AS53352 — HFHS-ASN - Henry Ford Health System

AS53352 announces 10 IPv4 prefixes covering 4,352 addresses and 0 IPv6 prefixes.

About this network

HFHS-ASN is operated by Henry Ford Health.

What it's used for

• The address space carries internal corporate traffic, identified by the consistent netname HFHS-PUBLIC-150 across all registered prefixes.
• The AS announces 4,352 IPv4 addresses across 10 prefixes and maintains 5 observed neighbours, a ratio indicative of a large internal corporate estate rather than a transit or access provider.
• Traffic from this AS consists of clinical, administrative, and research endpoints for a major health system operating multiple hospitals in Michigan.

Notable

• All registrants align with the announcer, with every prefix registered to Henry Ford Health System.
• The operator rebranded from Henry Ford Health System to Henry Ford Health, dropping the word "system" from its official name.
• The inventory consists of a mix of /22, /23, and /24 blocks, all within the 150.198.0.0/16 range, reflecting a finely subdivided internal network.

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

Announced prefixes

• 150.198.60.0/22
• 150.198.64.0/24
• 150.198.120.0/24
• 150.198.122.0/23
• 150.198.124.0/24
• 150.198.204.0/22
• 150.198.242.0/24
• 150.198.246.0/24
• 150.198.248.0/24
• 150.198.250.0/24

Upstream networks

• AS46887 Crown Castle Fiber LLC
• AS12129 123.Net, Inc.
• AS3356 Level 3 Parent, LLC
• AS30517 Great Lakes Comnet, Inc.
• AS33668 Comcast Cable Communications, LLC

Adjacent networks

• AS46887 Crown Castle Fiber LLC
• AS12129 123.Net, Inc.
• AS3356 Level 3 Parent, LLC
• AS30517 Great Lakes Comnet, Inc.
• AS33668 Comcast Cable Communications, LLC

Routing security

• RPKI: 0 valid, 0 invalid and 17 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 0% of announcements registered; 1 route objects.
• Listed in as-sets: AS-30517-ASSOCIATED, AS-CCF, AS-CCF-TEST, AS-COMCAST-EDIA, AS-HURRICANE, AS-I123-ARIN, AS-ROCKETFIBER1, AS3491:AS-CUSTOMERS-NA.