Report for 109

Name

CISCOSYSTEMS - CISCO SYSTEMS, INC., 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 AS4637) 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.

109 CISCO-EU-109 Cisco Systems Global ASN - ARIN Assigned

  Adjacency:    11  Upstream:    10  Downstream:     1
  Upstream Adjacent AS list
    AS4637    REACH Reach Network Border AS
    AS9116    GOLDENLINES-ASN Golden Lines Main Autonomous System
    AS2914    NTT-COMMUNICATIONS-2914 - NTT America, Inc.
    AS1239    SPRINTLINK - Sprint
    AS7018    ATT-INTERNET4 - AT&T WorldNet Services
    AS701     UUNET - MCI Communications Services, Inc. d/b/a Verizon Business
    AS14745   INTERNAP-BLOCK-4 - Internap Network Services
    AS4657    STARHUBINTERNET-AS Starhub Internet, Singapore
    AS7132    SBIS-AS - AT&T Internet Services
    AS9498    BBIL-AP BHARTI BT INTERNET LTD.
  Downstream Adjacent AS list
    AS33207   CORNELL-PIAS1 - Cornell University

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
290   AS109    ORG+TRN Originate:     939264 /12.16  Transit:       1024 /22.00 CISCO-EU-109 Cisco Systems Global ASN - ARIN Assigned

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       %
 4320 AS109   CISCO-EU-109 Cisco Systems Global ASN -      43      1      0     42      1   2.33%


  Prefix               AS Path                              Aggregation Suggestion
  12.5.186.0/23        4637 3491 3561 7018 109   
  12.19.88.0/21        4637 3491 3561 7018 109   
  12.46.104.0/23       4637 3491 3561 7018 109   
  64.100.0.0/18        4637 3491 3561 1239 109   
  64.100.128.0/17      4637 3491 3561 1239 109   
  64.101.0.0/17        4637 7132 109          
  64.101.128.0/18      4637 7132 109          
  64.101.192.0/19      4637 3491 701 109      
  64.101.224.0/19      4637 7132 109          
  64.101.240.0/20      4637 3491 701 109      
  64.102.0.0/16        4637 3491 701 109      
  64.103.0.0/17        4637 3491 3561 1239 109   
  64.103.128.0/17      4637 7132 109          
  64.104.0.0/16        4637 7132 109          
  64.104.0.0/18        4637 3491 2914 109     
  64.104.64.0/19       4637 4657 109          
  64.104.96.0/19       4637 109               
  64.104.142.0/24      4637 7473 9498 109     
  64.104.160.0/19      4637 109               
  64.104.192.0/18      4637 109               
  72.163.0.0/16        4637 7132 109          
  72.163.224.0/19      4637 109               
  128.107.0.0/16       4637 7132 109          
  144.254.0.0/16       4637 3491 3561 1239 109   
  161.44.0.0/16        4637 3491 701 109      
  171.68.0.0/14        4637 7132 109          
  192.31.7.0/24        4637 7132 109          
  192.118.76.0/22      4637 1273 9116 9116 9116 9116 9116 109   
  192.122.173.0/24     4637 7132 109          
  192.122.174.0/24     4637 7132 109          
  192.133.190.0/23     4637 3549 14745 109    
  192.133.192.0/20     4637 3549 14745 109    
  192.133.208.0/24     4637 3549 14745 109    
  192.133.240.0/22     4637 3549 14745 109    
  192.135.239.0/24     4637 3491 3561 7018 109   
  192.135.240.0/21     4637 7132 109          
  192.135.250.0/24     4637 3491 701 109      
  198.92.0.0/18        4637 7132 109          
  198.133.219.0/24     4637 7132 109          
  198.135.0.0/21       4637 7132 109          
  198.135.4.0/22       4637 7132 109        - Withdrawn - matching aggregate 198.135.0.0/21 4637 7132 109
  204.69.198.0/23      4637 7132 109          
  204.69.200.0/24      4637 7132 109          

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

AS109   28 More Specifics   44 Total Advertisements   CISCO-EU-109 Cisco Systems Global ASN - ARIN Assigned
    12.5.186.0/23                 12.0.0.0/8
    12.19.88.0/21                 12.0.0.0/8
    12.46.104.0/23                12.0.0.0/8
    64.100.0.0/18                 64.100.0.0/14
    64.100.128.0/17               64.100.0.0/14
    64.101.0.0/17                 64.100.0.0/14
    64.101.128.0/18               64.100.0.0/14
    64.101.192.0/19               64.100.0.0/14
    64.101.224.0/19               64.100.0.0/14
    64.102.0.0/16                 64.100.0.0/14
    64.103.0.0/17                 64.100.0.0/14
    64.103.128.0/17               64.100.0.0/14
    64.104.0.0/18                 64.104.0.0/16
    64.104.64.0/19                64.104.0.0/16
    64.104.96.0/19                64.104.0.0/16
    64.104.142.0/24               64.104.0.0/16
    64.104.160.0/19               64.104.0.0/16
    64.104.192.0/18               64.104.0.0/16
    72.163.192.0/19               72.163.0.0/16
    72.163.216.0/21               72.163.0.0/16
    72.163.224.0/19               72.163.0.0/16
    192.133.190.0/23              192.133.160.0/19
    192.133.192.0/20              192.133.192.0/19
    192.133.208.0/24              192.133.192.0/19
    198.92.0.0/18                 198.92.0.0/14
    198.135.4.0/22                198.135.0.0/21
    204.69.198.0/23               204.69.198.0/22
    204.69.200.0/24               204.69.198.0/22

Whois Entry

whois: 402603

IANA has recorded AS109 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS109\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:       109
             ASName:         CISCOSYSTEMS
             ASHandle:       AS109
             RegDate:        1987-05-06
             Updated:        2023-09-12
             Ref:            https://rdap.arin.net/registry/autnum/109
             
             
             OrgName:        CISCO SYSTEMS, INC.
             OrgId:          CS-2831
             Address:        251 LITTLE FALLS DRIVE
             City:           WILMINGTON
             StateProv:      DE
             PostalCode:     19808
             Country:        US
             RegDate:        2023-06-07
             Updated:        2024-02-16
             Ref:            https://rdap.arin.net/registry/entity/CS-2831
             
             
             OrgNOCHandle: GATC-ARIN
             OrgNOCName:   GIS ARIN Technical Contact
             OrgNOCPhone:  +1-408-526-8888 
             OrgNOCEmail:  cidr-block-admins@cisco.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/GATC-ARIN
             
             OrgTechHandle: GATC-ARIN
             OrgTechName:   GIS ARIN Technical Contact
             OrgTechPhone:  +1-408-526-8888 
             OrgTechEmail:  cidr-block-admins@cisco.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/GATC-ARIN
             
             OrgAbuseHandle: CISCO6-ARIN
             OrgAbuseName:   Cisco CSIRT
             OrgAbusePhone:  +1-408-527-3227 
             OrgAbuseEmail:  csirt-notify@cisco.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/CISCO6-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.
             #