Report for 19870

Name

CCSD - Cherry Creek School District #5, 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.

19870 CCSD - Cherry Creek School District #5, US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS6461          ZAYO-6461 - Zayo Bandwidth, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
7754  AS19870        ORIGIN  Originate:      16384 /18.00  Transit:          0 /0.00  CCSD - Cherry Creek School District #5, 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       %
15678 AS19870       CCSD - Cherry Creek School District #5, US         3      2      0      1      2  66.67%


  Prefix               AS Path                              Aggregation Suggestion
  166.113.0.0/19       4777 2497 6461 19870   
  166.113.0.0/20       4777 2497 6461 19870 - Withdrawn - matching aggregate 166.113.0.0/19 4777 2497 6461 19870
  166.113.16.0/20      4777 2497 6461 19870 - Withdrawn - matching aggregate 166.113.0.0/19 4777 2497 6461 19870

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

AS19870   2 More Specifics   3 Total Advertisements   CCSD - Cherry Creek School District #5, US
    166.113.0.0/20                166.113.0.0/19
    166.113.16.0/20               166.113.0.0/19

Whois Entry

whois: 402332

IANA has recorded AS19870 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS19870\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:       19870
             ASName:         CCSD
             ASHandle:       AS19870
             RegDate:        2012-06-19
             Updated:        2012-06-19
             Ref:            https://rdap.arin.net/registry/autnum/19870
             
             
             OrgName:        Cherry Creek School District #5
             OrgId:          CCSD-15
             Address:        4700 S. Yosemite
             City:           Englewood
             StateProv:      CO
             PostalCode:     80111
             Country:        US
             RegDate:        1993-12-13
             Updated:        2012-03-22
             Ref:            https://rdap.arin.net/registry/entity/CCSD-15
             
             
             OrgTechHandle: NETWO5001-ARIN
             OrgTechName:   Network Specialist
             OrgTechPhone:  +1-720-554-5551 
             OrgTechEmail:  sputlovis@cherrycreekschools.org
             OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO5001-ARIN
             
             OrgAbuseHandle: RM67-ARIN
             OrgAbuseName:   Maginn, Rich 
             OrgAbusePhone:  +1-303-486-4596 
             OrgAbuseEmail:  smassey@ccsd.k12.co.us
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/RM67-ARIN
             
             OrgTechHandle: CKN23-ARIN
             OrgTechName:   No, Contact Known
             OrgTechPhone:  +1-800-555-1234 
             OrgTechEmail:  nobody@example.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/CKN23-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.
             #