AS401426 St. Mary's Medical Center, Inc.

MHN - St. Mary's Medical Center, Inc. · registered in the United States

IPv4 addresses5122 prefixes · <0.001% of announced IPv4

Rank in United States#10,235largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#47,720of 79,396 networks with IPv4

IPv6256 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS401426 in ASN lookup Look up an IP in this network (23.128.52.1) All networks in United States

IPv4 prefixes

All 2 prefixes, in address order.

23.128.52.0/24
44.30.98.0/24

IPv6 prefixes

All 1 prefix.

2602:f7ce::/40

Other ASNs named St. Mary's Medical Center, Inc.

1 other network uses the same organisation name; together with AS401426 they announce 768 IPv4 addresses.

ASNNameIPv4 addresses

AS394668STMARYSMEDICALCENTER-2900 - St. Mary's Medical Center, Inc. US256

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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