AS15307 Childrens Hospital and Regional Medical Center

CHILDRENS-SEATTLE - Childrens Hospital and Regional Medical Center · registered in the United States

IPv4 addresses65,53622 prefixes · 0.002% of announced IPv4

Rank in United States#1,153largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#3,167of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS15307 in ASN lookup Look up an IP in this network (146.79.0.1) All networks in United States

IPv4 prefixes

All 22 prefixes, in address order.

146.79.0.0/17
146.79.128.0/24
146.79.129.0/24
146.79.130.0/23
146.79.132.0/22
146.79.136.0/21
146.79.144.0/20
146.79.160.0/19
146.79.192.0/22
146.79.196.0/23
146.79.198.0/23
146.79.200.0/24
146.79.201.0/24
146.79.202.0/23
146.79.204.0/22
146.79.208.0/20
146.79.224.0/20
146.79.240.0/21
146.79.248.0/22
146.79.252.0/23
146.79.254.0/24
146.79.255.0/24

Similar-sized networks in United States

ASNNameIPv4 addresses

AS14706#1150 MBARI-MAIN - Monterey Bay Aquarium Research Institute65,536

AS14890#1151 HAYBOONET - Haynes and Boone, L.L.P.65,536

AS15196#1152 MDDOT - Maryland Department of Transportation65,536

AS15323#1154 BSD405 - Bellevue School District #40565,536

AS15337#1155 WRHARPER - Wm. Rainey Harper College65,536

AS16424#1156 LBL-ESD - Linn Benton Lincoln Education Service District65,536

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