Report for 40668

Name

FENWAL-INCORPORATED - Fenwal, Inc., 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.

40668 FENWAL-INCORPORATED - Fenwal, Inc., US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS33491         COMCAST-33491 - Comcast Cable Communications, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
49820 AS40668        ORIGIN  Originate:        512 /23.00  Transit:          0 /0.00  FENWAL-INCORPORATED - Fenwal, Inc., 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       %
22299 AS40668       FENWAL-INCORPORATED - Fenwal, Inc., US             2      2      1      1      1  50.00%


  Prefix               AS Path                              Aggregation Suggestion
  208.88.0.0/23        4777 2516 7922 33491 40668 40668 40668 40668 40668 + Announce - aggregate of 208.88.0.0/24 (4777 2516 7922 33491 40668 40668 40668 40668 40668) and 208.88.1.0/24 (4777 2516 7922 33491 40668 40668 40668 40668 40668)
  208.88.0.0/24        4777 2516 7922 33491 40668 40668 40668 40668 40668 - Withdrawn - aggregated with 208.88.1.0/24 (4777 2516 7922 33491 40668 40668 40668 40668 40668)
  208.88.1.0/24        4777 2516 7922 33491 40668 40668 40668 40668 40668 - Withdrawn - aggregated with 208.88.0.0/24 (4777 2516 7922 33491 40668 40668 40668 40668 40668)

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

AS40668   2 More Specifics   2 Total Advertisements   FENWAL-INCORPORATED - Fenwal, Inc., US
    208.88.0.0/24                 208.88.0.0/22
    208.88.1.0/24                 208.88.0.0/22

Whois Entry

whois: 402332

IANA has recorded AS40668 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS40668\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:       40668
             ASName:         FENWAL-INCORPORATED
             ASHandle:       AS40668
             RegDate:        2008-02-25
             Updated:        2012-02-24
             Ref:            https://rdap.arin.net/registry/autnum/40668
             
             
             OrgName:        Fenwal, Inc.
             OrgId:          FENWA-1
             Address:        3 Corporate Dr.
             City:           Lake Zurich
             StateProv:      IL
             PostalCode:     60060
             Country:        US
             RegDate:        2008-02-01
             Updated:        2025-01-13
             Ref:            https://rdap.arin.net/registry/entity/FENWA-1
             
             
             OrgAbuseHandle: INFRA23-ARIN
             OrgAbuseName:   Infrastructure Analyst
             OrgAbusePhone:  +1-847-550-2800 
             OrgAbuseEmail:  FDT_GI_Network@fresenius.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/INFRA23-ARIN
             
             OrgTechHandle: INFRA23-ARIN
             OrgTechName:   Infrastructure Analyst
             OrgTechPhone:  +1-847-550-2800 
             OrgTechEmail:  FDT_GI_Network@fresenius.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/INFRA23-ARIN
             
             RTechHandle: INFRA23-ARIN
             RTechName:   Infrastructure Analyst
             RTechPhone:  +1-847-550-2800 
             RTechEmail:  FDT_GI_Network@fresenius.com
             RTechRef:    https://rdap.arin.net/registry/entity/INFRA23-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.
             #