AS1206 Pittsburgh Supercomputing Center

PSCNET-HS-AS - Pittsburgh Supercomputing Center · registered in the United States

IPv4 addresses49,6644 prefixes · 0.002% of announced IPv4

Rank in United States#1,492largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#3,939of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS1206 in ASN lookup Look up an IP in this network (128.182.0.1) All networks in United States

IPv4 prefixes

All 4 prefixes, in address order.

128.182.0.0/18
128.182.128.0/17
192.101.139.0/24
192.101.140.0/24

Other ASNs named Pittsburgh Supercomputing Center

2 other networks use the same organisation name; together with AS1206 they announce 141,568 IPv4 addresses.

ASNNameIPv4 addresses

AS5050PSC-EXT - Pittsburgh Supercomputing Center US58,880

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

Similar-sized networks in United States

ASNNameIPv4 addresses

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AS1747#1491 IBMWATSON-AS - IBM49,920

AS11550#1493 SDL-20-AS - Smithville Digital, LLC49,664

AS11071#1494 IW-ASN-11071 - InfoWest49,408

AS394380#1495 LEASEWEB-USA-DAL - Leaseweb USA, Inc.49,408

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