AS18964 — AHSSSCI - Adventist Health System Sunbelt Healthcare Corporation

AS18964 announces 3 IPv4 prefixes covering 20,736 addresses and 0 IPv6 prefixes.

About this network

The AS handle AHSSSCI is held by Adventist Health System Sunbelt Healthcare Corporation.

What it's used for

• The address space carries corporate infrastructure for a healthcare system, evidenced by netnames SSCI-2 and SSCI and registrants "Adventist Health Systems." and "Sunbelt Systems".
• The AS announces 20736 IPv4 addresses across 13 prefixes with 5 observed neighbours, a ratio consistent with an internal corporate estate rather than a transit or access provider.

Notable

• Registrants align with the announcer, with "Adventist Health Systems." holding the majority of prefixes and "Sunbelt Systems" holding the 204.156.96.0/20 block.
• The inventory consists of 13 IPv4 prefixes in the United States, with no IPv6 prefixes announced.

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

Announced prefixes

• 204.139.64.0/18
• 204.156.96.0/20
• 204.156.120.0/24

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS32787 Akamai Technologies, Inc.
• AS15830 Equinix (EMEA) Acquisition Enterprises B.V.
• AS7018 AT&T Enterprises, LLC
• AS33363 Charter Communications, Inc

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS32787 Akamai Technologies, Inc.
• AS15830 Equinix (EMEA) Acquisition Enterprises B.V.
• AS7018 AT&T Enterprises, LLC
• AS33363 Charter Communications, Inc

Routing security

• RPKI: 0 valid, 0 invalid and 14 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 21% of announcements registered; 7 route objects.
• Listed in as-sets: AS-CHTR-SYNC, AS-EC-CH, AS-EC-DC, AS-KDDCUSTOMER2, AS-PROLE, AS-RR-BIZ, AS-TELSTRA-INTL-CUSTOMERS.