| IP: | 18.21.172.100 |
| Country: | United States (US) |
| Region: | MA |
| City: | Cambridge |
| Latitude: | 42.3646 |
| Longitude: | -71.1028 |
| Zip code: | 02139 |
| Area code: | 617 |
| Reverse DNS: | 18.21.172.100 |
| Class A: | 18 |
| Class B: | 18.21 |
| Class C: | 18.21.172 |
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