Report for 21557

Name

CYB-BLK-1 - Cybernet Communications, 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 AS6447) 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.

21557 CYB-BLK-1, US

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

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
6570  AS21557        ORIGIN  Originate:      21760 /17.59  Transit:          0 /0.00  CYB-BLK-1, 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       %
 4069 AS21557       CYB-BLK-1, US                                     35     22      9     22     13  37.14%


  Prefix               AS Path                              Aggregation Suggestion
  23.128.104.0/23      2497 6461 21557 21557 21557   
  23.128.104.0/23      2497 6461 21557      + Announce - aggregate of 23.128.104.0/24 (2497 6461 21557) and 23.128.105.0/24 (2497 6461 21557)
  23.128.104.0/24      2497 6461 21557      - Withdrawn - aggregated with 23.128.105.0/24 (2497 6461 21557)
  23.128.105.0/24      2497 6461 21557      - Withdrawn - aggregated with 23.128.104.0/24 (2497 6461 21557)
  64.15.208.0/20       2497 6461 21557 21557   
  64.15.212.0/23       2497 6461 21557      + Announce - aggregate of 64.15.212.0/24 (2497 6461 21557) and 64.15.213.0/24 (2497 6461 21557)
  64.15.212.0/24       2497 6461 21557      - Withdrawn - aggregated with 64.15.213.0/24 (2497 6461 21557)
  64.15.213.0/24       2497 6461 21557      - Withdrawn - aggregated with 64.15.212.0/24 (2497 6461 21557)
  64.15.215.0/24       2497 6461 21557        
  64.15.218.0/24       2497 6461 21557        
  64.15.221.0/24       2497 6461 21557        
  64.15.222.0/23       2497 6461 21557      + Announce - aggregate of 64.15.222.0/24 (2497 6461 21557) and 64.15.223.0/24 (2497 6461 21557)
  64.15.222.0/24       2497 6461 21557      - Withdrawn - aggregated with 64.15.223.0/24 (2497 6461 21557)
  64.15.223.0/24       2497 6461 21557      - Withdrawn - aggregated with 64.15.222.0/24 (2497 6461 21557)
  75.127.48.0/20       2497 6461 21557 21557   
  75.127.48.0/23       2497 6461 21557      + Announce - aggregate of 75.127.48.0/24 (2497 6461 21557) and 75.127.49.0/24 (2497 6461 21557)
  75.127.48.0/24       2497 6461 21557      - Withdrawn - aggregated with 75.127.49.0/24 (2497 6461 21557)
  75.127.49.0/24       2497 6461 21557      - Withdrawn - aggregated with 75.127.48.0/24 (2497 6461 21557)
  75.127.51.0/24       2497 6461 21557        
  75.127.52.0/23       2497 6461 21557      + Announce - aggregate of 75.127.52.0/24 (2497 6461 21557) and 75.127.53.0/24 (2497 6461 21557)
  75.127.52.0/24       2497 6461 21557      - Withdrawn - aggregated with 75.127.53.0/24 (2497 6461 21557)
  75.127.53.0/24       2497 6461 21557      - Withdrawn - aggregated with 75.127.52.0/24 (2497 6461 21557)
  75.127.54.0/24       2497 6461 21557        
  75.127.57.0/24       2497 6461 21557        
  75.127.61.0/24       2497 6461 21557        
  75.127.62.0/23       2497 6461 21557      + Announce - aggregate of 75.127.62.0/24 (2497 6461 21557) and 75.127.63.0/24 (2497 6461 21557)
  75.127.62.0/24       2497 6461 21557      - Withdrawn - aggregated with 75.127.63.0/24 (2497 6461 21557)
  75.127.63.0/24       2497 6461 21557      - Withdrawn - aggregated with 75.127.62.0/24 (2497 6461 21557)
  104.218.188.0/22     2497 6461 21557 21557 21557   
  104.218.188.0/22     2497 6461 21557      + Announce - aggregate of 104.218.188.0/23 (2497 6461 21557) and 104.218.190.0/23 (2497 6461 21557)
  104.218.188.0/24     2497 6461 21557      - Withdrawn - aggregated with 104.218.189.0/24 (2497 6461 21557)
  104.218.189.0/24     2497 6461 21557      - Withdrawn - aggregated with 104.218.188.0/24 (2497 6461 21557)
  104.218.190.0/24     2497 6461 21557      - Withdrawn - aggregated with 104.218.191.0/24 (2497 6461 21557)
  104.218.191.0/24     2497 6461 21557      - Withdrawn - aggregated with 104.218.190.0/24 (2497 6461 21557)
  147.92.120.0/21      2497 6461 21557 21557 21557   
  147.92.120.0/21      2497 6461 21557      + Announce - aggregate of 147.92.120.0/22 (2497 6461 21557) and 147.92.124.0/22 (2497 6461 21557)
  147.92.120.0/22      2497 6461 21557      - Withdrawn - aggregated with 147.92.124.0/22 (2497 6461 21557)
  147.92.124.0/22      2497 6461 21557      - Withdrawn - aggregated with 147.92.120.0/22 (2497 6461 21557)
  162.219.200.0/22     2497 6461 21557 21557   
  162.219.200.0/22     2497 6461 21557      + Announce - aggregate of 162.219.200.0/23 (2497 6461 21557) and 162.219.202.0/23 (2497 6461 21557)
  162.219.200.0/24     2497 6461 21557      - Withdrawn - aggregated with 162.219.201.0/24 (2497 6461 21557)
  162.219.201.0/24     2497 6461 21557      - Withdrawn - aggregated with 162.219.200.0/24 (2497 6461 21557)
  162.219.202.0/24     2497 6461 21557      - Withdrawn - aggregated with 162.219.203.0/24 (2497 6461 21557)
  162.219.203.0/24     2497 6461 21557      - Withdrawn - aggregated with 162.219.202.0/24 (2497 6461 21557)

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

AS21557   23 More Specifics   31 Total Advertisements   CYB-BLK-1, US
    64.15.212.0/24                64.15.208.0/20
    64.15.215.0/24                64.15.208.0/20
    64.15.218.0/24                64.15.208.0/20
    64.15.222.0/24                64.15.208.0/20
    75.127.48.0/24                75.127.48.0/20
    75.127.52.0/24                75.127.48.0/20
    75.127.53.0/24                75.127.48.0/20
    75.127.54.0/24                75.127.48.0/20
    75.127.61.0/24                75.127.48.0/20
    75.127.62.0/24                75.127.48.0/20
    75.127.63.0/24                75.127.48.0/20
    104.218.188.0/24              104.218.188.0/22
    104.218.189.0/24              104.218.188.0/22
    104.218.190.0/24              104.218.188.0/22
    104.218.191.0/24              104.218.188.0/22
    147.92.120.0/22               147.92.120.0/21
    147.92.124.0/22               147.92.120.0/21
    147.92.124.0/24               147.92.120.0/21
    147.92.125.0/24               147.92.120.0/21
    147.92.126.0/24               147.92.120.0/21
    147.92.127.0/24               147.92.120.0/21
    162.219.200.0/24              162.219.200.0/22
    162.219.202.0/24              162.219.200.0/22
    64.15.213.0/24                64.15.208.0/20
    64.15.221.0/24                64.15.208.0/20
    64.15.223.0/24                64.15.208.0/20
    75.127.49.0/24                75.127.48.0/20
    75.127.51.0/24                75.127.48.0/20
    75.127.57.0/24                75.127.48.0/20
    162.219.201.0/24              162.219.200.0/22
    162.219.203.0/24              162.219.200.0/22

Prefixes added and withdrawn by this origin AS in the past 7 days.

    + 147.92.124.0/24             Announced
    + 147.92.125.0/24             Announced
    + 147.92.126.0/24             Announced
    + 147.92.127.0/24             Announced
    - 64.15.213.0/24              Withdrawn
    - 64.15.221.0/24              Withdrawn
    - 64.15.223.0/24              Withdrawn
    - 75.127.49.0/24              Withdrawn
    - 75.127.51.0/24              Withdrawn
    - 75.127.57.0/24              Withdrawn
    - 162.219.201.0/24            Withdrawn
    - 162.219.203.0/24            Withdrawn

Whois Entry

whois: 402613

IANA has recorded AS21557 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS21557\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:       21557
             ASName:         CYB-BLK-1
             ASHandle:       AS21557
             RegDate:        2006-12-07
             Updated:        2012-03-02
             Comment:        http://www.cybernetcom.com
             Ref:            https://rdap.arin.net/registry/autnum/21557
             
             
             OrgName:        Cybernet Communications, Inc.
             OrgId:          CYBER-80
             Address:        7750 Gloria Ave
             City:           Van Nuys
             StateProv:      CA
             PostalCode:     91406
             Country:        US
             RegDate:        2006-08-30
             Updated:        2021-10-20
             Ref:            https://rdap.arin.net/registry/entity/CYBER-80
             
             
             OrgNOCHandle: ADMIN2766-ARIN
             OrgNOCName:   ADMINISTRATOR
             OrgNOCPhone:  +1-310-828-9900 
             OrgNOCEmail:  ne@infonetworks.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/ADMIN2766-ARIN
             
             OrgTechHandle: ADMIN2766-ARIN
             OrgTechName:   ADMINISTRATOR
             OrgTechPhone:  +1-310-828-9900 
             OrgTechEmail:  ne@infonetworks.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/ADMIN2766-ARIN
             
             OrgNOCHandle: HAKIM50-ARIN
             OrgNOCName:   Hakimi, Daniel 
             OrgNOCPhone:  +1-310-828-9900 
             OrgNOCEmail:  daniel.hakimi@cybernetcom.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/HAKIM50-ARIN
             
             OrgAbuseHandle: BHA263-ARIN
             OrgAbuseName:   Hakimi, Bruce 
             OrgAbusePhone:  +1-310-828-9900 
             OrgAbuseEmail:  bruce@cybernetcom.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/BHA263-ARIN
             
             OrgTechHandle: BHA263-ARIN
             OrgTechName:   Hakimi, Bruce 
             OrgTechPhone:  +1-310-828-9900 
             OrgTechEmail:  bruce@cybernetcom.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/BHA263-ARIN
             
             OrgAbuseHandle: ADMIN2766-ARIN
             OrgAbuseName:   ADMINISTRATOR
             OrgAbusePhone:  +1-310-828-9900 
             OrgAbuseEmail:  ne@infonetworks.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ADMIN2766-ARIN
             
             RTechHandle: CHA112-ARIN
             RTechName:   Hayden, Collin 
             RTechPhone:  +1-310-828-9900 
             RTechEmail:  collin@cybernetcom.com
             RTechRef:    https://rdap.arin.net/registry/entity/CHA112-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.
             #