Report for 27351

Name

27351 - 21st Century Insurance Group, 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 AS4637) 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.

27351 21ST-NETWORK - 21st Century Insurance Group

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS7132    SBIS-AS - AT&T Internet Services

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
18172 AS27351  ORIGIN  Originate:        512 /23.00  Transit:          0 /0.00  21ST-NETWORK - 21st Century Insurance Group

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       %
16840 AS27351 21ST-NETWORK - 21st Century Insurance Gr      2      0      0      2      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  208.225.175.0/24     4637 7132 27351        
  208.225.176.0/24     4637 7132 27351        

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

AS27351   2 More Specifics   2 Total Advertisements   21ST-NETWORK - 21st Century Insurance Group
    208.225.175.0/24              208.192.0.0/10
    208.225.176.0/24              208.192.0.0/10

Whois Entry

whois: 402603

IANA has recorded AS27351 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS27351\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:       27351
             ASName:         27351
             ASHandle:       AS27351
             RegDate:        2018-11-12
             Updated:        2018-11-12
             Ref:            https://rdap.arin.net/registry/autnum/27351
             
             
             OrgName:        21st Century Insurance Group
             OrgId:          2CI-3
             Address:        :3 Beaver Valley Rd
             City:           Wilmington
             StateProv:      DE
             PostalCode:     19803
             Country:        US
             RegDate:        2000-11-28
             Updated:        2025-11-10
             Ref:            https://rdap.arin.net/registry/entity/2CI-3
             
             
             OrgTechHandle: VSH23-ARIN
             OrgTechName:   Shaw, Viral 
             OrgTechPhone:  +1-856-299-3944 
             OrgTechEmail:  viral.shaw@21st.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/VSH23-ARIN
             
             OrgTechHandle: DDICO-ARIN
             OrgTechName:   DDI Contact
             OrgTechPhone:  +1-734-717-0638 
             OrgTechEmail:  michael.e.odonnell@zurichservices.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/DDICO-ARIN
             
             OrgTechHandle: TGO87-ARIN
             OrgTechName:   Orndorff, Thomas Gerard
             OrgTechPhone:  +1-302-252-4860 
             OrgTechEmail:  thomas.orndorff@zurichservices.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/TGO87-ARIN
             
             OrgAbuseHandle: VSH23-ARIN
             OrgAbuseName:   Shaw, Viral 
             OrgAbusePhone:  +1-856-299-3944 
             OrgAbuseEmail:  viral.shaw@21st.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/VSH23-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.
             #