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	Prefix	Description
	104.128.208.0/20	La Roche College
	147.72.249.0/24	MOUNT ALOYSIUS COLLEGE
	147.73.0.0/16	Pittsburgh Supercomputing Center
	147.73.0.0/24	Pittsburgh Supercomputing Center
	147.73.3.0/24	Pittsburgh Supercomputing Center
	147.73.4.0/24	Pittsburgh Supercomputing Center
	147.73.6.0/24	Pittsburgh Supercomputing Center
	147.73.7.0/24	Pittsburgh Supercomputing Center
	147.73.8.0/24	Pittsburgh Supercomputing Center
	147.73.16.0/20	Pittsburgh Supercomputing Center
	167.88.240.0/20	Point Park University
	192.70.222.0/24	Pittsburgh Supercomputing Center
	192.88.114.0/24	Pittsburgh Supercomputing Center
	192.88.115.0/24	Pittsburgh Supercomputing Center
	192.112.102.0/24	Juniata College
	192.231.244.0/24	Pittsburgh Supercomputing Center
	2001:5e8::/32	Pittsburgh Supercomputing Center
	2620:72:4000::/48	Juniata College

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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	✔	✔
	AS6939	Hurricane Electric LLC	✔	✔
	AS3356	Lumen (Level 3)	✔	✔
	AS7925	West Virginia Network for Educational Telecomputing	✔	✘
	AS1206	Pittsburgh Supercomputing Center	✔	✘
	AS1207	Pittsburgh Supercomputing Center	✔	✘
	AS11164	Internet2 I2PX	✔	✔
	AS23102	Robert Morris University	✔	✘
	AS36407	Software Engineering Institute	✔	✔
	AS4130	University of Pittsburgh	✔	✔
	AS19281	Quad9	✔	✔
	AS9	Carnegie Mellon University	✔	✔
	AS18572	Beaver Valley Intermediate Unit #27	✔	✔
	AS11537	Internet2	✔	✔
	AS3783	Allegheny Intermediate Unit	✔	✔
	AS12118	West Virginia University	✔	✘
	AS27604	Seton Hill University	✔	✘
	AS11009	Carlow University	✔	✘
	AS63472	eiNetwork	✔	✘
	AS14773	Lancaster-Lebanon Intermediate Unit 13	✔	✔
	AS293	ESnet	✔	✔
	AS1239	Sprint Wireline (Cogent)	✔	✘
	AS15169	Google LLC	✔	✔
	AS13335	Cloudflare, Inc.	✔	✘

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Downstreams

	ASN	Description	IPv4	IPv6
	AS7925	West Virginia Network for Educational Telecomputing	✔	✘
	AS1206	Pittsburgh Supercomputing Center	✔	✘
	AS1207	Pittsburgh Supercomputing Center	✔	✘
	AS23102	Robert Morris University	✔	✘
	AS36407	Software Engineering Institute	✔	✔
	AS19281	Quad9	✔	✔
	AS4130	University of Pittsburgh	✔	✔
	AS9	Carnegie Mellon University	✔	✔
	AS18572	Beaver Valley Intermediate Unit #27	✔	✔
	AS27604	Seton Hill University	✔	✘
	AS11009	Carlow University	✔	✘
	AS3783	Allegheny Intermediate Unit	✔	✘
	AS12118	West Virginia University	✔	✘

ASHandle:       AS5050
OrgID:          PSC-Z
ASName:         PSC-EXT
ASNumber:       5050
RegDate:        1995-03-29
Updated:        2012-04-02
TechHandle:     PN-ORG-ARIN
Source:         ARIN



OrgID:          PSC-Z
OrgName:        Pittsburgh Supercomputing Center
CanAllocate:    
Street:         300 S Craig St
City:           Pittsburgh
State/Prov:     PA
Country:        US
PostalCode:     15213
RegDate:        2008-05-29
Updated:        2022-04-27
OrgAdminHandle: ML1385-ARIN
OrgTechHandle:  PN-ORG-ARIN
OrgTechHandle:  SC274-ARIN
OrgAbuseHandle: PN-ORG-ARIN
OrgAbuseHandle: SC274-ARIN
Source:         ARIN





OrgAdminHandle:       ML1385-ARIN
OrgAdminName:         Michael Lambert
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        PN-ORG-ARIN
OrgTechName:           Pittsburgh Supercomputing Center
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        SC274-ARIN
OrgTechName:          Stephen Cunningham
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       PN-ORG-ARIN
OrgAbuseName:          Pittsburgh Supercomputing Center
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       SC274-ARIN
OrgAbuseName:         Stephen Cunningham
# Email removed, Log into bgp.tools to see whois emails


TechHandle:           PN-ORG-ARIN
TechName:              Pittsburgh Supercomputing Center
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2026-05-07T03:38:26Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RIPE	as-gblx	964
LEVEL3	as-lumen-customers-asns	10695
RADB	as-dqecust	75
RADB	as5050:as-all	97
RADB	as5050:as-i1-abilene	9
RADB	as-ctbc-customers116	49
ARIN	as-dqecust	75