Report for 400523

Name

INTERSYSTEMS - InterSystems Corporation, 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.

400523 INTERSYSTEMS - InterSystems Corporation, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS6461          ZAYO-6461 - Zayo Bandwidth, US
    AS7018          ATT-INTERNET4 - AT&T Enterprises, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
32129 AS400523       ORIGIN  Originate:       1536 /21.42  Transit:          0 /0.00  INTERSYSTEMS - InterSystems Corporation, 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       %
20009 AS400523      INTERSYSTEMS - InterSystems Corporation, US        5      2      0      3      2  40.00%


  Prefix               AS Path                              Aggregation Suggestion
  64.6.36.0/23         4777 2497 7018 400523   
  64.6.36.0/24         4777 2497 7018 400523 - Withdrawn - matching aggregate 64.6.36.0/23 4777 2497 7018 400523
  64.6.37.0/24         4777 2497 7018 400523 - Withdrawn - matching aggregate 64.6.36.0/23 4777 2497 7018 400523
  128.177.43.0/24      4777 2497 6461 400523   
  208.185.132.0/24     4777 2497 6461 400523   

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

AS400523   4 More Specifics   5 Total Advertisements   INTERSYSTEMS - InterSystems Corporation, US
    64.6.36.0/24                  64.6.36.0/23
    64.6.37.0/24                  64.6.36.0/23
    128.177.43.0/24               128.177.0.0/16
    208.185.132.0/24              208.184.0.0/15

Whois Entry

whois: 402591

IANA has recorded AS400523 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS400523\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:       400523
             ASName:         INTERSYSTEMS
             ASHandle:       AS400523
             RegDate:        2023-09-21
             Updated:        2023-09-21
             Comment:        www.intersystems.com
             Ref:            https://rdap.arin.net/registry/autnum/400523
             
             
             OrgName:        InterSystems Corporation
             OrgId:          INTERS-5
             Address:        InterSystems Corporation
             Address:        One Congress Street
             City:           Boston
             StateProv:      MA
             PostalCode:     02114
             Country:        US
             RegDate:        1993-04-07
             Updated:        2025-04-04
             Ref:            https://rdap.arin.net/registry/entity/INTERS-5
             
             
             OrgTechHandle: CLARK1793-ARIN
             OrgTechName:   Clark, Anthony 
             OrgTechPhone:  +1-617-250-4442 
             OrgTechEmail:  aclark@intersystems.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/CLARK1793-ARIN
             
             OrgTechHandle: TECHS142-ARIN
             OrgTechName:   techs
             OrgTechPhone:  +1-617-621-0600 
             OrgTechEmail:  techs@intersystems.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/TECHS142-ARIN
             
             OrgAbuseHandle: TECHS142-ARIN
             OrgAbuseName:   techs
             OrgAbusePhone:  +1-617-621-0600 
             OrgAbuseEmail:  techs@intersystems.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/TECHS142-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.
             #