Report for 19480

Name

CPL - CHICAGO PUBLIC LIBRARY, 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.

19480 CPL - CHICAGO PUBLIC LIBRARY, US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS6079          RCN-AS - RCN, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
48471 AS19480        ORIGIN  Originate:        512 /23.00  Transit:          0 /0.00  CPL - CHICAGO PUBLIC LIBRARY, 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       %
34725 AS19480       CPL - CHICAGO PUBLIC LIBRARY, US                   2      0      0      2      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  64.107.3.0/24        4777 2497 6079 19480   
  66.99.5.0/24         4777 2497 6079 19480   

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

AS19480   2 More Specifics   2 Total Advertisements   CPL - CHICAGO PUBLIC LIBRARY, US
    64.107.3.0/24                 64.107.0.0/16
    66.99.5.0/24                  66.99.0.0/16

Whois Entry

whois: 402332

IANA has recorded AS19480 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS19480\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:       19480
             ASName:         CPL
             ASHandle:       AS19480
             RegDate:        2011-02-04
             Updated:        2012-03-02
             Ref:            https://rdap.arin.net/registry/autnum/19480
             
             
             OrgName:        CHICAGO PUBLIC LIBRARY
             OrgId:          CHICA-52
             Address:        400 S STATE
             City:           CHGO
             StateProv:      IL
             PostalCode:     60605
             Country:        US
             RegDate:        2011-01-14
             Updated:        2011-09-24
             Ref:            https://rdap.arin.net/registry/entity/CHICA-52
             
             
             OrgAbuseHandle: ASU41-ARIN
             OrgAbuseName:   Suleiman, Adnan 
             OrgAbusePhone:  +1-312-747-4049 
             OrgAbuseEmail:  asuleima@chipublib.org
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ASU41-ARIN
             
             OrgTechHandle: ASU41-ARIN
             OrgTechName:   Suleiman, Adnan 
             OrgTechPhone:  +1-312-747-4049 
             OrgTechEmail:  asuleima@chipublib.org
             OrgTechRef:    https://rdap.arin.net/registry/entity/ASU41-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.
             #