| IP: | 209.6.4.220 |
| Country: | United States (US) |
| Region: | MA |
| City: | Boston |
| Latitude: | 42.3425 |
| Longitude: | -71.0677 |
| Area code: | 617 |
| Reverse DNS: | immunogen13.i.subnet.rcn.com |
| Class A: | 209 |
| Class B: | 209.6 |
| Class C: | 209.6.4 |
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