AS22575 — MASSMUTUAL2

AS22575 announces 2 IPv4 prefixes covering 8,704 addresses and 0 IPv6 prefixes.

About this network

The AS handle MASSMUTUAL2 is operated by Massachusetts Mutual Life Insurance Company.

What it's used for

• The address space carries corporate infrastructure, evidenced by netnames MMLIC-CT and ATT-NET-12-189-182-0-23 registered to the insurance company.
• The AS announces 8704 IPv4 addresses across 2 prefixes with only 2 observed neighbours, indicating an internal corporate estate rather than a transit or access network.

Notable

• Registrants for both prefixes align with the announcer, listing "Massachusetts Mutual Life Insurance Co." and "Massachusetts Mutual Life Insurance Company".
• The inventory consists of two distinct blocks: a /19 (170.6.0.0/19) and a /23 (12.189.182.0/23), representing a finely subdivided internal network.

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

Announced prefixes

• 12.189.182.0/23
• 170.6.0.0/19

Upstream networks

• AS32787 Akamai Technologies, Inc.
• AS62 CyrusOne LLC
• AS7018 AT&T Enterprises, LLC
• AS7015 Comcast Cable Communications, LLC

Adjacent networks

• AS32787 Akamai Technologies, Inc.
• AS62 CyrusOne LLC
• AS7018 AT&T Enterprises, LLC
• AS7015 Comcast Cable Communications, LLC

Routing security

• RPKI: 5 valid, 0 invalid and 1 not-found announcements; 1 ROAs.
• ASPA: none published.
• IRR: 67% of announcements registered; 17 route objects.
• Listed in as-sets: AS-C1, AS-COMCAST-EDIA, AS-FLEXENTIAL-CUSTOMERS, AS-PROLE, AS-RR-BIZ, AS-TELSTRA-INTL-CUSTOMERS.