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	Prefix	Description
	128.91.0.0/16	University of Pennsylvania
	130.91.0.0/16	University of Pennsylvania
	158.130.0.0/16	University of Pennsylvania
	165.123.0.0/16	University of Pennsylvania
	192.84.2.0/24	University of Pennsylvania
	2607:f470::/32	University of Pennsylvania

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS174	Cogent Communications, LLC	✔	✔
	AS3356	Lumen (Level 3)	✔	✔
	AS11164	Internet2 I2PX	✔	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS174	Cogent Communications, LLC	✔	✔
	AS3356	Lumen (Level 3)	✔	✔
	AS11164	Internet2 I2PX	✔	✔
	AS69	University of Pennsylvania	✔	✘
	AS46274	Penn Medicine	✔	✘
	AS11537	Internet2	✔	✔

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Downstreams

	ASN	Description	IPv4	IPv6
	AS69	University of Pennsylvania	✔	✘
	AS46274	Penn Medicine	✔	✘

ASHandle:       AS55
OrgID:          UNIVER-8-Z
ASName:         UPENN
ASNumber:       55
RegDate:        1985-12-18
Comment:        https://www.upenn.edu/
Comment:        Main AS number for PennNet of the University of Pennsylvania
Updated:        2021-10-14
Source:         ARIN



OrgID:          UNIVER-8-Z
OrgName:        University of Pennsylvania
CanAllocate:    
Street:         3401 Walnut Street
Street:         Suite 221A
City:           Philadelphia
State/Prov:     PA
Country:        US
PostalCode:     19104-6228
RegDate:        2010-01-05
Updated:        2022-08-03
OrgAdminHandle: UNIVE-ARIN
OrgTechHandle:  OBRIE72-ARIN
OrgAbuseHandle: ISO-ARIN
OrgNOCHandle:   UNIVE-ARIN
Source:         ARIN





OrgAdminHandle:       UNIVE-ARIN
OrgAdminName:          University of Pennsylvania
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        OBRIE72-ARIN
OrgTechName:          John O'Brien
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       ISO-ARIN
OrgAbuseName:          Information Security Officer
# Email removed, Log into bgp.tools to see whois emails


OrgNOCHandle:         UNIVE-ARIN
OrgNOCName:            University of Pennsylvania
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2025-12-24T03:25:17Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as55:as-all	4
RADB	as10466:as-members	5
LEVEL3	as-level3-customers-na	0
RADB	as-comcast-edia	2752
LEVEL3	as-level3-origins-na	0
RADB	as55:as-cone	1
LEVEL3	as-lumen-customers-asns	10695
RADB	as174:as-cogc-022	47
RADB	as16631:as-cogc-010	73