AS47039 — NGLI-11-47039 - National Guardian Life Insurance Company

AS47039 announces 2 IPv4 prefixes covering 512 addresses and 0 IPv6 prefixes.

About this network

NGLI-11-47039 is operated by National Guardian Life Insurance Company.

What it's used for

• The address space carries corporate infrastructure, evidenced by netnames ATT-NET-12-32-185-0 and MDTNWI-NATIONAL-TDSNET-NETBLK and reverse DNS entries pointing to tds.net static hosts.
• The AS announces 512 IPv4 addresses across 2 prefixes with 3 observed neighbours, indicating a small, self-contained corporate network rather than a transit or access provider.
• Traffic from this AS consists of office workers and internal business endpoints for an insurance company headquartered in Madison, Wisconsin.

Notable

• Registrants for both announced prefixes are listed as NATIONAL GUARDIAN LIFE, matching the AS holder.
• The company was formerly known as National Guardian Life Insurance Company and is now branded as NGL Insurance Company.
• The inventory consists of two /24 blocks, one historically associated with AT&T and the other with MDTNWI, reflecting leased or acquired address space for corporate use.

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

Announced prefixes

• 12.32.185.0/24
• 96.61.227.0/24

Upstream networks

• AS4181 TDS TELECOM
• AS40264 Charter Communications LLC
• AS7018 AT&T Enterprises, LLC

Adjacent networks

• AS4181 TDS TELECOM
• AS40264 Charter Communications LLC
• AS7018 AT&T Enterprises, LLC

Routing security

• RPKI: 1 valid, 0 invalid and 1 not-found announcements; 1 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 2 route objects.
• Listed in as-sets: AS-CHTR-SYNC, AS-HURRICANE, AS-RR-SYNC, AS-TDS-TRANSIT, AS-TEST-TDS-TRANSIT, AS-TEST1-TDS-TRANSIT, AS-TEST2-TDS-TRANSIT.