1. All IP Ranges
  2. 173.0.0.0/8
  3. 173.203.0.0/16
  4. AS27357  | 173.203.128.0/18

173.203.128.0/18

AS27357  ·  Rackspace Hosting

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Summary

Country United States
Domain rackspace.com
ASN AS27357
Registry ARIN
ID RSCP-NET-4

WHOIS Details

NetHandle:      NET-173-203-0-0-1
OrgID:          RACKS-8
Parent:         NET-173-0-0-0-0
NetName:        RSCP-NET-4
NetRange:       173.203.0.0 - 173.203.255.255
NetType:        allocation
RegDate:        2009-10-02
Updated:        2012-02-24
Source:         ARIN


OrgID:          RACKS-8
OrgName:        Rackspace Hosting
CanAllocate:    
Street:         1718 Dry Creek Way
Street:         Ste 115
City:           San Antonio
State/Prov:     TX
Country:        US
PostalCode:     78259-1837
RegDate:        2010-03-29
Updated:        2025-01-31
OrgAdminHandle: IPADM17-ARIN
OrgTechHandle:  HANSE157-ARIN
OrgTechHandle:  IPADM17-ARIN
OrgTechHandle:  ZR9-ARIN
OrgAbuseHandle: ABUSE45-ARIN
OrgNOCHandle:   HANSE157-ARIN
Source:         ARIN


POCHandle:      ABUSE45-ARIN
IsRole:         Y
LastName:       Abuse Desk
FirstName:      
Street:         5000 Walzem Rd
City:           San Antonio
State/Prov:     TX
Country:        US
PostalCode:     78218
RegDate:        2002-09-25
Updated:        2025-09-29
OfficePhone:    +1-210-312-4000
Mailbox:        abuse@rackspace.com
Source:         ARIN


POCHandle:      IPADM17-ARIN
IsRole:         Y
LastName:       IPADMIN
FirstName:      
Street:         1718 Dry Creek Way 
Street:         Ste 115
City:           San Antonio
State/Prov:     TX
Country:        US
PostalCode:     78259-1837
RegDate:        2002-09-16
Updated:        2025-06-23
OfficePhone:    +1-210-312-4000
Mailbox:        hostmaster@rackspace.com
Source:         ARIN


POCHandle:      HANSE157-ARIN
IsRole:         N
LastName:       Hansell
FirstName:      Chris
Street:         1718 Dry Creek Way
City:           San Antonio
State/Prov:     TX
Country:        US
PostalCode:     78259
RegDate:        2015-09-11
Updated:        2025-05-06
OfficePhone:    +1-210-312-4000
Mailbox:        chris.hansell@rackspace.com
Mailbox:        hostmaster@rackspace.com
Source:         ARIN


POCHandle:      ZR9-ARIN
IsRole:         N
LastName:       Rackspace
FirstName:      com
Street:         5000 Walzem Rd
City:           San Antonio
State/Prov:     TX
Country:        US
PostalCode:     78218
RegDate:        2000-02-08
Updated:        2022-10-31
OfficePhone:    +1-210-312-4000
Mailbox:        hostmaster@rackspace.com
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 173.203.0.0/16

No nearby ranges found.

Hosted domains

There are 1,853 domain names hosted across 356 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
173.203.187.14 protecit.com 367
173.203.168.177 toolstoolstools.com 145
173.203.130.18 kidmail3000.info 111
173.203.177.186 jdogjunkremoval.com 98
173.203.172.173 koch-mit-pamperedchef.de 73
173.203.161.232 jaspercountytribune.com 31
173.203.147.2 hireme2.com 29
173.203.129.111 corporate-express.com 28
173.203.132.80 positiveoptionsltd.org.uk 23
173.203.187.182 myrackmail.com 23
173.203.152.49 americasbeer.com 22
173.203.139.188 veternscrisisline.org 21
173.203.158.79 benchmade.biz 20
173.203.129.50 greencroft-communities.com 19
173.203.155.137 holidayhills.org 19
173.203.149.160 scintegrity.net 19
173.203.133.108 greatfallshospital.com 18
173.203.187.184 fireequipmentspecialties.com 18
173.203.134.93 gous.guide 18
173.203.137.48 wesleyhall.com 16

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity
Read more

Pingable IPs

1,364 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
173.203.145.66 AS27357 Rackspace Hosting 0.48ms from Ashburn, US
173.203.131.74 AS27357 Rackspace Hosting 0.52ms from Ashburn, US
173.203.144.58 AS27357 Rackspace Hosting 0.55ms from Ashburn, US
173.203.182.178 AS27357 Rackspace Hosting 0.47ms from Ashburn, US
173.203.132.43 AS27357 Rackspace Hosting 0.45ms from Ashburn, US
173.203.190.1 AS27357 Rackspace Hosting 0.65ms from Ashburn, US
173.203.168.245 AS27357 Rackspace Hosting 0.47ms from Ashburn, US
173.203.141.201 AS27357 Rackspace Hosting 0.73ms from Ashburn, US
173.203.174.234 AS27357 Rackspace Hosting 0.55ms from Ashburn, US
173.203.180.130 AS27357 Rackspace Hosting 0.51ms from Ashburn, US
173.203.157.140 AS27357 Rackspace Hosting 0.42ms from Ashburn, US
173.203.161.10 AS27357 Rackspace Hosting 0.47ms from Ashburn, US
173.203.149.151 AS27357 Rackspace Hosting 0.76ms from Ashburn, US
173.203.171.226 AS27357 Rackspace Hosting 0.51ms from Ashburn, US
173.203.172.28 AS27357 Rackspace Hosting 0.49ms from Ashburn, US
173.203.130.252 AS27357 Rackspace Hosting 0.54ms from Ashburn, US
173.203.151.34 AS27357 Rackspace Hosting 0.51ms from Ashburn, US
173.203.189.43 AS27357 Rackspace Hosting 0.64ms from Ashburn, US
173.203.143.234 AS27357 Rackspace Hosting 0.39ms from Ashburn, US
173.203.186.201 AS27357 Rackspace Hosting 0.37ms from Ashburn, US
173.203.150.166 AS27357 Rackspace Hosting 0.43ms from Ashburn, US
173.203.165.218 AS27357 Rackspace Hosting 0.41ms from Ashburn, US
173.203.159.138 AS27357 Rackspace Hosting 0.51ms from Ashburn, US
173.203.129.182 AS27357 Rackspace Hosting 0.48ms from Ashburn, US
173.203.134.58 AS27357 Rackspace Hosting 0.57ms from Ashburn, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
188.142.86.226 AS1136 KPN B.V. 3.52ms from Amsterdam, NL
122.56.57.2 AS4648 Global-Gateway Internet 0.88ms from Auckland, NZ
117.232.63.210 AS9829 National Internet Backbone 9.74ms from Bengaluru, IN
192.148.235.2 AS600 OARnet 2.56ms from Columbus, US
50.206.170.226 AS7922 Comcast Cable Communications, LLC 1.30ms from Denver, US
85.131.64.2 AS16086 DNA Oyj 2.25ms from Helsinki, FI
41.22.145.194 AS29975 Vodacom 13.19ms from Johannesburg, ZA
115.244.56.2 AS55836 Reliance Jio Infocomm Limited 1.68ms from Kolkata, IN
43.252.37.130 AS45144 Net Onboard Sdn Bhd - Quality & Reliable Cloud Hosting Provider 0.29ms from Kuala Lumpur, MY
178.199.34.146 AS3303 Swisscom (Switzerland) Ltd 0.77ms from Lausanne, CH
79.169.36.98 AS2860 NOS COMUNICACOES, S.A. 7.10ms from Lisbon, PT
89.242.246.50 AS13285 TalkTalk Communications Limited 2.97ms from London, GB
151.249.65.242 AS57099 Boundless Networks Limited 0.32ms from London, GB
167.167.21.2 AS30012 Universal Music Group, INC. 1.12ms from Los Angeles, US
65.246.94.2 AS395650 Beacon Health Options, Inc 6.71ms from Los Angeles, US
103.16.168.130 AS55821 RADIUS TELECOMS, INC. 1.38ms from Manila, PH
41.212.21.98 AS15399 Wananchi Group (Kenya) Limited 4.53ms from Nairobi, KE
198.28.160.226 AS11272 C Spire Fiber 7.22ms from New Orleans, US
213.155.38.146 AS42908 ORIGINAL AS CZ-NORDICTELECOMREGIONAL 5.18ms from Prague, CZ
112.147.246.2 AS17858 LG POWERCOMM 2.50ms from Seoul, KR
125.181.238.18 AS17858 LG POWERCOMM 3.30ms from Seoul, KR
58.37.123.114 AS4812 China Telecom (Group) 3.48ms from Shanghai, CN
58.156.11.2 AS17506 ARTERIA Networks Corporation 1.29ms from Tokyo, JP
131.147.218.66 AS2527 Sony Network Communications Inc. 2.00ms from Tokyo, JP
182.123.80.242 AS4837 CHINA UNICOM China169 Backbone 3.71ms from Zhengzhou, CN

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$
traceroute -a -n -q1 173.203.186.80
traceroute to 173.203.186.80 (173.203.186.80): 64 hops max, 52 byte packets
1 [AS15169] 72.14.235.121 215.909 ms
2 *
3 *
4 [AS27357] 74.205.20.27 223.643 ms
5 [AS27357] 74.205.20.73 227.199 ms
6 [AS27357] 69.20.3.123 226.15 ms
7 [AS27357] 173.203.186.80 243.414 ms
Measurement taken from IPinfo ProbeNet in Singapore, SG
On

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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