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128.91.0.0/16
RIR
arin
Country
US
Status
allocated
Allocation date
1985-09-18
Ownership history
Org
Handle
First seen
Last seen
University of Pennsylvania
NET-128-91-0-0-1
2026-07-16 16:12:26.453000
2026-08-24 06:25:31.122000