77.21.66 | 2806846786 | 0 |
| 167.77.21.67 | 2806846787 | 0 |
| 167.77.21.68 | 2806846788 | 0 |
| 167.77.21.69 | 2806846789 | 0 |
| 167.77.21.70 | 2806846790 | 0 |
| 167.77.21.71 | 2806846791 | 0 |
| 167.77.21.72 | 2806846792 | 0 |
| 167.77.21.73 | 2806846793 | 0 |
| 167.77.21.74 | 2806846794 | 0 |
| 167.77.21.75 | 2806846795 | 0 |
| 167.77.21.76 | 2806846796 | 0 |
| 167.77.21.77 | 2806846797 | 0 |
| 167.77.21.78 | 2806846798 | 0 |
| 167.77.21.79 | 2806846799 | 0 |
| 167.77.21.80 | 2806846800 | 0 |
| 167.77.21.81 | 2806846801 | 0 |
| 167.77.21.82 | 2806846802 | 0 |
| 167.77.21.83 | 2806846803 | 0 |
| 167.77.21.84 | 2806846804 | 0 |
| 167.77.21.85 | 2806846805 | 0 |