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146.139.0.0/16
RIR
arin
Country
US
Status
allocated
Allocation date
1991-02-11
Ownership history
Org
Handle
First seen
Last seen
Argonne National Laboratory
NET-146-139-0-0-1
2026-07-17 00:56:20.818000
2026-08-24 15:34:27.012000