Report for 399776

Name

PBC-SEA-WA-POP - Premera Blue Cross, 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 AS6447) 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.

399776 PBC-SEA-WA-POP, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS14744         INTERNAP-BLOCK-4, US
    AS3257          GTT-BACKBONE GTT, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
21604 AS399776       ORIGIN  Originate:       3072 /20.42  Transit:          0 /0.00  PBC-SEA-WA-POP, 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       %
76930 AS399776      PBC-SEA-WA-POP, US                                 4      0      0      4      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  199.187.64.0/21      293 1828 14744 399776 399776 399776   
  199.187.70.0/24      293 1828 14744 399776   
  199.187.88.0/23      6939 1828 14744 399776   
  199.187.89.0/24      3257 399776            

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

AS399776   2 More Specifics   2 Total Advertisements   PBC-SEA-WA-POP, US
    199.187.88.0/22               199.187.64.0/19
    199.187.88.0/23               199.187.64.0/19

Prefixes added and withdrawn by this origin AS in the past 7 days.

    + 199.187.88.0/22             Announced

Whois Entry

whois: 402590

IANA has recorded AS399776 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS399776\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:       399776
             ASName:         PBC-SEA-WA-POP
             ASHandle:       AS399776
             RegDate:        2021-06-11
             Updated:        2021-06-11
             Ref:            https://rdap.arin.net/registry/autnum/399776
             
             
             OrgName:        Premera Blue Cross
             OrgId:          PBC-39
             Address:        7001 220th ST SW
             City:           Mountlake Terrace
             StateProv:      WA
             PostalCode:     98043
             Country:        US
             RegDate:        2003-03-21
             Updated:        2021-03-26
             Ref:            https://rdap.arin.net/registry/entity/PBC-39
             
             
             OrgTechHandle: ZP99-ARIN
             OrgTechName:   Network Operations
             OrgTechPhone:  +1-425-918-5913 
             OrgTechEmail:  ITInfraNetworkServices@premera.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/ZP99-ARIN
             
             OrgAbuseHandle: ZP99-ARIN
             OrgAbuseName:   Network Operations
             OrgAbusePhone:  +1-425-918-5913 
             OrgAbuseEmail:  ITInfraNetworkServices@premera.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ZP99-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.
             #