199.27.144.0/23

AS15228 · O'Reilly Media, Inc.

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Summary

Country	United States
Domain	oreilly.com
ASN	AS15228
Registry	ARIN
ID	OM-16

WHOIS Details

NetHandle:      NET-199-27-144-0-1
OrgID:          OM-16
Parent:         NET-199-0-0-0-0
NetName:        OM-16
NetRange:       199.27.144.0 - 199.27.147.255
NetType:        allocation
OriginAS:       15228
RegDate:        2015-01-21
Updated:        2021-12-14
Source:         ARIN


OrgID:          OM-16
OrgName:        O'Reilly Media, Inc.
CanAllocate:    
Street:         1005 Gravenstein Highway North
City:           Sebastopol
State/Prov:     CA
Country:        US
PostalCode:     95472
RegDate:        2012-03-02
Updated:        2018-08-27
OrgAdminHandle: DEANA2-ARIN
OrgTechHandle:  OREIL50-ARIN
OrgAbuseHandle: ABUSE7237-ARIN
OrgNOCHandle:   OREIL50-ARIN
Source:         ARIN


POCHandle:      OREIL50-ARIN
IsRole:         Y
LastName:       O'Reilly NOC
FirstName:      
Street:         1005 Gravenstein Hwy. N.
City:           Sebastopol
State/Prov:     CA
Country:        US
PostalCode:     95472
RegDate:        2018-08-27
Updated:        2023-09-19
OfficePhone:    +1-707-827-7000
Mailbox:        noc@oreilly.com
Source:         ARIN


POCHandle:      ABUSE7237-ARIN
IsRole:         Y
LastName:       Abuse
FirstName:      
Street:         1005 Gravenstein Hwy. N.
City:           Sebastopol
State/Prov:     CA
Country:        US
PostalCode:     95472
RegDate:        2018-08-27
Updated:        2023-09-19
OfficePhone:    +1-707-827-7000
Mailbox:        abuse@oreilly.com
Source:         ARIN


POCHandle:      DEANA2-ARIN
IsRole:         N
LastName:       Roman
FirstName:      Dean
Street:         1005 Gravenstein Hwy. N.
City:           Sebastopol
State/Prov:     CA
Country:        US
PostalCode:     95472
RegDate:        2011-03-02
Updated:        2023-09-19
OfficePhone:    +1-707-827-7104
FaxPhone:       +1-707-829-0104
Mailbox:        droman@oreilly.com
Source:         ARIN

Hosted domains

There are 38 domain names hosted across 6 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
199.27.144.186	oscon.com	34
199.27.144.187	androidopenconf.com	33
199.27.144.89	makemath.com	2
199.27.145.80	oreilly.review	1
199.27.144.47	oreillytunnels.com	1
199.27.145.81	oreilly.review	1

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

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

IP Address	ASN	Details
199.27.144.10	AS15228 O'Reilly Media, Inc.	`2.47ms` from San Jose, US
199.27.145.231	AS15228 O'Reilly Media, Inc.	`2.75ms` from San Jose, 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
114.254.53.7	AS4808 China Unicom Beijing Province Network	`3.68ms` from Beijing, CN
114.116.29.119	AS4808 China Unicom Beijing Province Network	`3.83ms` from Beijing, CN
78.92.196.7	AS5483 Magyar Telekom Plc.	`1.90ms` from Budapest, HU
76.112.171.119	AS7922 Comcast Cable Communications, LLC	`7.98ms` from Flint, US
116.100.6.151	AS24086 Viettel Corporation	`3.51ms` from Ho Chi Minh City, VN
175.147.22.119	AS4837 CHINA UNICOM China169 Backbone	`10.29ms` from Liaoyang, CN
17.59.246.71	AS714 Apple Inc.	`1.15ms` from Phoenix, US
20.106.82.215	AS8075 Microsoft Corporation	`0.32ms` from Phoenix, US
143.108.10.7	AS1251 FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO SÃO PAULO	`0.96ms` from Sao Paulo, BR
116.233.99.55	AS4812 China Telecom (Group)	`4.66ms` from Shanghai, CN
8.219.204.7	AS45102 Alibaba (US) Technology Co., Ltd.	`0.61ms` from Singapore, SG
110.116.64.23	AS56046 China Mobile communications corporation	`4.59ms` from Suzhou, CN
97.242.49.135	AS6167 Verizon Business	`11.44ms` from Chicago, US
24.14.45.135	AS7922 Comcast Cable Communications, LLC	`4.36ms` from Chicago, US
81.71.18.183	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.77ms` from Guangzhou, CN
182.245.88.183	AS4134 CHINANET-BACKBONE	`0.53ms` from Kunming, CN
175.163.145.55	AS4837 CHINA UNICOM China169 Backbone	`8.74ms` from Liaoyang, CN
109.70.149.135	AS25369 Hydra Communications Ltd	`0.39ms` from London, GB
47.148.93.55	AS5650 Frontier Communications of America, Inc.	`2.14ms` from Los Angeles, US
80.181.168.39	AS3269 Telecom Italia S.p.A.	`12.62ms` from Milan, IT
2.10.205.71	AS3215 Orange S.A.	`11.65ms` from Paris, FR
90.87.44.7	AS3215 Orange S.A.	`1.69ms` from Paris, FR
148.166.177.87	AS54973 Sacred Heart University	`8.25ms` from Providence, US
95.71.170.247	AS12389 PJSC Rostelecom	`14.65ms` from Samara, RU
223.195.92.103	AS4766 Korea Telecom	`1.61ms` from Seoul, KR

Traceroute

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

traceroute -a -n -q1 -f2 199.27.144.52

traceroute to 199.27.144.52 (199.27.144.52): 64 hops max, 52 byte packets

2 [] 91.200.241.88 0.29 ms

3 [AS3491] 206.223.116.35 0.358 ms

4 *

5 *

6 [AS46375] 157.131.209.74 8057.49 ms

7 *

8 *

9 *

10 [AS46375] 157.131.242.230 18 ms

11 [AS46375] 23.93.52.253 7.302 ms

12 [AS46375] 192.184.185.178 5.958 ms

13 [AS46375] 192.184.185.190 329.048 ms

14 [AS46375] 135.180.179.74 21.321 ms

15 [AS46375] 157.131.243.153 2.691 ms

16 [AS46375] 157.131.60.158 2.563 ms

17 [AS15228] 199.27.144.52 2.934 ms

Measurement taken from

IPinfo ProbeNet in San Jose, US

On August 28th 2025

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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