Every name.
A world behind it.

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


#
# Query terms are ambiguous.  The query is assumed to be:
#     "n 128.91.225.252"
#
# Use "?" to get help.
#

NetRange:       128.91.0.0 - 128.91.255.255
CIDR:           128.91.0.0/16
NetName:        UPENN
NetHandle:      NET-128-91-0-0-1
Parent:         NET128 (NET-128-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   University of Pennsylvania (UNIVER-8-Z)
RegDate:        1985-09-18
Updated:        2021-12-14
Ref:            https://rdap.arin.net/registry/ip/128.91.0.0


OrgName:        University of Pennsylvania
OrgId:          UNIVER-8-Z
Address:        3401 Walnut Street
Address:        Suite 221A
City:           Philadelphia
StateProv:      PA
PostalCode:     19104-6228
Country:        US
RegDate:        2010-01-05
Updated:        2026-08-17
Ref:            https://rdap.arin.net/registry/entity/UNIVER-8-Z


OrgNOCHandle: UNIVE-ARIN
OrgNOCName:   University of Pennsylvania
OrgNOCPhone:  +1-215-573-9631 
OrgNOCEmail:  noc@isc.upenn.edu
OrgNOCRef:    https://rdap.arin.net/registry/entity/UNIVE-ARIN

OrgAbuseHandle: ISO-ARIN
OrgAbuseName:   Information Security Officer
OrgAbusePhone:  +1-215-898-2172 
OrgAbuseEmail:  security@upenn.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ISO-ARIN

OrgTechHandle: OBRIE72-ARIN
OrgTechName:   O'Brien, John 
OrgTechPhone:  +1-215-898-9818 
OrgTechEmail:  obrienjw@upenn.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/OBRIE72-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#