ASN Lookup Tool

Rackspace Hosting rackspace.com US US 53 Routes

AS Data

AS27357

AS27357 – Rackspace Hosting

AS Number 27357
AS Name RACKSPACE
Organization Rackspace Hosting (racks-8)
Country US
Website rackspace.com
Number of IPv4 Routes 52
Number of IPv6 Routes 1
ASN type HOSTING
Registry ARIN
Date Allocated 2003-02-20

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IP Ranges

Route # IPs
173.203.184.94/32 1
104.130.160.0/19 8192
142.0.184.0/22 1024
65.61.152.0/24 256
173.203.128.0/18 16384
198.210.20.0/22 1024
104.239.224.0/20 4096
198.210.16.0/22 1024
159.135.64.0/20 4096
162.209.96.0/19 8192
69.20.0.0/17 32768
23.253.128.0/19 8192
74.205.0.0/19 8192
173.203.184.90/32 1
173.203.184.91/32 1
173.203.184.85/32 1
65.61.142.0/23 512
173.203.184.93/32 1
204.232.224.0/19 8192
146.20.0.0/16 65536
173.203.184.87/32 1
207.97.192.0/18 16384
209.0.201.0/24 256
204.232.128.0/18 16384
173.203.184.88/32 1
65.61.141.0/24 256
72.4.112.0/20 4096
65.61.186.0/23 512
173.203.184.84/32 1
65.61.146.0/23 512
204.232.141.24/32 1
104.130.120.0/22 1024
173.203.184.86/32 1
104.130.224.0/20 4096
159.135.254.0/24 256
192.68.40.0/24 256
173.203.184.89/32 1
172.99.64.0/19 8192
207.97.217.27/32 1
104.130.0.0/18 16384
64.27.64.70/32 1
173.204.89.0/24 256
64.27.64.71/32 1
162.242.224.0/19 8192
204.51.235.0/24 256
156.43.59.0/24 256
69.20.95.0/24 256
2001:4802::/32 ~79×10²⁷
162.242.192.0/19 8192
204.232.141.25/32 1
104.239.248.0/21 2048
104.239.160.0/19 8192
204.51.224.0/24 256

Raw Whois Response

#
# 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.
#


ASNumber:       27357
ASName:         RACKSPACE
ASHandle:       AS27357
RegDate:        2003-02-20
Updated:        2012-02-24
Ref:            https://rdap.arin.net/registry/autnum/27357



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:  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.
#

Parsed Whois Response

Peers

AS Number Description Country
AS396479 Mailgun Technologies Inc. US
AS12200 Rackspace Hosting US

Upstreams

AS Number Description Country
AS12200 Rackspace Hosting US

Downstreams

AS Number Description Country
AS396479 Mailgun Technologies Inc. US

Contacts

Email Contacts

hostmaster@rackspace.com chris.hansell@rackspace.com

Abuse Contacts

abuse@rackspace.com

Legacy Routes

198.210.16.0/21

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Frequently Asked Questions

ASN AS27357 is an Autonomous System Number used to identify a network for BGP internet routing.
AS27357 is listed under Rackspace Hosting.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.