
21557 CYB-BLK-1 - Cybernet Communications, Inc., US
Adjacency: 1 Upstream: 1 Downstream: 0
Upstream Adjacent AS list
AS6461 ZAYO-6461 - Zayo Bandwidth, US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 6501 AS21557 ORIGIN Originate: 21760 /17.59 Transit: 0 /0.00 CYB-BLK-1 - Cybernet Communications, Inc., 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 % 3852 AS21557 CYB-BLK-1 - Cybernet Communications, Inc., US 35 22 9 22 13 37.14% Prefix AS Path Aggregation Suggestion 23.128.104.0/23 4777 2497 6461 21557 21557 21557 23.128.104.0/23 4777 2497 6461 21557 + Announce - aggregate of 23.128.104.0/24 (4777 2497 6461 21557) and 23.128.105.0/24 (4777 2497 6461 21557) 23.128.104.0/24 4777 2497 6461 21557 - Withdrawn - aggregated with 23.128.105.0/24 (4777 2497 6461 21557) 23.128.105.0/24 4777 2497 6461 21557 - Withdrawn - aggregated with 23.128.104.0/24 (4777 2497 6461 21557) 64.15.208.0/20 4608 7575 6461 21557 21557 64.15.212.0/23 4777 2497 6461 21557 + Announce - aggregate of 64.15.212.0/24 (4777 2497 6461 21557) and 64.15.213.0/24 (4777 2497 6461 21557) 64.15.212.0/24 4777 2497 6461 21557 - Withdrawn - aggregated with 64.15.213.0/24 (4777 2497 6461 21557) 64.15.213.0/24 4777 2497 6461 21557 - Withdrawn - aggregated with 64.15.212.0/24 (4777 2497 6461 21557) 64.15.215.0/24 4777 2497 6461 21557 64.15.218.0/24 4777 2497 6461 21557 64.15.221.0/24 4777 2497 6461 21557 64.15.222.0/23 4777 2497 6461 21557 + Announce - aggregate of 64.15.222.0/24 (4777 2497 6461 21557) and 64.15.223.0/24 (4777 2497 6461 21557) 64.15.222.0/24 4777 2497 6461 21557 - Withdrawn - aggregated with 64.15.223.0/24 (4777 2497 6461 21557) 64.15.223.0/24 4777 2497 6461 21557 - Withdrawn - aggregated with 64.15.222.0/24 (4777 2497 6461 21557) 75.127.48.0/20 4608 7575 6461 21557 21557 75.127.48.0/23 4777 2497 6461 21557 + Announce - aggregate of 75.127.48.0/24 (4777 2497 6461 21557) and 75.127.49.0/24 (4777 2497 6461 21557) 75.127.48.0/24 4777 2497 6461 21557 - Withdrawn - aggregated with 75.127.49.0/24 (4777 2497 6461 21557) 75.127.49.0/24 4777 2497 6461 21557 - Withdrawn - aggregated with 75.127.48.0/24 (4777 2497 6461 21557) 75.127.51.0/24 4777 2497 6461 21557 75.127.52.0/23 4777 2497 6461 21557 + Announce - aggregate of 75.127.52.0/24 (4777 2497 6461 21557) and 75.127.53.0/24 (4777 2497 6461 21557) 75.127.52.0/24 4777 2497 6461 21557 - Withdrawn - aggregated with 75.127.53.0/24 (4777 2497 6461 21557) 75.127.53.0/24 4777 2497 6461 21557 - Withdrawn - aggregated with 75.127.52.0/24 (4777 2497 6461 21557) 75.127.54.0/24 4777 2497 6461 21557 75.127.57.0/24 4777 2497 6461 21557 75.127.61.0/24 4777 2497 6461 21557 75.127.62.0/23 4777 2497 6461 21557 + Announce - aggregate of 75.127.62.0/24 (4777 2497 6461 21557) and 75.127.63.0/24 (4777 2497 6461 21557) 75.127.62.0/24 4777 2497 6461 21557 - Withdrawn - aggregated with 75.127.63.0/24 (4777 2497 6461 21557) 75.127.63.0/24 4777 2497 6461 21557 - Withdrawn - aggregated with 75.127.62.0/24 (4777 2497 6461 21557) 104.218.188.0/22 4777 2497 6461 21557 21557 21557 104.218.188.0/22 4777 2497 6461 21557 + Announce - aggregate of 104.218.188.0/23 (4777 2497 6461 21557) and 104.218.190.0/23 (4777 2497 6461 21557) 104.218.188.0/24 4777 2497 6461 21557 - Withdrawn - aggregated with 104.218.189.0/24 (4777 2497 6461 21557) 104.218.189.0/24 4777 2497 6461 21557 - Withdrawn - aggregated with 104.218.188.0/24 (4777 2497 6461 21557) 104.218.190.0/24 4777 2497 6461 21557 - Withdrawn - aggregated with 104.218.191.0/24 (4777 2497 6461 21557) 104.218.191.0/24 4777 2497 6461 21557 - Withdrawn - aggregated with 104.218.190.0/24 (4777 2497 6461 21557) 147.92.120.0/21 4777 2497 6461 21557 21557 21557 147.92.120.0/21 4777 2497 6461 21557 + Announce - aggregate of 147.92.120.0/22 (4777 2497 6461 21557) and 147.92.124.0/22 (4777 2497 6461 21557) 147.92.120.0/22 4777 2497 6461 21557 - Withdrawn - aggregated with 147.92.124.0/22 (4777 2497 6461 21557) 147.92.124.0/22 4777 2497 6461 21557 - Withdrawn - aggregated with 147.92.120.0/22 (4777 2497 6461 21557) 162.219.200.0/22 4608 7575 6461 21557 21557 162.219.200.0/22 4777 2497 6461 21557 + Announce - aggregate of 162.219.200.0/23 (4777 2497 6461 21557) and 162.219.202.0/23 (4777 2497 6461 21557) 162.219.200.0/24 4777 2497 6461 21557 - Withdrawn - aggregated with 162.219.201.0/24 (4777 2497 6461 21557) 162.219.201.0/24 4777 2497 6461 21557 - Withdrawn - aggregated with 162.219.200.0/24 (4777 2497 6461 21557) 162.219.202.0/24 4777 2497 6461 21557 - Withdrawn - aggregated with 162.219.203.0/24 (4777 2497 6461 21557) 162.219.203.0/24 4777 2497 6461 21557 - Withdrawn - aggregated with 162.219.202.0/24 (4777 2497 6461 21557)
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS21557 27 More Specifics 35 Total Advertisements CYB-BLK-1 - Cybernet Communications, Inc., US
64.15.212.0/24 64.15.208.0/20
64.15.213.0/24 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
64.15.221.0/24 64.15.208.0/20
64.15.222.0/24 64.15.208.0/20
64.15.223.0/24 64.15.208.0/20
75.127.48.0/24 75.127.48.0/20
75.127.49.0/24 75.127.48.0/20
75.127.51.0/24 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
75.127.57.0/24 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
162.219.200.0/24 162.219.200.0/22
162.219.201.0/24 162.219.200.0/22
162.219.202.0/24 162.219.200.0/22
162.219.203.0/24 162.219.200.0/22
whois: 402332
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/
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# If you see inaccuracies in the results, please report at
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
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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
OrgTechHandle: ADMIN2766-ARIN
OrgTechName: ADMINISTRATOR
OrgTechPhone: +1-310-828-9900
OrgTechEmail: ne@infonetworks.com
OrgTechRef: https://rdap.arin.net/registry/entity/ADMIN2766-ARIN
OrgNOCHandle: ADMIN2766-ARIN
OrgNOCName: ADMINISTRATOR
OrgNOCPhone: +1-310-828-9900
OrgNOCEmail: ne@infonetworks.com
OrgNOCRef: https://rdap.arin.net/registry/entity/ADMIN2766-ARIN
OrgAbuseHandle: BHA263-ARIN
OrgAbuseName: Hakimi, Bruce
OrgAbusePhone: +1-310-828-2288
OrgAbuseEmail: bruce@cybernetcom.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/BHA263-ARIN
OrgTechHandle: BHA263-ARIN
OrgTechName: Hakimi, Bruce
OrgTechPhone: +1-310-828-2288
OrgTechEmail: bruce@cybernetcom.com
OrgTechRef: https://rdap.arin.net/registry/entity/BHA263-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: 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.
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