Report for 23494

Name

HSC - Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas, 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.

23494 HSC - Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas, US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS3356          LEVEL3 - Level 3 Parent, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
35567 AS23494        ORIGIN  Originate:       1024 /22.00  Transit:          0 /0.00  HSC - Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas, 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       %
37009 AS23494       HSC - Blue Cross Blue Shield of Illinois or B      4      0      0      4      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  205.172.133.0/24     4777 2497 3356 23494   
  205.172.134.0/24     4777 2497 3356 23494   
  208.79.24.0/24       4777 2497 3356 23494   
  208.79.26.0/24       4777 2497 3356 23494   

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

AS23494   4 More Specifics   4 Total Advertisements   HSC - Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas, US
    205.172.133.0/24              205.172.132.0/22
    205.172.134.0/24              205.172.132.0/22
    208.79.24.0/24                208.79.24.0/22
    208.79.26.0/24                208.79.24.0/22

Whois Entry

whois: 402332

IANA has recorded AS23494 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS23494\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:       23494
             ASName:         HSC
             ASHandle:       AS23494
             RegDate:        2002-03-27
             Updated:        2012-02-24
             Ref:            https://rdap.arin.net/registry/autnum/23494
             
             
             OrgName:        Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas
             OrgId:          HSCBCBI
             Address:        300 E. Randolph Street
             City:           Chicago
             StateProv:      IL
             PostalCode:     60601
             Country:        US
             RegDate:        2002-03-27
             Updated:        2024-05-17
             Ref:            https://rdap.arin.net/registry/entity/HSCBCBI
             
             
             OrgTechHandle: MSA111-ARIN
             OrgTechName:   Sanner, Michael 
             OrgTechPhone:  +1-214-354-8112 
             OrgTechEmail:  michael_sanner@hcsc.net
             OrgTechRef:    https://rdap.arin.net/registry/entity/MSA111-ARIN
             
             OrgAbuseHandle: MSA111-ARIN
             OrgAbuseName:   Sanner, Michael 
             OrgAbusePhone:  +1-214-354-8112 
             OrgAbuseEmail:  michael_sanner@hcsc.net
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/MSA111-ARIN
             
             OrgTechHandle: BARRK5-ARIN
             OrgTechName:   Barr, Kevin 
             OrgTechPhone:  +1-972-766-4412 
             OrgTechEmail:  kevin_barr@bcbstx.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/BARRK5-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.
             #