AS26122 — -Reserved AS-

AS26122 announces 2 IPv4 prefixes covering 512 addresses and 0 IPv6 prefixes.

About this network

AS26122 is held by St. Joseph's Hospital Health Center.

What it's used for

• The address space carries internal hospital infrastructure, evidenced by the reverse DNS record webexuser.sjhsyr.org and netnames TWTC-SJHHC and TRINITYHEALTH-SJHHC.
• The AS announces 512 IPv4 addresses across 2 prefixes with 3 observed neighbours, indicating a small-scale internal corporate estate rather than a transit or access network.

Notable

• Registrants include both St. Joseph's Hospital Health Center and Trinity Health Corporation, reflecting the hospital's affiliation with the larger health system.
• The inventory consists of two /24 blocks, one associated with the hospital directly and one with its parent organization.

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

Announced prefixes

• 74.203.239.0/24
• 199.26.212.0/24

Upstream networks

• AS46887 Crown Castle Fiber LLC
• AS7828 Northland Communications
• AS3549 Level 3 Parent, LLC

Adjacent networks

• AS46887 Crown Castle Fiber LLC
• AS7828 Northland Communications
• AS3549 Level 3 Parent, LLC

Routing security

• RPKI: 1 valid, 0 invalid and 1 not-found announcements; 1 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 3 route objects.
• Listed in as-sets: AS-CCF, AS-CCF-TEST, AS16657:AS-CUST.