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129.4.0.0/16
RIR
arin
Country
US
Status
allocated
Allocation date
1988-03-09
Ownership history
Org
Handle
First seen
Last seen
Northrop Grumman Corp.
NET-129-4-0-0-1
2026-07-16 16:29:03.167000
2026-09-02 16:54:18.290000