
20289 AS-ISGNOC, US
Adjacency: 2 Upstream: 2 Downstream: 0
Upstream Adjacent AS list
AS62943 AS62943-BLUEBIRD-NETWORK, US
AS30029 DOBSONTECHTTS, US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 24782 AS20289 ORIGIN Originate: 2048 /21.00 Transit: 0 /0.00 AS-ISGNOC, 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 % 10047 AS20289 AS-ISGNOC, US 8 6 2 4 4 50.00% Prefix AS Path Aggregation Suggestion 205.173.96.0/22 6939 62943 20289 20289 + Announce - aggregate of 205.173.96.0/23 (6939 62943 20289 20289) and 205.173.98.0/23 (6939 62943 20289 20289) 205.173.96.0/24 6939 62943 20289 20289 - Withdrawn - aggregated with 205.173.97.0/24 (6939 62943 20289 20289) 205.173.97.0/24 6939 62943 20289 20289 - Withdrawn - aggregated with 205.173.96.0/24 (6939 62943 20289 20289) 205.173.98.0/24 6939 62943 20289 20289 - Withdrawn - aggregated with 205.173.99.0/24 (6939 62943 20289 20289) 205.173.99.0/24 6939 62943 20289 20289 - Withdrawn - aggregated with 205.173.98.0/24 (6939 62943 20289 20289) 205.173.100.0/23 6939 62943 20289 20289 + Announce - aggregate of 205.173.100.0/24 (6939 62943 20289 20289) and 205.173.101.0/24 (6939 62943 20289 20289) 205.173.100.0/24 6939 62943 20289 20289 - Withdrawn - aggregated with 205.173.101.0/24 (6939 62943 20289 20289) 205.173.101.0/24 6939 62943 20289 20289 - Withdrawn - aggregated with 205.173.100.0/24 (6939 62943 20289 20289) 205.173.102.0/24 3257 30029 20289 205.173.103.0/24 6939 62943 20289 20289
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS20289 7 More Specifics 7 Total Advertisements AS-ISGNOC, US
205.173.96.0/24 205.173.96.0/21
205.173.97.0/24 205.173.96.0/21
205.173.98.0/24 205.173.96.0/21
205.173.99.0/24 205.173.96.0/21
205.173.100.0/24 205.173.96.0/21
205.173.101.0/24 205.173.96.0/21
205.173.103.0/24 205.173.96.0/21
205.173.102.0/24 205.173.96.0/21
Prefixes added and withdrawn by this origin AS in the past 7 days.
- 205.173.102.0/24 Withdrawn
whois: 402603
IANA has recorded AS20289 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS20289\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: 20289
ASName: AS-ISGNOC
ASHandle: AS20289
RegDate: 2007-12-27
Updated: 2012-02-24
Ref: https://rdap.arin.net/registry/autnum/20289
OrgName: ISG Technology
OrgId: ISGTE-1
Address: 112 S Lee St.
City: Clearwater
StateProv: KS
PostalCode: 67026
Country: US
RegDate: 2007-12-20
Updated: 2025-10-09
Comment: http://www.isgdatacenter.com
Ref: https://rdap.arin.net/registry/entity/ISGTE-1
ReferralServer: rwhois://rwhois.isgnoc.net:4321
OrgNOCHandle: NOM14-ARIN
OrgNOCName: Network Operations Manager
OrgNOCPhone: +1-913-219-1802
OrgNOCEmail: dcsupport@isgtech.com
OrgNOCRef: https://rdap.arin.net/registry/entity/NOM14-ARIN
OrgAbuseHandle: NOM14-ARIN
OrgAbuseName: Network Operations Manager
OrgAbusePhone: +1-913-219-1802
OrgAbuseEmail: dcsupport@isgtech.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/NOM14-ARIN
OrgTechHandle: NOM14-ARIN
OrgTechName: Network Operations Manager
OrgTechPhone: +1-913-219-1802
OrgTechEmail: dcsupport@isgtech.com
OrgTechRef: https://rdap.arin.net/registry/entity/NOM14-ARIN
OrgTechHandle: COITD-ARIN
OrgTechName: Coit, Dean
OrgTechPhone: +1-405-516-7475
OrgTechEmail: dcoit@isgtech.com
OrgTechRef: https://rdap.arin.net/registry/entity/COITD-ARIN
RNOCHandle: NOM14-ARIN
RNOCName: Network Operations Manager
RNOCPhone: +1-913-219-1802
RNOCEmail: dcsupport@isgtech.com
RNOCRef: https://rdap.arin.net/registry/entity/NOM14-ARIN
RTechHandle: NOM14-ARIN
RTechName: Network Operations Manager
RTechPhone: +1-913-219-1802
RTechEmail: dcsupport@isgtech.com
RTechRef: https://rdap.arin.net/registry/entity/NOM14-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/
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
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Found a referral to rwhois.isgnoc.net:4321.