| IP: | 81.204.72.51 |
| Country: | Netherlands (NL) |
| Region: | 07 |
| City: | Amsterdam |
| Latitude: | 52.35 |
| Longitude: | 4.9167 |
| Reverse DNS: | 81-204-72-51.fixed.kpn.net |
| Class A: | 81 |
| Class B: | 81.204 |
| Class C: | 81.204.72 |
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