Report for 19350

Name

CENTENNIALCOLLEGE - Centennial College, CA

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.

19350 CENTENNIALCOLLEGE - Centennial College, CA

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS26677         ORION-ASN - ORION, CA

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
23346 AS19350        ORIGIN  Originate:       2304 /20.83  Transit:          0 /0.00  CENTENNIALCOLLEGE - Centennial College, CA

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       %
12437 AS19350       CENTENNIALCOLLEGE - Centennial College, CA         9      6      3      6      3  33.33%


  Prefix               AS Path                              Aggregation Suggestion
  192.139.10.0/24      4777 2497 174 26677 19350   
  199.212.26.0/23      4777 2516 174 26677 19350 + Announce - aggregate of 199.212.26.0/24 (4777 2516 174 26677 19350) and 199.212.27.0/24 (4777 2516 174 26677 19350)
  199.212.26.0/24      4777 2516 174 26677 19350 - Withdrawn - aggregated with 199.212.27.0/24 (4777 2516 174 26677 19350)
  199.212.27.0/24      4777 2516 174 26677 19350 - Withdrawn - aggregated with 199.212.26.0/24 (4777 2516 174 26677 19350)
  199.212.30.0/24      4777 2497 174 26677 19350   
  199.212.37.0/24      4777 2516 174 26677 19350   
  199.212.38.0/23      4777 2516 174 26677 19350 + Announce - aggregate of 199.212.38.0/24 (4777 2516 174 26677 19350) and 199.212.39.0/24 (4777 2516 174 26677 19350)
  199.212.38.0/24      4777 2516 174 26677 19350 - Withdrawn - aggregated with 199.212.39.0/24 (4777 2516 174 26677 19350)
  199.212.39.0/24      4777 2516 174 26677 19350 - Withdrawn - aggregated with 199.212.38.0/24 (4777 2516 174 26677 19350)
  199.212.60.0/23      4777 2516 174 26677 19350 + Announce - aggregate of 199.212.60.0/24 (4777 2516 174 26677 19350) and 199.212.61.0/24 (4777 2516 174 26677 19350)
  199.212.60.0/24      4777 2516 174 26677 19350 - Withdrawn - aggregated with 199.212.61.0/24 (4777 2516 174 26677 19350)
  199.212.61.0/24      4777 2516 174 26677 19350 - Withdrawn - aggregated with 199.212.60.0/24 (4777 2516 174 26677 19350)

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

AS19350   6 More Specifics   9 Total Advertisements   CENTENNIALCOLLEGE - Centennial College, CA
    199.212.26.0/24               199.212.26.0/23
    199.212.27.0/24               199.212.26.0/23
    199.212.38.0/24               199.212.38.0/23
    199.212.39.0/24               199.212.38.0/23
    199.212.60.0/24               199.212.60.0/23
    199.212.61.0/24               199.212.60.0/23

Whois Entry

whois: 402332

IANA has recorded AS19350 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS19350\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:       19350
             ASName:         CENTENNIALCOLLEGE
             ASHandle:       AS19350
             RegDate:        2000-12-20
             Updated:        2024-07-26
             Ref:            https://rdap.arin.net/registry/autnum/19350
             
             
             OrgName:        Centennial College
             OrgId:          CENTEN-3
             Address:        941 Progress Avenue
             City:           Scarborough
             StateProv:      ON
             PostalCode:     M1K-5E9
             Country:        CA
             RegDate:        1994-03-23
             Updated:        2025-10-15
             Ref:            https://rdap.arin.net/registry/entity/CENTEN-3
             
             
             OrgTechHandle: CENTE74-ARIN
             OrgTechName:   Centennial-IP
             OrgTechPhone:  +1-416-289-5000 
             OrgTechEmail:  dnsadmin@centennialcollege.ca
             OrgTechRef:    https://rdap.arin.net/registry/entity/CENTE74-ARIN
             
             OrgAbuseHandle: CENTE74-ARIN
             OrgAbuseName:   Centennial-IP
             OrgAbusePhone:  +1-416-289-5000 
             OrgAbuseEmail:  dnsadmin@centennialcollege.ca
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/CENTE74-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.
             #