Report for 19043

Name

ONEBEACONINSURANCEGROUP - OneBeacon Insurance Group LTD, 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.

19043 ONEBEACONINSURANCEGROUP, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS18540         RECOVERYPOINTSYSTEMS, US
    AS6461          ZAYO-6461, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
10770 AS19043        ORIGIN  Originate:       9216 /18.83  Transit:          0 /0.00  ONEBEACONINSURANCEGROUP, 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       %
21315 AS19043       ONEBEACONINSURANCEGROUP, US                        4      1      0      3      1  25.00%


  Prefix               AS Path                              Aggregation Suggestion
  205.134.128.0/19     2497 6461 19043        
  205.134.128.0/24     3257 18540 19043       
  205.134.132.0/23     2497 6461 19043      - Withdrawn - matching aggregate 205.134.128.0/19 2497 6461 19043
  205.134.158.0/24     3257 18540 19043       

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

AS19043   3 More Specifics   4 Total Advertisements   ONEBEACONINSURANCEGROUP, US
    205.134.128.0/24              205.134.128.0/19
    205.134.132.0/23              205.134.128.0/19
    205.134.158.0/24              205.134.128.0/19

Whois Entry

whois: 402603

IANA has recorded AS19043 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS19043\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:       19043
             ASName:         ONEBEACONINSURANCEGROUP
             ASHandle:       AS19043
             RegDate:        2010-03-09
             Updated:        2018-03-22
             Ref:            https://rdap.arin.net/registry/autnum/19043
             
             
             OrgName:        OneBeacon Insurance Group LTD
             OrgId:          ONEBE-1
             Address:        150 Royall St.
             City:           Canton
             StateProv:      MA
             PostalCode:     02021
             Country:        US
             RegDate:        2009-03-18
             Updated:        2024-07-24
             Ref:            https://rdap.arin.net/registry/entity/ONEBE-1
             
             
             OrgTechHandle: TECHN1524-ARIN
             OrgTechName:   Technical Contact
             OrgTechPhone:  +1-781-332-8529 
             OrgTechEmail:  nrochman@intactinsurance.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/TECHN1524-ARIN
             
             OrgNOCHandle: CLITE1-ARIN
             OrgNOCName:   Clites, Michael 
             OrgNOCPhone:  +1-781-332-8817 
             OrgNOCEmail:  mclites@onebeacon.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/CLITE1-ARIN
             
             OrgTechHandle: CLITE1-ARIN
             OrgTechName:   Clites, Michael 
             OrgTechPhone:  +1-781-332-8817 
             OrgTechEmail:  mclites@onebeacon.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/CLITE1-ARIN
             
             OrgAbuseHandle: CLITE1-ARIN
             OrgAbuseName:   Clites, Michael 
             OrgAbusePhone:  +1-781-332-8817 
             OrgAbuseEmail:  mclites@onebeacon.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/CLITE1-ARIN
             
             OrgTechHandle: STEVE1111-ARIN
             OrgTechName:   Miller, Steven A
             OrgTechPhone:  +1-781-332-9090 
             OrgTechEmail:  samiller@intactinsurance.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/STEVE1111-ARIN
             
             RAbuseHandle: CLITE1-ARIN
             RAbuseName:   Clites, Michael 
             RAbusePhone:  +1-781-332-8817 
             RAbuseEmail:  mclites@onebeacon.com
             RAbuseRef:    https://rdap.arin.net/registry/entity/CLITE1-ARIN
             
             RTechHandle: CLITE1-ARIN
             RTechName:   Clites, Michael 
             RTechPhone:  +1-781-332-8817 
             RTechEmail:  mclites@onebeacon.com
             RTechRef:    https://rdap.arin.net/registry/entity/CLITE1-ARIN
             
             RNOCHandle: CLITE1-ARIN
             RNOCName:   Clites, Michael 
             RNOCPhone:  +1-781-332-8817 
             RNOCEmail:  mclites@onebeacon.com
             RNOCRef:    https://rdap.arin.net/registry/entity/CLITE1-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.
             #