
12200 RACKSPACE - Rackspace Hosting, US
Adjacency: 25 Upstream: 6 Downstream: 19
Upstream Adjacent AS list
AS6461 ZAYO-6461 - Zayo Bandwidth, US
AS174 COGENT-174 - Cogent Communications, LLC, US
AS1299 TWELVE99 - Arelion Sweden AB, SE
AS3356 LEVEL3 - Level 3 Parent, LLC, US
AS32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NETWORK - Akamai Technologies, Inc., US
AS4826 VOCUS-BACKBONE-AS - Vocus Connect International Backbone, AU
Downstream Adjacent AS list
AS14492 DATAPIPE - DataPipe, Inc., US
AS16805 DATAPIPE-MID - DataPipe, Inc., US
AS22576 DATAPIPE-ASN2 - DataPipe, Inc., US
AS24778 Datapipe-UK - Rackspace Ltd., GB
AS27357 RACKSPACE - Rackspace Hosting, US
AS398699 WCCE - Cisco Systems Inc, US
AS397012 OXYAHGC-01 - oXya Corporation, US
AS39921 DE-RACKSPACE - Rackspace Ltd., GB
AS54535 NIKEUS-NV - Nike, Inc., US
AS46202 MICHAELS-ATT-DS3 - Michaels Stores, Inc., US
AS33070 RMH-14 - Rackspace Hosting, US
AS19994 RACKSPACE - Rackspace Hosting, US
AS15395 RACKSPACE-LON - Rackspace Ltd., GB
AS213735 SK2 - Rackspace Germany GmbH, DE
AS213740 OSL1 - Rackspace Germany GmbH, DE
AS198220 GoGrid - Rackspace Ltd., GB
AS44009 SLEEK-ASN - Rackspace Ltd., GB
AS22205 DATAPIPE-SEA - DataPipe, Inc., US
AS58683 RACKSPACE-AS - Rackspace.com Sydney, HK
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 14253 AS12200 ORG+TRN Originate: 5632 /19.54 Transit: 2574080 /10.70 RACKSPACE - Rackspace Hosting, 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 % 20863 AS12200 RACKSPACE - Rackspace Hosting, US 11 2 1 10 1 9.09% Prefix AS Path Aggregation Suggestion 146.20.220.0/22 4777 2516 1299 12200 146.177.20.0/23 4777 32787 12200 + Announce - aggregate of 146.177.20.0/24 (4777 32787 12200) and 146.177.21.0/24 (4777 32787 12200) 146.177.20.0/24 4777 32787 12200 - Withdrawn - aggregated with 146.177.21.0/24 (4777 32787 12200) 146.177.21.0/24 4777 32787 12200 - Withdrawn - aggregated with 146.177.20.0/24 (4777 32787 12200) 146.177.56.0/24 4608 7575 3356 12200 146.177.74.0/24 4777 32787 12200 166.86.0.0/22 4777 2516 1299 12200 174.143.80.0/24 4608 7575 1299 12200 199.253.202.0/23 4777 2516 1299 12200 199.253.204.0/23 4608 7575 1299 12200 204.9.96.0/24 4608 7575 1299 12200 208.95.152.0/22 4777 2516 1299 12200
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS12200 11 More Specifics 11 Total Advertisements RACKSPACE - Rackspace Hosting, US
146.20.220.0/22 146.20.0.0/16
146.177.20.0/24 146.177.0.0/16
146.177.21.0/24 146.177.0.0/16
146.177.56.0/24 146.177.0.0/16
146.177.74.0/24 146.177.0.0/16
166.86.0.0/22 166.86.0.0/16
174.143.80.0/24 174.143.0.0/16
199.253.202.0/23 199.253.200.0/21
199.253.204.0/23 199.253.200.0/21
204.9.96.0/24 204.9.96.0/22
208.95.152.0/22 208.95.152.0/21
whois: 402609
IANA has recorded AS12200 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS12200\n
#
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
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ASNumber: 12200
ASName: RACKSPACE
ASHandle: AS12200
RegDate: 2007-05-16
Updated: 2013-04-09
Ref: https://rdap.arin.net/registry/autnum/12200
OrgName: Rackspace Hosting
OrgId: RACKS-8
Address: 1718 Dry Creek Way
Address: Ste 115
City: San Antonio
StateProv: TX
PostalCode: 78259-1837
Country: US
RegDate: 2010-03-29
Updated: 2026-06-10
Ref: https://rdap.arin.net/registry/entity/RACKS-8
OrgTechHandle: ZR9-ARIN
OrgTechName: Rackspace, com
OrgTechPhone: +1-210-312-4000
OrgTechEmail: hostmaster@rackspace.com
OrgTechRef: https://rdap.arin.net/registry/entity/ZR9-ARIN
OrgAbuseHandle: ABUSE45-ARIN
OrgAbuseName: Abuse Desk
OrgAbusePhone: +1-210-312-4000
OrgAbuseEmail: abuse@rackspace.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE45-ARIN
OrgTechHandle: HANSE157-ARIN
OrgTechName: Hansell, Chris
OrgTechPhone: +1-210-312-4000
OrgTechEmail: hostmaster@rackspace.com
OrgTechRef: https://rdap.arin.net/registry/entity/HANSE157-ARIN
OrgNOCHandle: HANSE157-ARIN
OrgNOCName: Hansell, Chris
OrgNOCPhone: +1-210-312-4000
OrgNOCEmail: hostmaster@rackspace.com
OrgNOCRef: https://rdap.arin.net/registry/entity/HANSE157-ARIN
OrgTechHandle: IPADM17-ARIN
OrgTechName: IPADMIN
OrgTechPhone: +1-210-312-4000
OrgTechEmail: hostmaster@rackspace.com
OrgTechRef: https://rdap.arin.net/registry/entity/IPADM17-ARIN
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#
# 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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