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:      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:      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:      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


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

Nearby Ranges

BGP prefixes that overlap with 173.203.0.0/16

No nearby ranges found.

Hosted domains

There are 1,863 domain names hosted across 357 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 davisconsultant.com 370
173.203.168.177 habrorfreighttools.com 145
173.203.130.18 university3000.ws 111
173.203.177.186 jdogjunkremoval.com 97
173.203.172.173 danielafortwingel-shop.de 73
173.203.161.232 huskiewire.com 31
173.203.147.2 convergencecarolinas.com 29
173.203.129.111 businessinteriorsbystaples.com 28
173.203.187.182 emailmyway.com 23
173.203.132.80 crisisprevention.biz 23
173.203.152.49 battleforthecrown.com 22
173.203.139.188 veteranscrisislne.org 21
173.203.158.79 benchmade.bz 20
173.203.129.50 greencroft-communities.org 19
173.203.149.160 sc-isac.net 19
173.203.155.137 privateclubmgmt.com 19
173.203.134.93 guideofus.net 18
173.203.187.184 cebayelsa.com 18
173.203.133.108 greatfallshospital.com 18
173.203.137.48 laneventureimages.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

1,387 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
173.203.150.167 AS27357 Rackspace Hosting 0.43ms from Ashburn, US
173.203.171.226 AS27357 Rackspace Hosting 0.54ms from Ashburn, US
173.203.141.201 AS27357 Rackspace Hosting 0.77ms from Ashburn, US
173.203.146.37 AS27357 Rackspace Hosting 0.40ms from Ashburn, US
173.203.154.61 AS27357 Rackspace Hosting 0.72ms from Ashburn, US
173.203.188.190 AS27357 Rackspace Hosting 0.50ms from Ashburn, US
173.203.162.125 AS27357 Rackspace Hosting 0.37ms from Ashburn, US
173.203.130.252 AS27357 Rackspace Hosting 0.48ms from Ashburn, US
173.203.137.43 AS27357 Rackspace Hosting 0.33ms from Ashburn, US
173.203.158.27 AS27357 Rackspace Hosting 0.48ms from Ashburn, US
173.203.156.203 AS27357 Rackspace Hosting 0.56ms from Ashburn, US
173.203.155.200 AS27357 Rackspace Hosting 0.48ms from Ashburn, US
173.203.179.9 AS27357 Rackspace Hosting 0.54ms from Ashburn, US
173.203.149.148 AS27357 Rackspace Hosting 0.68ms from Ashburn, US
173.203.142.253 AS27357 Rackspace Hosting 0.48ms from Ashburn, US
173.203.180.130 AS27357 Rackspace Hosting 0.46ms from Ashburn, US
173.203.148.20 AS27357 Rackspace Hosting 0.35ms from Ashburn, US
173.203.181.163 AS27357 Rackspace Hosting 0.53ms from Ashburn, US
173.203.172.0 AS27357 Rackspace Hosting 0.50ms from Ashburn, US
173.203.175.66 AS27357 Rackspace Hosting 0.46ms from Ashburn, US
173.203.166.14 AS27357 Rackspace Hosting 0.54ms from Ashburn, US
173.203.133.82 AS27357 Rackspace Hosting 0.46ms from Ashburn, US
173.203.144.59 AS27357 Rackspace Hosting 0.53ms from Ashburn, US
173.203.186.201 AS27357 Rackspace Hosting 0.35ms from Ashburn, US
173.203.178.62 AS27357 Rackspace Hosting 0.64ms 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
193.110.52.2 AS24652 Juniper Networks International B.V. 1.04ms from Amsterdam, NL
111.194.156.66 AS4808 China Unicom Beijing Province Network 3.20ms from Beijing, CN
91.82.134.50 AS20845 DIGI Tavkozlesi es Szolgaltato Kft. 4.11ms from Budapest, HU
200.26.225.226 AS269870 Giza S.A. 1.23ms from Buenos Aires, AR
162.155.148.2 AS10796 Charter Communications Inc 4.98ms from Columbus, US
109.59.202.82 AS44034 Hi3G Access AB 6.24ms from Copenhagen, DK
175.142.140.210 AS4788 TM TECHNOLOGY SERVICES SDN. BHD. 2.79ms from Kuala Lumpur, MY
52.253.191.226 AS8075 Microsoft Corporation 0.97ms from Lohogaon, IN
75.115.145.2 AS33363 Charter Communications, Inc 8.77ms from Orlando, US
97.101.179.50 AS33363 Charter Communications, Inc 5.73ms from Orlando, US
67.247.133.50 AS11351 Charter Communications Inc 19.07ms from Piscataway, US
54.234.116.178 AS14618 Amazon.com, Inc. 0.26ms from Reston, US
66.185.174.2 AS32429 ATA Engineering, Inc. 3.46ms from San Diego, US
66.244.30.242 AS23483 Shasta County Office of Education 9.70ms from San Jose, US
174.6.141.66 AS6327 Shaw Communications 7.42ms from Seattle, US
73.239.98.2 AS7922 Comcast Cable Communications, LLC 8.48ms from Seattle, US
123.254.239.66 AS38103 SK Broadband Co Ltd 1.70ms from Seoul, KR
80.216.241.210 AS1257 Tele2 Sverige AB 7.43ms from Stockholm, SE
78.133.139.242 AS12912 T-Mobile Polska S.A. 0.84ms from Warsaw, PL
54.214.119.130 AS16509 Amazon.com, Inc. 0.19ms from Boardman, US
188.25.117.2 AS8708 DIGI ROMANIA S.A. 0.93ms from Bucharest, RO
45.178.97.2 AS267899 Maria Jose Noguera(Maxinternet) 15.18ms from Buenos Aires, AR
156.193.159.114 AS8452 TE-AS 5.08ms from Cairo, EG
103.19.220.210 AS24088 Hanoi Telecom Joint Stock Company - HCMC Branch 0.78ms from Hanoi, VN
95.5.163.34 AS9121 Turk Telekomunikasyon Anonim Sirketi 19.80ms from Istanbul, TR

Traceroute

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

$
traceroute -a -n -q1 -f2 173.203.181.161
traceroute to 173.203.181.161 (173.203.181.161): 64 hops max, 52 byte packets
2 [AS917] 199.119.65.2 0.128 ms
3 *
4 [] 84.17.33.32 0.173 ms
5 *
6 [AS174] 154.54.93.102 0.704 ms
7 [AS174] 38.142.4.27 0.74 ms
8 *
9 [AS27357] 74.205.20.37 0.543 ms
10 [AS27357] 74.205.20.73 0.573 ms
Measurement taken from IPinfo ProbeNet in Ashburn, US
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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