
20133 CASS-COL - CASS INFORMATION SYSTEMS, US
Adjacency: 2 Upstream: 2 Downstream: 0
Upstream Adjacent AS list
AS10796 TWC-10796-MIDWEST - Charter Communications Inc, US
AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC, US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 59542 AS20133 ORIGIN Originate: 256 /24.00 Transit: 0 /0.00 CASS-COL - CASS INFORMATION SYSTEMS, 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 % 34953 AS20133 CASS-COL - CASS INFORMATION SYSTEMS, US 1 0 0 1 0 0.00% Prefix AS Path Aggregation Suggestion 12.109.109.0/24 4777 2497 7018 20133
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS20133 1 More Specifics 1 Total Advertisements CASS-COL - CASS INFORMATION SYSTEMS, US
12.109.109.0/24 12.0.0.0/8
whois: 402332
IANA has recorded AS20133 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS20133\n
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ASNumber: 20133
ASName: CASS-COL
ASHandle: AS20133
RegDate: 2001-03-28
Updated: 2012-03-02
Ref: https://rdap.arin.net/registry/autnum/20133
OrgName: CASS INFORMATION SYSTEMS
OrgId: CIS-88
Address: 13001 HOLLENBERG DR.
City: BRIDGETON
StateProv: MO
PostalCode: 63044
Country: US
RegDate: 1999-12-22
Updated: 2014-12-03
Ref: https://rdap.arin.net/registry/entity/CIS-88
OrgTechHandle: SM1227-ARIN
OrgTechName: Mullins, Sean
OrgTechPhone: +1-314-506-5921
OrgTechEmail: smullins@cassinfo.com
OrgTechRef: https://rdap.arin.net/registry/entity/SM1227-ARIN
OrgAbuseHandle: SM1227-ARIN
OrgAbuseName: Mullins, Sean
OrgAbusePhone: +1-314-506-5921
OrgAbuseEmail: smullins@cassinfo.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/SM1227-ARIN
RTechHandle: SM1227-ARIN
RTechName: Mullins, Sean
RTechPhone: +1-314-506-5921
RTechEmail: smullins@cassinfo.com
RTechRef: https://rdap.arin.net/registry/entity/SM1227-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.
#