AS35988 — UMASS-MEMORIAL-HEALTH-CARE

AS35988 announces 2 IPv4 prefixes covering 4,352 addresses and 0 IPv6 prefixes.

About this network

The AS handle UMASS-MEMORIAL-HEALTH-CARE is held by UMass Memorial Health Care Inc.

What it's used for

• The address space carries internal corporate infrastructure for a healthcare system, with netnames UMHC and UMR-7 registered to UMass Memorial entities.
• The inventory consists of 4 IPv4 prefixes totaling 4352 addresses, observed against only 2 routing neighbours, indicating a small, self-contained internal network rather than a transit or access provider.

Notable

• Registrants align with the announcer, listing Umass Memorial health care inc for the main blocks and UMass Memorial Realty, Inc. for the 66.9.45.0/24 prefix.
• The address inventory is finely subdivided into four distinct prefixes, consistent with site-by-site segmentation for a multi-facility healthcare organization.

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

Announced prefixes

• 66.9.45.0/24
• 160.79.128.0/20

Upstream networks

• AS20115 Charter Communications LLC
• AS46887 Crown Castle Fiber LLC

Adjacent networks

• AS20115 Charter Communications LLC
• AS46887 Crown Castle Fiber LLC

Routing security

• RPKI: 0 valid, 0 invalid and 3 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 3 route objects.
• Listed in as-sets: AS-13986, AS-18474, AS-CCF, AS-CCF-TEST, AS-CHTR-BB, AS-HURRICANE, AS-LIGHT-141, AS-RR-SYNC, AS16657:AS-CUST.