| IP: | 18.138.81.172 |
| Country: | United States (US) |
| Region: | MA |
| City: | Cambridge |
| Latitude: | 42.3646 |
| Longitude: | -71.1028 |
| Zip code: | 02139 |
| Area code: | 617 |
| Reverse DNS: | ec2-18-138-81-172.ap-southeast-1.compute.amazonaws.com |
| Class A: | 18 |
| Class B: | 18.138 |
| Class C: | 18.138.81 |
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