AS11452 Mount Sinai School of Medicine

MOUNT-SINAI - Mount Sinai School of Medicine · registered in the United States

IPv4 addresses55,29610 prefixes · 0.002% of announced IPv4

Rank in United States#1,451largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#3,780of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS11452 in ASN lookup Look up an IP in this network (146.203.0.1) All networks in United States

IPv4 prefixes

All 10 prefixes, in address order.

146.203.0.0/17
146.203.128.0/20
146.203.144.0/21
146.203.192.0/19
146.203.224.0/20
146.203.240.0/21
146.203.248.0/22
146.203.252.0/23
146.203.255.0/24
159.123.127.0/24

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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