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137.187.0.0/16
RIR
arin
Country
US
Status
allocated
Allocation date
1989-12-13
Ownership history
Org
Handle
First seen
Last seen
National Institutes of Health
NET-137-187-0-0-1
2026-07-16 19:47:51.097000
2026-09-02 20:14:43.065000