Report for 21975

Name

LOOMISSAYLES - LOOMIS SAYLES & CO., LP, 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.

21975 LOOMISSAYLES - LOOMIS SAYLES & CO., LP, US

  Adjacency:     3  Upstream:     3  Downstream:     0
  Upstream Adjacent AS list
    AS174           COGENT-174 - Cogent Communications, LLC, US
    AS23132         CHARTER-23132-SOUTHERN-NEW-ENGLAND-C3 - Charter Communications LLC, US
    AS701           UUNET - Verizon Business, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
35184 AS21975        ORIGIN  Originate:       1024 /22.00  Transit:          0 /0.00  LOOMISSAYLES - LOOMIS SAYLES & CO., LP, 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       %
35956 AS21975       LOOMISSAYLES - LOOMIS SAYLES & CO., LP, US         4      0      0      4      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  63.104.155.0/24      4777 2516 701 21975    
  63.118.230.0/24      4777 2516 701 21975    
  65.196.54.0/24       4777 2516 701 21975    
  65.196.55.0/24       4777 2516 20115 23132 21975   

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

AS21975   4 More Specifics   4 Total Advertisements   LOOMISSAYLES - LOOMIS SAYLES & CO., LP, US
    63.104.155.0/24               63.64.0.0/10
    63.118.230.0/24               63.64.0.0/10
    65.196.54.0/24                65.192.0.0/11
    65.196.55.0/24                65.192.0.0/11

Whois Entry

whois: 402609

IANA has recorded AS21975 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS21975\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:       21975
             ASName:         LOOMISSAYLES
             ASHandle:       AS21975
             RegDate:        2011-10-20
             Updated:        2011-10-20
             Comment:        http://www.loomissayles.com
             Ref:            https://rdap.arin.net/registry/autnum/21975
             
             
             OrgName:        LOOMIS SAYLES & CO., LP
             OrgId:          LSL46
             Address:        1 FINANCIAL CENTER SUITE 26
             City:           Boston
             StateProv:      MA
             PostalCode:     02111
             Country:        US
             RegDate:        2010-07-27
             Updated:        2014-05-29
             Ref:            https://rdap.arin.net/registry/entity/LSL46
             
             
             OrgAbuseHandle: NETAD165-ARIN
             OrgAbuseName:   NetAdmin
             OrgAbusePhone:  +1-617-482-2450 
             OrgAbuseEmail:  network@loomissayles.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETAD165-ARIN
             
             OrgTechHandle: NETAD165-ARIN
             OrgTechName:   NetAdmin
             OrgTechPhone:  +1-617-482-2450 
             OrgTechEmail:  network@loomissayles.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/NETAD165-ARIN
             
             OrgNOCHandle: NETAD165-ARIN
             OrgNOCName:   NetAdmin
             OrgNOCPhone:  +1-617-482-2450 
             OrgNOCEmail:  network@loomissayles.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/NETAD165-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.
             #