
19994 RACKSPACE - Rackspace Hosting, US
Adjacency: 2 Upstream: 1 Downstream: 1
Upstream Adjacent AS list
AS12200 RACKSPACE - Rackspace Hosting, US
Downstream Adjacent AS list
AS396479 MAILGUN-US - Mailgun Technologies Inc., US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 655 AS19994 ORG+TRN Originate: 537344 /12.96 Transit: 2560 /20.68 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 % 8594 AS19994 RACKSPACE - Rackspace Hosting, US 66 9 4 61 5 7.58% Prefix AS Path Aggregation Suggestion 23.253.0.0/18 4608 7575 1299 12200 19994 23.253.160.0/19 4608 7575 1299 12200 19994 23.253.192.0/19 4608 7575 1299 12200 19994 50.56.0.0/17 4608 7575 1299 12200 19994 50.57.0.0/17 4608 7575 1299 12200 19994 50.57.128.0/18 4608 7575 1299 12200 19994 50.57.192.0/19 4608 7575 1299 12200 19994 50.57.224.0/20 4608 7575 1299 12200 19994 64.49.232.0/23 4608 7575 1299 12200 19994 65.61.188.0/24 4608 7575 1299 12200 19994 66.216.116.0/23 4608 7575 1299 12200 19994 67.207.128.0/19 4777 2516 1299 12200 19994 69.170.128.0/20 4608 7575 1299 12200 19994 74.120.216.0/22 4777 2516 1299 12200 19994 74.200.192.0/18 4608 7575 1299 12200 19994 104.130.64.0/19 4608 7575 1299 12200 19994 + Announce - aggregate of 104.130.64.0/20 (4608 7575 1299 12200 19994) and 104.130.80.0/20 (4608 7575 1299 12200 19994) 104.130.64.0/20 4608 7575 1299 12200 19994 - Withdrawn - aggregated with 104.130.80.0/20 (4608 7575 1299 12200 19994) 104.130.80.0/20 4608 7575 1299 12200 19994 - Withdrawn - aggregated with 104.130.64.0/20 (4608 7575 1299 12200 19994) 104.130.96.0/20 4608 7575 1299 12200 19994 104.130.112.0/21 4608 7575 1299 12200 19994 104.130.192.0/19 4608 7575 1299 12200 19994 104.239.192.0/19 4608 7575 1299 12200 19994 108.166.0.0/18 4608 7575 1299 12200 19994 108.166.96.0/19 4608 7575 1299 12200 19994 108.171.160.0/20 4608 7575 1299 12200 19994 134.8.2.0/24 4777 2516 1299 12200 19994 146.88.100.0/22 4608 7575 1299 12200 19994 146.88.112.0/22 4608 7575 1299 12200 19994 146.88.120.0/22 4608 7575 1299 12200 19994 147.75.8.0/21 4608 7575 1299 12200 19994 + Announce - aggregate of 147.75.8.0/22 (4608 7575 1299 12200 19994) and 147.75.12.0/22 (4608 7575 1299 12200 19994) 147.75.8.0/22 4608 7575 1299 12200 19994 - Withdrawn - aggregated with 147.75.12.0/22 (4608 7575 1299 12200 19994) 147.75.12.0/22 4608 7575 1299 12200 19994 - Withdrawn - aggregated with 147.75.8.0/22 (4608 7575 1299 12200 19994) 161.47.0.0/16 4608 7575 1299 12200 19994 + Announce - aggregate of 161.47.0.0/17 (4608 7575 1299 12200 19994) and 161.47.128.0/17 (4608 7575 1299 12200 19994) 161.47.0.0/18 4608 7575 1299 12200 19994 - Withdrawn - aggregated with 161.47.64.0/18 (4608 7575 1299 12200 19994) 161.47.64.0/18 4608 7575 1299 12200 19994 - Withdrawn - aggregated with 161.47.0.0/18 (4608 7575 1299 12200 19994) 161.47.128.0/17 4608 7575 1299 12200 19994 - Withdrawn - aggregated with 161.47.0.0/17 (4608 7575 1299 12200 19994) 162.209.0.0/18 4608 7575 1299 12200 19994 162.209.80.0/20 4608 7575 1299 12200 19994 162.216.40.0/22 4608 7575 1299 12200 19994 162.242.160.0/19 4608 7575 1299 12200 19994 166.78.64.0/18 4608 7575 1299 12200 19994 166.78.192.0/18 4608 7575 1299 12200 19994 173.45.224.0/20 4608 7575 1299 12200 19994 173.45.240.0/21 4608 7575 1299 12200 19994 173.203.0.0/17 4777 2516 1299 12200 19994 184.106.0.0/19 4608 7575 1299 12200 19994 184.106.32.0/20 4608 7575 1299 12200 19994 184.106.48.0/22 4608 7575 1299 12200 19994 184.106.52.0/23 4608 7575 1299 12200 19994 184.106.54.0/24 4777 2516 1299 12200 19994 184.106.56.0/21 4608 7575 1299 12200 19994 184.106.64.0/18 4608 7575 1299 12200 19994 184.106.128.0/17 4608 7575 1299 12200 19994 192.237.128.0/18 4608 7575 1299 12200 19994 192.237.224.0/19 4608 7575 1299 12200 19994 198.61.128.0/18 4608 7575 1299 12200 19994 198.61.224.0/19 4608 7575 1299 12200 19994 198.101.128.0/18 4608 7575 1299 12200 19994 198.254.72.0/21 4608 7575 1299 12200 19994 199.180.184.0/22 4608 7575 1299 12200 19994 199.253.200.0/23 4608 7575 1299 12200 19994 + Announce - aggregate of 199.253.200.0/24 (4608 7575 1299 12200 19994) and 199.253.201.0/24 (4608 7575 1299 12200 19994) 199.253.200.0/24 4608 7575 1299 12200 19994 - Withdrawn - aggregated with 199.253.201.0/24 (4608 7575 1299 12200 19994) 199.253.201.0/24 4608 7575 1299 12200 19994 - Withdrawn - aggregated with 199.253.200.0/24 (4608 7575 1299 12200 19994) 204.9.188.0/24 4777 2516 1299 12200 19994 204.13.108.0/22 4608 7575 1299 12200 19994 204.51.170.0/24 4777 2516 1299 12200 19994 208.78.96.0/21 4608 7575 1299 12200 19994 209.20.64.0/19 4608 7575 1299 12200 19994 209.61.166.0/23 4608 7575 1299 12200 19994 216.18.148.0/22 4608 7575 1299 12200 19994
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS19994 43 More Specifics 66 Total Advertisements RACKSPACE - Rackspace Hosting, US
23.253.0.0/18 23.253.0.0/16
23.253.160.0/19 23.253.0.0/16
23.253.192.0/19 23.253.0.0/16
64.49.232.0/23 64.49.192.0/18
65.61.188.0/24 65.61.128.0/18
66.216.116.0/23 66.216.64.0/18
104.130.64.0/20 104.130.0.0/16
104.130.80.0/20 104.130.0.0/16
104.130.96.0/20 104.130.0.0/16
104.130.112.0/21 104.130.0.0/16
104.130.192.0/19 104.130.0.0/16
104.239.192.0/19 104.239.128.0/17
108.166.0.0/18 108.166.0.0/17
108.166.96.0/19 108.166.0.0/17
108.171.160.0/20 108.171.160.0/19
134.8.2.0/24 134.8.0.0/16
146.88.100.0/22 146.88.96.0/19
146.88.112.0/22 146.88.96.0/19
146.88.120.0/22 146.88.96.0/19
147.75.8.0/22 147.75.0.0/19
147.75.12.0/22 147.75.0.0/19
161.47.0.0/18 161.47.0.0/16
161.47.64.0/18 161.47.0.0/16
161.47.128.0/17 161.47.0.0/16
162.209.0.0/18 162.209.0.0/17
162.209.80.0/20 162.209.0.0/17
162.242.160.0/19 162.242.128.0/17
166.78.64.0/18 166.78.0.0/16
166.78.192.0/18 166.78.0.0/16
173.45.224.0/20 173.45.224.0/19
173.45.240.0/21 173.45.224.0/19
173.203.0.0/17 173.203.0.0/16
192.237.128.0/18 192.237.128.0/17
192.237.224.0/19 192.237.128.0/17
198.61.128.0/18 198.61.128.0/17
198.61.224.0/19 198.61.128.0/17
198.101.128.0/18 198.101.128.0/17
198.254.72.0/21 198.254.64.0/20
199.253.200.0/24 199.253.200.0/21
199.253.201.0/24 199.253.200.0/21
204.51.170.0/24 204.51.128.0/17
209.61.166.0/23 209.61.128.0/18
216.18.148.0/22 216.18.144.0/20
whois: 402603
IANA has recorded AS19994 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS19994\n
#
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# available at: https://www.arin.net/resources/registry/whois/tou/
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
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ASNumber: 19994
ASName: RACKSPACE
ASHandle: AS19994
RegDate: 2010-01-15
Updated: 2012-02-24
Ref: https://rdap.arin.net/registry/autnum/19994
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: 2025-01-31
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: chris.hansell@rackspace.com
OrgTechRef: https://rdap.arin.net/registry/entity/HANSE157-ARIN
OrgNOCHandle: HANSE157-ARIN
OrgNOCName: Hansell, Chris
OrgNOCPhone: +1-210-312-4000
OrgNOCEmail: chris.hansell@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
#
# 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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