Report for 394821

Name

TDSB - Toronto District School Board, 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.

394821 TDSB - Toronto District School Board, CA

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS21949         BEANFIELD - Beanfield Technologies Inc., CA

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
57446 AS394821       ORIGIN  Originate:        512 /23.00  Transit:          0 /0.00  TDSB - Toronto District School Board, 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       %
29815 AS394821      TDSB - Toronto District School Board, CA           2      2      1      1      1  50.00%


  Prefix               AS Path                              Aggregation Suggestion
  199.85.252.0/23      4608 7575 1299 21949 394821 + Announce - aggregate of 199.85.252.0/24 (4608 7575 1299 21949 394821) and 199.85.253.0/24 (4608 7575 1299 21949 394821)
  199.85.252.0/24      4608 7575 1299 21949 394821 - Withdrawn - aggregated with 199.85.253.0/24 (4608 7575 1299 21949 394821)
  199.85.253.0/24      4608 7575 1299 21949 394821 - Withdrawn - aggregated with 199.85.252.0/24 (4608 7575 1299 21949 394821)

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

AS394821   2 More Specifics   2 Total Advertisements   TDSB - Toronto District School Board, CA
    199.85.252.0/24               199.85.252.0/23
    199.85.253.0/24               199.85.252.0/23

Whois Entry

whois: 402609

IANA has recorded AS394821 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS394821\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:       394821
             ASName:         TDSB
             ASHandle:       AS394821
             RegDate:        2016-01-13
             Updated:        2016-01-13
             Ref:            https://rdap.arin.net/registry/autnum/394821
             
             
             OrgName:        Toronto District School Board
             OrgId:          TDSB-1
             Address:        5050 Yonge Street
             City:           Toronto
             StateProv:      ON
             PostalCode:     M2N 5N8
             Country:        CA
             RegDate:        2011-09-14
             Updated:        2026-05-19
             Ref:            https://rdap.arin.net/registry/entity/TDSB-1
             
             
             OrgAbuseHandle: ITSER14-ARIN
             OrgAbuseName:   IT Services
             OrgAbusePhone:  +1-416-396-5028 
             OrgAbuseEmail:  Xiaohong.Wu@tdsb.on.ca
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ITSER14-ARIN
             
             OrgTechHandle: ITSER14-ARIN
             OrgTechName:   IT Services
             OrgTechPhone:  +1-416-396-5028 
             OrgTechEmail:  Xiaohong.Wu@tdsb.on.ca
             OrgTechRef:    https://rdap.arin.net/registry/entity/ITSER14-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.
             #