166.78.64.0/18

AS19994  ·  Rackspace Hosting

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Summary

Country United States
Domain rackspace.com
ASN AS19994
Registry ARIN
ID RACKS-8-NET-11

WHOIS Details

NetHandle:      NET-166-78-0-0-1
OrgID:          RACKS-8
Parent:         NET-166-0-0-0-0
NetName:        RACKS-8-NET-11
NetRange:       166.78.0.0 - 166.78.255.255
NetType:        allocation
RegDate:        2012-10-17
Updated:        2012-10-17
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:        [email protected]
Mailbox:        [email protected]
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:        [email protected]
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:        [email protected]
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:        [email protected]
Source:         ARIN

Nearby Ranges

BGP prefixes that overlap with 166.78.0.0/16

No nearby ranges found.

Hosted domains

There are 1,265 domain names hosted across 480 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
166.78.121.171 artofthiscentury.net 109
166.78.84.32 fmcg.com 47
166.78.106.43 burnhamcustomclosets.com 43
166.78.85.137 workfaceplanner.net 33
166.78.107.40 zeef.se 24
166.78.105.33 bestbronxabogado.com 22
166.78.90.149 larrypeiros.net 19
166.78.99.241 universalfurniture.com 18
166.78.109.173 scotty.engineer 18
166.78.85.5 farwestgc.net 16
166.78.104.254 infraestructurainteligente.com.mx 16
166.78.116.248 profilebrs.net 14
166.78.103.149 ontariobb.com 13
166.78.80.61 shuremics.com 13
166.78.102.42 lumiledsphilips.com 13
166.78.122.60 afattorneys.com 12
166.78.116.253 vbpmonitor.com 11
166.78.79.45 voin.net 10
166.78.126.48 samsbrandonseptic.com 10
166.78.95.129 distility.biz 9

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

Pingable IPs

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

IP Address ASN Details
166.78.73.5 AS19994 Rackspace Hosting 1.43ms from Chicago, US
166.78.91.157 AS19994 Rackspace Hosting 1.27ms from Chicago, US
166.78.114.130 AS19994 Rackspace Hosting 1.36ms from Chicago, US
166.78.75.31 AS19994 Rackspace Hosting 1.36ms from Chicago, US
166.78.126.199 AS19994 Rackspace Hosting 1.24ms from Chicago, US
166.78.118.36 AS19994 Rackspace Hosting 1.32ms from Chicago, US
166.78.84.93 AS19994 Rackspace Hosting 1.13ms from Chicago, US
166.78.80.115 AS19994 Rackspace Hosting 1.24ms from Chicago, US
166.78.82.222 AS19994 Rackspace Hosting 1.22ms from Chicago, US
166.78.125.3 AS19994 Rackspace Hosting 1.35ms from Chicago, US
166.78.85.252 AS19994 Rackspace Hosting 1.13ms from Chicago, US
166.78.117.83 AS19994 Rackspace Hosting 1.25ms from Chicago, US
166.78.74.10 AS19994 Rackspace Hosting 1.25ms from Chicago, US
166.78.81.252 AS19994 Rackspace Hosting 1.31ms from Chicago, US
166.78.78.47 AS19994 Rackspace Hosting 1.28ms from Chicago, US
166.78.96.2 AS19994 Rackspace Hosting 1.34ms from Chicago, US
166.78.112.127 AS19994 Rackspace Hosting 1.26ms from Chicago, US
166.78.97.1 AS19994 Rackspace Hosting 1.34ms from Chicago, US
166.78.83.24 AS19994 Rackspace Hosting 1.31ms from Chicago, US
166.78.111.75 AS19994 Rackspace Hosting 1.24ms from Chicago, US
166.78.66.132 AS19994 Rackspace Hosting 1.34ms from Chicago, US
166.78.104.238 AS19994 Rackspace Hosting 1.26ms from Chicago, US
166.78.107.62 AS19994 Rackspace Hosting 1.29ms from Chicago, US
166.78.106.52 AS19994 Rackspace Hosting 1.19ms from Chicago, US
166.78.89.89 AS19994 Rackspace Hosting 1.32ms from Chicago, 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
145.131.252.18 AS28685 Routit BV 2.54ms from Amsterdam, NL
93.240.220.18 AS3320 Deutsche Telekom AG 0.72ms from Frankfurt am Main, DE
91.154.144.2 AS719 Elisa Oyj 0.55ms from Helsinki, FI
45.199.37.210 AS134548 DXTL Tseung Kwan O Service 0.74ms from Hong Kong, HK
94.11.65.226 AS5607 Sky UK Limited 3.49ms from London, GB
45.112.122.82 AS47160 MOJI SAS 0.43ms from Paris, FR
54.241.125.226 AS16509 Amazon.com, Inc. 0.13ms from San Jose, US
124.138.145.194 AS38416 Gyeonggi Yeoncheon Office of Education 2.19ms from Seoul, KR
101.80.95.50 AS4812 China Telecom (Group) 2.40ms from Shanghai, CN
43.206.216.66 AS16509 Amazon.com, Inc. 0.17ms from Tokyo, JP
60.76.126.114 AS17676 SoftBank Corp. 2.59ms from Tokyo, JP
105.103.149.34 AS36947 Telecom Algeria 12.93ms from Algiers, DZ
91.205.213.2 AS61349 MaxiTEL Telecom B.V. 0.51ms from Amsterdam, NL
50.228.129.34 AS7922 Comcast Cable Communications, LLC 6.09ms from Ashburn, US
210.55.219.162 AS4771 Spark New Zealand Trading Ltd. 0.99ms from Auckland, NZ
100.21.149.66 AS16509 Amazon.com, Inc. 0.20ms from Boardman, US
62.251.231.2 AS6713 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM 3.38ms from Casablanca, MA
3.120.195.178 AS16509 Amazon.com, Inc. 0.18ms from Frankfurt am Main, DE
84.179.230.98 AS3320 Deutsche Telekom AG 1.78ms from Frankfurt am Main, DE
1.95.11.114 AS55990 Huawei Cloud Service data center 0.95ms from Guiyang, CN
185.46.220.130 AS31556 ARKADA-X Ltd. 3.38ms from Khmelnytskyi, UA
81.4.154.2 AS48623 CYPRUS Development Bank Limited 1.28ms from Larnaca, CY
81.168.45.2 AS8851 GCI Network Solutions Limited 4.09ms from London, GB
39.124.227.66 AS9318 SK Broadband Co Ltd 7.20ms from Seoul, KR
90.228.134.114 AS3301 Telia Company AB 0.54ms from Stockholm, SE

Traceroute

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

$
traceroute -a -n -q1 -f4 166.78.89.2
traceroute to 166.78.89.2 (166.78.89.2): 64 hops max, 52 byte packets
4 [AS3356] 4.2.118.110 51.874 ms
5 *
6 [AS19994] 50.56.6.165 51.862 ms
7 [AS19994] 50.56.6.129 51.672 ms
8 [AS19994] 161.47.11.107 51.713 ms
9 [AS19994] 166.78.89.2 52.08 ms
Measurement taken from IPinfo ProbeNet in Los Angeles, 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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