Report for 26153

Name

BCBSSC - Blue Cross Blue Shield of South Carolina, 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.

26153 BCBSSC - Blue Cross Blue Shield of South Carolina, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS3356          LEVEL3 - Level 3 Parent, LLC, US
    AS7018          ATT-INTERNET4 - AT&T Enterprises, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
15435 AS26153        ORIGIN  Originate:       4864 /19.75  Transit:          0 /0.00  BCBSSC - Blue Cross Blue Shield of South Carolina, 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       %
21455 AS26153       BCBSSC - Blue Cross Blue Shield of South Caro      7      2      1      6      1  14.29%


  Prefix               AS Path                              Aggregation Suggestion
  8.41.91.0/24         4777 2497 7018 26153   
  66.192.63.0/24       4777 2497 7018 26153   
  208.60.144.0/22      4777 2497 7018 26153 + Announce - aggregate of 208.60.144.0/23 (4777 2497 7018 26153) and 208.60.146.0/23 (4777 2497 7018 26153)
  208.60.144.0/23      4777 2497 7018 26153 - Withdrawn - aggregated with 208.60.146.0/23 (4777 2497 7018 26153)
  208.60.146.0/23      4777 2497 7018 26153 - Withdrawn - aggregated with 208.60.144.0/23 (4777 2497 7018 26153)
  208.68.208.0/22      4777 2497 7018 26153   
  208.68.211.0/24      4777 2497 3356 26153   
  208.83.144.0/21      4777 2497 7018 26153   

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

AS26153   5 More Specifics   7 Total Advertisements   BCBSSC - Blue Cross Blue Shield of South Carolina, US
    8.41.91.0/24                  8.32.0.0/11
    66.192.63.0/24                66.192.0.0/14
    208.60.144.0/23               208.60.0.0/14
    208.60.146.0/23               208.60.0.0/14
    208.68.211.0/24               208.68.208.0/22

Whois Entry

whois: 402591

IANA has recorded AS26153 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS26153\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:       26153
             ASName:         BCBSSC
             ASHandle:       AS26153
             RegDate:        2002-07-16
             Updated:        2021-06-14
             Ref:            https://rdap.arin.net/registry/autnum/26153
             
             
             OrgName:        Blue Cross Blue Shield of South Carolina
             OrgId:          BCBSSC
             Address:        I-20  Alpine Road
             City:           Columbia
             StateProv:      SC
             PostalCode:     29219
             Country:        US
             RegDate:        1996-04-28
             Updated:        2026-05-12
             Ref:            https://rdap.arin.net/registry/entity/BCBSSC
             
             
             OrgAbuseHandle: ADMIN7139-ARIN
             OrgAbuseName:   Admin, Network 
             OrgAbusePhone:  +1-803-264-6223 
             OrgAbuseEmail:  network.admin@bcbssc.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ADMIN7139-ARIN
             
             OrgNOCHandle: BCBSS-ARIN
             OrgNOCName:   BCBSSC-Net-Ops
             OrgNOCPhone:  +1-803-264-0000 
             OrgNOCEmail:  network.operations@bcbssc.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/BCBSS-ARIN
             
             OrgTechHandle: OCHRI-ARIN
             OrgTechName:   O, Chris 
             OrgTechPhone:  +1-803-264-0939 
             OrgTechEmail:  chris.oden@bcbssc.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/OCHRI-ARIN
             
             OrgNOCHandle: ADMIN7139-ARIN
             OrgNOCName:   Admin, Network 
             OrgNOCPhone:  +1-803-264-6223 
             OrgNOCEmail:  network.admin@bcbssc.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/ADMIN7139-ARIN
             
             OrgAbuseHandle: BCBSS-ARIN
             OrgAbuseName:   BCBSSC-Net-Ops
             OrgAbusePhone:  +1-803-264-0000 
             OrgAbuseEmail:  network.operations@bcbssc.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/BCBSS-ARIN
             
             OrgTechHandle: CANET7-ARIN
             OrgTechName:   Canetto, Michael 
             OrgTechPhone:  +1-803-382-8122 
             OrgTechEmail:  michael.canetto@bcbssc.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/CANET7-ARIN
             
             RTechHandle: ADMIN7139-ARIN
             RTechName:   Admin, Network 
             RTechPhone:  +1-803-264-6223 
             RTechEmail:  network.admin@bcbssc.com
             RTechRef:    https://rdap.arin.net/registry/entity/ADMIN7139-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.
             #