Report for 26321

Name

TSX-GROUP - TSX Inc., 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.

26321 TSX-GROUP - TSX Inc., CA

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS40332         MONTRE-AS - Montreal Exchange, CA

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
24550 AS26321        ORIGIN  Originate:       2048 /21.00  Transit:          0 /0.00  TSX-GROUP - TSX Inc., 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       %
21817 AS26321       TSX-GROUP - TSX Inc., CA                           7      2      1      6      1  14.29%


  Prefix               AS Path                              Aggregation Suggestion
  142.201.0.0/23       4777 2497 6461 40332 26321 + Announce - aggregate of 142.201.0.0/24 (4777 2497 6461 40332 26321) and 142.201.1.0/24 (4777 2497 6461 40332 26321)
  142.201.0.0/24       4777 2497 6461 40332 26321 - Withdrawn - aggregated with 142.201.1.0/24 (4777 2497 6461 40332 26321)
  142.201.1.0/24       4777 2497 6461 40332 26321 - Withdrawn - aggregated with 142.201.0.0/24 (4777 2497 6461 40332 26321)
  142.201.5.0/24       4777 2497 6461 40332 26321   
  142.201.8.0/24       4777 2497 6461 40332 26321   
  142.201.17.0/24      4777 2497 6461 40332 26321   
  198.22.102.0/24      4777 2497 6461 40332 26321   
  205.207.128.0/23     4777 2497 6461 40332 26321   

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

AS26321   5 More Specifics   7 Total Advertisements   TSX-GROUP - TSX Inc., CA
    142.201.0.0/24                142.201.0.0/16
    142.201.1.0/24                142.201.0.0/16
    142.201.5.0/24                142.201.0.0/16
    142.201.8.0/24                142.201.0.0/16
    142.201.17.0/24               142.201.0.0/16

Whois Entry

whois: 402603

IANA has recorded AS26321 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS26321\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:       26321
             ASName:         TSX-GROUP
             ASHandle:       AS26321
             RegDate:        2002-08-21
             Updated:        2019-07-04
             Ref:            https://rdap.arin.net/registry/autnum/26321
             
             
             OrgName:        TSX Inc.
             OrgId:          TSE
             Address:        300 - 100 Adelaide Street West
             City:           Toronto
             StateProv:      ON
             PostalCode:     M5H 1S3
             Country:        CA
             RegDate:        1992-08-31
             Updated:        2025-07-07
             Ref:            https://rdap.arin.net/registry/entity/TSE
             
             
             OrgDNSHandle: TGAPC-ARIN
             OrgDNSName:   TMX Group - ARIN Points of Contact
             OrgDNSPhone:  +1-514-295-8520 
             OrgDNSEmail:  arinpoc@tmx.com
             OrgDNSRef:    https://rdap.arin.net/registry/entity/TGAPC-ARIN
             
             OrgRoutingHandle: TGAPC-ARIN
             OrgRoutingName:   TMX Group - ARIN Points of Contact
             OrgRoutingPhone:  +1-514-295-8520 
             OrgRoutingEmail:  arinpoc@tmx.com
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/TGAPC-ARIN
             
             OrgTechHandle: TGAPC-ARIN
             OrgTechName:   TMX Group - ARIN Points of Contact
             OrgTechPhone:  +1-514-295-8520 
             OrgTechEmail:  arinpoc@tmx.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/TGAPC-ARIN
             
             OrgAbuseHandle: LINDS48-ARIN
             OrgAbuseName:   Lindsay, Shelley 
             OrgAbusePhone:  +1-416-947-4215 
             OrgAbuseEmail:  shelley.lindsay@tmx.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/LINDS48-ARIN
             
             OrgNOCHandle: TGAPC-ARIN
             OrgNOCName:   TMX Group - ARIN Points of Contact
             OrgNOCPhone:  +1-514-295-8520 
             OrgNOCEmail:  arinpoc@tmx.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/TGAPC-ARIN
             
             OrgAbuseHandle: TGAPC-ARIN
             OrgAbuseName:   TMX Group - ARIN Points of Contact
             OrgAbusePhone:  +1-514-295-8520 
             OrgAbuseEmail:  arinpoc@tmx.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/TGAPC-ARIN
             
             OrgTechHandle: LINDS48-ARIN
             OrgTechName:   Lindsay, Shelley 
             OrgTechPhone:  +1-416-947-4215 
             OrgTechEmail:  shelley.lindsay@tmx.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/LINDS48-ARIN
             
             RAbuseHandle: LINDS48-ARIN
             RAbuseName:   Lindsay, Shelley 
             RAbusePhone:  +1-416-947-4215 
             RAbuseEmail:  shelley.lindsay@tmx.com
             RAbuseRef:    https://rdap.arin.net/registry/entity/LINDS48-ARIN
             
             RTechHandle: LINDS48-ARIN
             RTechName:   Lindsay, Shelley 
             RTechPhone:  +1-416-947-4215 
             RTechEmail:  shelley.lindsay@tmx.com
             RTechRef:    https://rdap.arin.net/registry/entity/LINDS48-ARIN
             
             RNOCHandle: LINDS48-ARIN
             RNOCName:   Lindsay, Shelley 
             RNOCPhone:  +1-416-947-4215 
             RNOCEmail:  shelley.lindsay@tmx.com
             RNOCRef:    https://rdap.arin.net/registry/entity/LINDS48-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.
             #