AS54576 — RESTORE ASN 54576 FOR HOAG MEMORIAL HOSPITAL - Hoag Memorial Hospital Presbyterian

AS54576 announces 6 IPv4 prefixes covering 2,816 addresses and 0 IPv6 prefixes.

About this network

AS54576 is held by Hoag Memorial Hospital Presbyterian.

What it's used for

• The address space carries internal hospital infrastructure, identified by the netname NETBLK-HOAG-HOSPITAL across all six announced prefixes.
• The AS announces 2,816 IPv4 addresses across 6 prefixes and maintains 3 observed neighbours, a ratio consistent with a single-site corporate estate rather than a transit or access provider.
• Traffic from this network consists of internal communications, clinical systems, and administrative endpoints for the hospital’s operations in Newport Beach, California.

Notable

• All registrants for the announced prefixes are listed as Hoag Memorial Hospital Presbyterian, matching the AS holder.
• The address inventory is finely subdivided into six distinct blocks, reflecting site-by-site segmentation typical of a large healthcare facility.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 198.190.34.0/23
• 198.190.36.0/24
• 198.190.38.0/23
• 198.190.46.0/24
• 198.190.52.0/22
• 198.190.59.0/24

Upstream networks

• AS46887 Crown Castle Fiber LLC
• AS7018 AT&T Enterprises, LLC
• AS20001 Charter Communications Inc

Adjacent networks

• AS46887 Crown Castle Fiber LLC
• AS7018 AT&T Enterprises, LLC
• AS20001 Charter Communications Inc

Routing security

• RPKI: 0 valid, 0 invalid and 11 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 0% of announcements registered; 3 route objects.
• Listed in as-sets: AS-CCF, AS-CCF-TEST, AS-CHTR-SYNC, AS-HURRICANE, AS-RR-BIZ.