AS Number
AS55
AS Name
UPENN
Org Name
University of Pennsylvania
Registry

arin

RegDate

2010-01-05

Updated

2022-08-03

AS55 Looking Glass
IPv4Prefixes

10

IPv6Prefixes

1

IPv4 NUMs

262,656

IPv6 NUMs(/64)

4,294,967,296

262,656 IPv4 Addresses
CIDR Description IP Num
128.91.0.0/24 University of Pennsylvania 256
128.91.0.0/16 University of Pennsylvania 65536
130.91.0.0/24 University of Pennsylvania 256
130.91.0.0/16 University of Pennsylvania 65536
158.130.0.0/24 University of Pennsylvania 256
158.130.0.0/16 University of Pennsylvania 65536
165.123.0.0/24 University of Pennsylvania 256
165.123.0.0/16 University of Pennsylvania 65536
192.5.44.0/24 University of Pennsylvania 256
192.84.2.0/24 University of Pennsylvania 256
CIDR Description IP NUMs(prefix /64)
2607:f470::/32 University of Pennsylvania 4294967296
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS174 COGENT-174 - Cogent Communications, US United States 27,276,544 237,435,813,888 IPv4 IPv4 IPv6 IPv6
AS3356 LEVEL3 - Level 3 Parent, LLC, US United States 29,807,288 73,033,783,552 IPv4 IPv4 IPv6 IPv6
AS3549 LVLT-3549 - Level 3 Parent, LLC, US United States 6,278,912 146,050,711,552 IPv4 IPv4 IPv6 IPv6
AS11164 INTERNET2-I2PX - Internet2, US United States 1,280 131,072 IPv4 IPv4 IPv6 IPv6
AS11537 INTERNET2-RESEARCH-EDU - Internet2, US United States 7,168 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS46274 UPHS - Penn Medicine, US United States 256 0 IPv4 IPv4
IP Address Domain NUMs Domains
128.91.2.8 1 zimbra.upenn.edu
128.91.2.14 1 lists.upenn.edu
128.91.2.35 1 dolphin.upenn.edu
128.91.2.38 1 pobox.upenn.edu
128.91.2.93 1 mail.vet.upenn.edu
128.91.2.108 1 mailbox.zimbra.upenn.edu
128.91.2.122 1 mail.med.upenn.edu
128.91.2.210 1 nisc.net.isc.upenn.edu
128.91.2.251 1 directory.upenn.edu
128.91.3.3 1 pobox.upenn.edu
ASNumber:       55
ASName:         UPENN
ASHandle:       AS55
RegDate:        1985-12-18
Updated:        2021-10-14
Comment:        https://www.upenn.edu/
Comment:        Main AS number for PennNet of the University of Pennsylvania    
Ref:            https://rdap.arin.net/registry/autnum/55


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:        2022-08-03
Ref:            https://rdap.arin.net/registry/entity/UNIVER-8-Z


OrgTechHandle: OBRIE72-ARIN
OrgTechName:   O'Brien, John 
OrgTechPhone:  +1-215-898-9818 
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/OBRIE72-ARIN

OrgNOCHandle: UNIVE-ARIN
OrgNOCName:   University of Pennsylvania
OrgNOCPhone:  +1-215-573-9631 
OrgNOCEmail:  [email protected]
OrgNOCRef:    https://rdap.arin.net/registry/entity/UNIVE-ARIN

OrgAbuseHandle: ISO-ARIN
OrgAbuseName:   Information Security Officer
OrgAbusePhone:  +1-215-573-2037 
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ISO-ARIN