AS5719 State University of New York at Stony Brook

SUNYSB - State University of New York at Stony Brook · registered in the United States

IPv4 addresses131,8405 prefixes · 0.004% of announced IPv4

Rank in United States#481largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#1,512of 79,396 networks with IPv4

IPv620 x /482 prefixes

CountryUnited States18,679 ASNs registered there

Open AS5719 in ASN lookup Look up an IP in this network (129.49.0.1) All networks in United States

IPv4 prefixes

All 5 prefixes, in address order.

129.49.0.0/16
130.245.0.0/16
192.12.89.0/24
192.12.90.0/24
192.42.55.0/24

IPv6 prefixes

All 2 prefixes.

2620:101::/46
2620:10d:1000::/44

Similar-sized networks in United States

ASNNameIPv4 addresses

AS1556#478 DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD)132,096

AS31#479 CIT - California Institute of Technology131,844

AS329#480 DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD)131,840

AS2013#482 PACIFIC-GAS - PG&E131,840

AS2642#483 LEG-CA-GOV - California Department of Technology131,840

AS5696#484 EXPRES - Express Scripts Incorporated131,840

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