AS2936 National Energy Research Scientific Computing Center

NERSC - National Energy Research Scientific Computing Center · registered in the United States

IPv4 addresses65,5361 prefixes · 0.002% of announced IPv4

Rank in United States#1,041largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#2,952of 79,396 networks with IPv4

IPv616 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS2936 in ASN lookup Look up an IP in this network (128.55.0.1) All networks in United States

IPv4 prefixes

All 1 prefix, in address order.

128.55.0.0/16

IPv6 prefixes

All 1 prefix.

2620:0:28b0::/44

Similar-sized networks in United States

ASNNameIPv4 addresses

AS27016#1038 NRC-NET - United States Nuclear Regulatory Commission65,536

AS29899#1039 GEISINGER - Geisinger System Services65,536

AS46476#1040 TTUHSC - Texas Tech University Health Sciences Center65,536

AS3659#1042 CLAREMONT - Claremont University Consortium65,536

AS33503#1043 MCW-1-AS - Medical College of Wisconsin65,536

AS33703#1044 HOFSTRA-UNIVERSITY - Hofstra University65,536

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