Report for 32165

Name

BCBSMA - Blue Cross and Blue Shield of Massachusetts, Inc., US

AS Adjacency Report

In the context of this report "Upstream" indicates that there is an adjacent AS that lines between the BGP table collection point (in this case at AS2.0) and the specified AS. Similarly, "Downstream" refers to an adjacent AS that lies beyond the specified AS. This upstream / downstream categorisation is strictly a description relative topology, and should not be confused with provider / customer / peer inter-AS relationships.

32165 BCBSMA - Blue Cross and Blue Shield of Massachusetts, Inc., US

  Adjacency:     3  Upstream:     3  Downstream:     0
  Upstream Adjacent AS list
    AS46887         CROWNCASTLE-AS46887 - Crown Castle Fiber LLC, US
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
    AS55002         DEFENSE-NET - F5, Inc., US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
28825 AS32165        ORIGIN  Originate:       1792 /21.19  Transit:          0 /0.00  BCBSMA - Blue Cross and Blue Shield of Massachusetts, Inc., US

Aggregation Suggestions

        Filter: Aggregates, Specifics

This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.

 Rank AS            AS Name                                      Current  Wthdw  Aggte  Annce Redctn       %
21793 AS32165       BCBSMA - Blue Cross and Blue Shield of Massac      7      2      1      6      1  14.29%


  Prefix               AS Path                              Aggregation Suggestion
  216.118.177.0/24     4777 2516 3356 32165   
  216.118.182.0/24     4777 2497 3356 32165   
  216.118.190.0/23     4777 2516 35280 55002 32165 + Announce - aggregate of 216.118.190.0/24 (4777 2516 35280 55002 32165) and 216.118.191.0/24 (4777 2516 35280 55002 32165)
  216.118.190.0/24     4777 2516 35280 55002 32165 - Withdrawn - aggregated with 216.118.191.0/24 (4777 2516 35280 55002 32165)
  216.118.191.0/24     4777 2516 35280 55002 32165 - Withdrawn - aggregated with 216.118.190.0/24 (4777 2516 35280 55002 32165)
  216.231.77.0/24      4608 7575 6461 46887 32165   
  216.231.83.0/24      4777 2516 35280 55002 32165   
  216.231.91.0/24      4777 2516 35280 55002 32165   

Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.

AS32165   7 More Specifics   7 Total Advertisements   BCBSMA - Blue Cross and Blue Shield of Massachusetts, Inc., US
    216.118.177.0/24              216.118.176.0/20
    216.118.182.0/24              216.118.176.0/20
    216.118.190.0/24              216.118.176.0/20
    216.118.191.0/24              216.118.176.0/20
    216.231.77.0/24               216.231.64.0/19
    216.231.83.0/24               216.231.64.0/19
    216.231.91.0/24               216.231.64.0/19

Whois Entry

whois: 402332

IANA has recorded AS32165 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS32165\n             
             #
             # ARIN WHOIS data and services are subject to the Terms of Use
             # available at: https://www.arin.net/resources/registry/whois/tou/
             #
             # If you see inaccuracies in the results, please report at
             # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
             #
             # Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
             #
             
             
             ASNumber:       32165
             ASName:         BCBSMA
             ASHandle:       AS32165
             RegDate:        2016-08-30
             Updated:        2016-08-30
             Ref:            https://rdap.arin.net/registry/autnum/32165
             
             
             OrgName:        Blue Cross and Blue Shield of Massachusetts, Inc.
             OrgId:          BCBSM-3
             Address:        101 Huntington Avenue #1300
             City:           Boston
             StateProv:      MA
             PostalCode:     02199
             Country:        US
             RegDate:        1999-06-18
             Updated:        2025-08-21
             Ref:            https://rdap.arin.net/registry/entity/BCBSM-3
             
             
             OrgTechHandle: URLAD-ARIN
             OrgTechName:   URL Admin
             OrgTechPhone:  +1-617-246-2675 
             OrgTechEmail:  URLAdmin@bcbsma.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/URLAD-ARIN
             
             OrgTechHandle: ENS8-ARIN
             OrgTechName:   Engineering Network Services
             OrgTechPhone:  +1-617-246-2002 
             OrgTechEmail:  networkgroup@bcbsma.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/ENS8-ARIN
             
             OrgAbuseHandle: ENS8-ARIN
             OrgAbuseName:   Engineering Network Services
             OrgAbusePhone:  +1-617-246-2002 
             OrgAbuseEmail:  networkgroup@bcbsma.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ENS8-ARIN
             
             
             #
             # ARIN WHOIS data and services are subject to the Terms of Use
             # available at: https://www.arin.net/resources/registry/whois/tou/
             #
             # If you see inaccuracies in the results, please report at
             # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
             #
             # Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
             #