103.171.16.0/23

AS55899 · irob Ltd.

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	Japan
Domain	irob.co.jp
ASN	AS55899
Registry	APNIC
ID	IROB

WHOIS Details

inetnum:        103.171.16.0 - 103.171.17.255
netname:        irob
descr:          irob Ltd.
descr:          4F Hanzomon MK Bldg, 1-8-1, Kojimachi, Chiyoda-ku Tokyo, 102-0083, Japan
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
remarks:        Email address for spam or abuse complaints : system@irob.co.jp
country:        JP
mnt-by:         MAINT-JPNIC
mnt-lower:      MAINT-JPNIC
mnt-irt:        IRT-JPNIC-JP
status:         ALLOCATED PORTABLE
last-modified:  2021-08-04T05:23:03Z
source:         APNIC

irt:            IRT-JPNIC-JP
address:        Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047, Japan
e-mail:         hostmaster@nic.ad.jp
abuse-mailbox:  hostmaster@nic.ad.jp
phone:          +81-3-5297-2311
fax-no:         +81-3-5297-2312
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
auth:           # Filtered
remarks:        hostmaster@nic.ad.jp was validated on 2020-07-23
mnt-by:         MAINT-JPNIC
last-modified:  2022-06-14T04:26:58Z
source:         APNIC

role:           Japan Network Information Center
address:        Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047, Japan
country:        JP
phone:          +81-3-5297-2311
fax-no:         +81-3-5297-2312
e-mail:         hostmaster@nic.ad.jp
admin-c:        JI13-AP
tech-c:         JE53-AP
nic-hdl:        JNIC1-AP
mnt-by:         MAINT-JPNIC
last-modified:  2022-01-05T03:04:02Z
source:         APNIC

inetnum:        103.171.16.0 - 103.171.17.255
netname:        irob-CIDR-BLK-JP
descr:          irob Ltd.
remarks:        Email address for spam or abuse complaints : system@irob.co.jp
country:        JP
admin-c:        JP00213792
tech-c:         JP00213792
remarks:        This information has been partially mirrored by APNIC from
remarks:        JPNIC. To obtain more specific information, please use the
remarks:        JPNIC WHOIS Gateway at
remarks:        http://www.nic.ad.jp/en/db/whois/en-gateway.html or
remarks:        whois.nic.ad.jp for WHOIS client. (The WHOIS client
remarks:        defaults to Japanese output, use the /e switch for English
remarks:        output)
last-modified:  2021-08-05T19:44:43Z
source:         JPNIC

Hosted domains

There are no domains currently hosted on this ASN.

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

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
162.210.244.7	AS397651 Sneaker Server, LLC	`0.48ms` from Ashburn, US
73.159.27.119	AS7922 Comcast Cable Communications, LLC	`9.62ms` from Boston, US
34.123.30.71	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
20.200.166.7	AS8075 Microsoft Corporation	`0.22ms` from Dongnae, KR
77.6.137.103	AS6805 Telefonica Germany GmbH & Co.OHG	`7.32ms` from Hamburg, DE
92.21.171.119	AS13285 TalkTalk Communications Limited	`6.16ms` from London, GB
86.129.36.87	AS2856 British Telecommunications PLC	`2.07ms` from London, GB
88.28.210.247	AS3352 TELEFONICA DE ESPANA S.A.U.	`19.05ms` from Madrid, ES
189.174.183.87	AS8151 UNINET	`16.92ms` from Miami, US
123.141.62.7	AS3786 LG DACOM Corporation	`3.18ms` from Seoul, KR
125.134.117.247	AS4766 Korea Telecom	`6.76ms` from Seoul, KR
115.44.80.119	AS17962 ShenZhen Topway Video Communication Co. Ltd	`6.07ms` from Shenzhen, CN
102.22.24.55	AS37350 Dimension Data Ltd	`0.42ms` from Accra, GH
186.2.198.87	AS23201 Telecel S.A.	`8.93ms` from Asuncion, PY
69.204.26.119	AS11351 Charter Communications Inc	`18.83ms` from Chicago, US
63.35.100.55	AS16509 Amazon.com, Inc.	`0.19ms` from Dublin, IE
163.142.6.167	AS17816 China Unicom IP network China169 Guangdong province	`5.37ms` from Guangzhou, CN
47.118.84.119	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`4.71ms` from Hangzhou, CN
205.154.125.199	AS398963 Long Beach Unified School District	`1.34ms` from Los Angeles, US
75.206.48.119	AS6167 Verizon Business	`12.99ms` from Miami, US
190.134.121.183	AS6057 Administracion Nacional de Telecomunicaciones	`3.35ms` from Montevideo, UY
70.176.213.39	AS22773 Cox Communications Inc.	`2.50ms` from Phoenix, US
156.47.70.215	AS14051 Consolidated Communications, Inc.	`4.91ms` from San Jose, US
175.252.102.39	AS4766 Korea Telecom	`1.42ms` from Seoul, KR
183.158.229.183	AS4134 CHINANET-BACKBONE	`6.17ms` from Shanghai, CN

Traceroute

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

traceroute -a -n -q1 -f5 -m9 103.171.17.35

traceroute to 103.171.17.35 (103.171.17.35): 9 hops max, 52 byte packets

5 [AS5580] 203.190.230.113 31.061 ms

6 [AS55900] 103.13.250.201 31.296 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Seoul, KR

On September 4th 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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales