AS5050 Pittsburgh Supercomputing Center

PSC-EXT - Pittsburgh Supercomputing Center · registered in the United States

IPv4 addresses58,88011 prefixes · 0.002% of announced IPv4

Rank in United States#1,412largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#3,682of 79,396 networks with IPv4

IPv61 x /32 (65,537 x /48)2 prefixes

CountryUnited States18,679 ASNs registered there

Open AS5050 in ASN lookup Look up an IP in this network (104.128.208.1) All networks in United States

IPv4 prefixes

All 11 prefixes, in address order.

104.128.208.0/20
147.72.249.0/24
147.73.0.0/19
147.73.32.0/19
147.73.64.0/18
147.73.128.0/18
167.88.240.0/20
192.70.222.0/24
192.88.114.0/23
192.112.102.0/24
192.231.244.0/24

IPv6 prefixes

All 2 prefixes.

2001:5e8::/32
2620:72:4000::/48

Other ASNs named Pittsburgh Supercomputing Center

2 other networks use the same organisation name; together with AS5050 they announce 141,568 IPv4 addresses.

ASNNameIPv4 addresses

AS1206PSCNET-HS-AS - Pittsburgh Supercomputing Center US49,664

AS1207PSCNET-HS-TEST-AS - Pittsburgh Supercomputing Center US33,024

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ASNNameIPv4 addresses

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AS36733#1411 DNEO-OSP7 - Comcast Cable Communications, LLC58,880

AS12097#1413 MASSCOM - Massillon Cable Communications58,624

AS27026#1414 NETWORKMARYLAND - networkMaryland58,624

AS11231#1415 GETTYSBURG-DOM - GETTYSBURG COLLEGE58,368

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources