AS32165 — BCBSMA

AS32165 announces 6 IPv4 prefixes covering 1,792 addresses and 0 IPv6 prefixes.

About this network

The AS handle BCBSMA is operated by Blue Cross and Blue Shield of Massachusetts, Inc.

What it's used for

• The address space carries internal corporate infrastructure, evidenced by netnames BCBSMA-BLK2 and BCBSMA-COM registered to the insurer.
• The network announces 1792 IPv4 addresses across 6 prefixes with only 3 observed neighbours, indicating a small, self-contained enterprise estate rather than a transit or access provider.

Notable

• All registrants for the announced prefixes are Blue Cross and Blue Shield of Massachusetts, Inc., matching the AS holder exactly.
• The inventory consists of two distinct blocks: a /23 and several /24s in the 216.118.0.0/16 and 216.231.0.0/16 ranges, reflecting a finely subdivided internal corporate network.

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

Announced prefixes

• 216.118.177.0/24
• 216.118.182.0/24
• 216.118.190.0/23
• 216.231.77.0/24
• 216.231.83.0/24
• 216.231.91.0/24

Upstream networks

• AS55002 F5, Inc.
• AS3356 Level 3 Parent, LLC
• AS46887 Crown Castle Fiber LLC

Adjacent networks

• AS55002 F5, Inc.
• AS3356 Level 3 Parent, LLC
• AS46887 Crown Castle Fiber LLC

Internet exchanges

• Boston Internet Exchange — Boston, United States