163.140.0.0/16

AS2497 · Internet Initiative Japan Inc.

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Summary

Country	Japan
Domain	iij.ad.jp
ASN	AS2497
Registry	JPNIC
ID	IIJ-CIDR-BLK-JP

WHOIS Details

inetnum:        163.140.0.0 - 163.140.255.255
netname:        IIJ-CIDR-BLK-JP
descr:          Internet Initiative Japan Inc.
remarks:        Email address for spam or abuse complaints : [email protected]
country:        JP
admin-c:        JP00010080
tech-c:         JP00010080
last-modified:  2021-01-18T22:52:41Z
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)
source:         JPNIC

Nearby Ranges

BGP prefixes that overlap with 163.0.0.0/8

Range	ASN	Company	Num of IPs
163.54.0.0/16	AS2907	Aomori Public University	65,536
163.237.0.0/16	AS19255	Redwood Network Design	65,536
163.208.0.0/16	AS7502	Advanced Software Technology & Mechatronics ReseachInstitute of KYOTO	65,536
163.118.0.0/16	AS31967	Florida Institute of Technology	65,536
163.237.0.0/16	AS13331	Redwood Network Design	65,536
163.225.0.0/16	AS2907	Okayama Prefectural University	65,536
163.10.0.0/16	AS5692	Universidad Nacional de La Plata	65,536
163.239.0.0/16	AS3813	Sogang University	65,536
163.222.0.0/16	AS4766	Korea Telecom	65,536
163.161.0.0/16	AS8803	Migros-Genossenschafts-Bund	65,536
163.228.0.0/16	AS58593	Shanghai Blue Cloud Technology Co.,Ltd	65,536
163.6.0.0/16	AS210	Davis School District	65,536
163.40.0.0/16	AS226	LAC + USC Medical Center	65,536
163.142.0.0/16	AS136959	China Unicom Guangdong province network	65,536
163.229.0.0/16	AS4766	Korea Telecom	65,536
163.51.0.0/16	AS2907	Kindai University	65,536
163.2.0.0/16	AS2749	Navy Network Information Center (NNIC)	65,536
163.178.0.0/16	AS263683	Universidad de Costa Rica	65,536
163.215.0.0/16	AS2907	Tokyo University Of Technology	65,536
163.214.0.0/16	AS2907	Aichi-Gakuin University	65,536
163.42.0.0/16	AS2907	Geospatial Information Authority of Japan, Ministry of Land, Infrastructure, Transport and Tourism	65,536
163.226.0.0/16	AS2907	University Public Corporation Osaka	65,536
163.238.0.0/16	AS31822	City University of New York College of Staten Island	65,536
163.255.0.0/16	AS4766	Korea Telecom	65,536
163.208.0.0/16	AS37914	Advanced Software Technology & Mechatronics ReseachInstitute of KYOTO	65,536
163.41.0.0/16	AS3582	University of Oregon	65,536
163.177.0.0/16	AS136959	China Unicom Guangdong province network	65,536
163.45.0.0/16	AS131930	Tokyo Broadcasting System Television,Inc.	65,536
163.172.0.0/16	AS12876	Scaleway Dedibox - Paris, France	65,536
163.177.0.0/16	AS136958	China Unicom Guangdong province network	65,536
163.209.0.0/16	AS2907	Kagoshima University	65,536
163.213.0.0/16	AS4766	Korea Telecom	65,536
163.157.0.0/16	AS13063	SKF Dataservice AB	65,536
163.177.0.0/16	AS134543	China Unicom Guangdong province network	65,536
163.48.0.0/16	AS2516	KOBELCO SYSTEMS CORPORATION	65,536
163.210.0.0/16	AS2516	Hitachi Zosen Corporation	65,536
163.221.0.0/16	AS131158	Nara Institute of Science and Technology, National University Corporation	65,536
163.252.0.0/16	AS13977	Fidium	65,536
163.212.0.0/16	AS2907	Yokohama City University	65,536
163.34.0.0/16	AS207441	Norsk Hydro ASA	65,536
163.233.0.0/16	AS141400	Comcare	65,536
163.177.0.0/16	AS135061	China Unicom Guangdong province network	65,536
163.178.0.0/16	AS11830	Universidad de Costa Rica	65,536
163.167.0.0/16	AS786	London Metropolitan University	65,536
163.57.0.0/16	AS8075	Microsoft Singapore Pte. Ltd.	65,536
163.4.0.0/16	AS749	DoD Network Information Center	65,536
163.12.0.0/16	AS749	Navy Network Information Center (NNIC)	65,536
163.117.0.0/16	AS766	Universidad Carlos III de Madrid	65,536
163.1.0.0/16	AS786	Oxford University	65,536
163.173.0.0/16	AS2200	Conservatoire National des Arts et Metiers	65,536

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

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Pingable IPs

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

IP Address	ASN	Details
163.140.21.73	AS2497 Internet Initiative Japan Inc.	`29.36ms` from Tokyo, JP
163.140.92.33	AS2497 Internet Initiative Japan Inc.	`32.06ms` from Tokyo, JP
163.140.53.101	AS2497 Internet Initiative Japan Inc.	`43.06ms` from Tokyo, JP
163.140.35.182	AS2497 Internet Initiative Japan Inc.	`41.04ms` from Tokyo, JP
163.140.128.166	AS2497 Internet Initiative Japan Inc.	`50.16ms` from Tokyo, JP
163.140.108.142	AS2497 Internet Initiative Japan Inc.	`44.12ms` from Tokyo, JP
163.140.38.126	AS2497 Internet Initiative Japan Inc.	`38.17ms` from Tokyo, JP
163.140.19.235	AS2497 Internet Initiative Japan Inc.	`39.59ms` from Tokyo, JP
163.140.118.18	AS2497 Internet Initiative Japan Inc.	`35.01ms` from Tokyo, JP
163.140.9.173	AS2497 Internet Initiative Japan Inc.	`28.68ms` from Tokyo, JP
163.140.44.181	AS2497 Internet Initiative Japan Inc.	`402.31ms` from Siauliai, LT
163.140.125.177	AS2497 Internet Initiative Japan Inc.	`47.20ms` from Tokyo, JP
163.140.111.126	AS2497 Internet Initiative Japan Inc.	`35.67ms` from Tokyo, JP
163.140.29.178	AS2497 Internet Initiative Japan Inc.	`53.84ms` from Tokyo, JP
163.140.32.162	AS2497 Internet Initiative Japan Inc.	`28.55ms` from Tokyo, JP
163.140.6.7	AS2497 Internet Initiative Japan Inc.	`36.10ms` from Tokyo, JP
163.140.97.252	AS2497 Internet Initiative Japan Inc.	`291.67ms` from Christchurch, NZ
163.140.121.72	AS2497 Internet Initiative Japan Inc.	`37.24ms` from Tokyo, JP
163.140.20.72	AS2497 Internet Initiative Japan Inc.	`36.57ms` from Tokyo, JP
163.140.100.36	AS2497 Internet Initiative Japan Inc.	`34.73ms` from Tokyo, JP
163.140.101.19	AS2497 Internet Initiative Japan Inc.	`39.15ms` from Tokyo, JP
163.140.55.252	AS2497 Internet Initiative Japan Inc.	`36.43ms` from Tokyo, JP
163.140.86.26	AS2497 Internet Initiative Japan Inc.	`25.03ms` from Osaka, JP
163.140.33.202	AS2497 Internet Initiative Japan Inc.	`47.95ms` from Tokyo, JP
163.140.24.43	AS2497 Internet Initiative Japan Inc.	`28.11ms` from Tokyo, JP

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
106.61.33.224	AS4134 CHINANET-BACKBONE	`0.43ms` from Kunming, CN
76.93.31.64	AS20001 Charter Communications Inc	`5.37ms` from Los Angeles, US
23.197.252.192	AS16625 Akamai Technologies, Inc.	`0.42ms` from New York City, US
98.109.119.208	AS701 Verizon Business	`1.83ms` from New York City, US
80.141.130.128	AS3320 Deutsche Telekom AG	`8.49ms` from Nuernberg, DE
184.65.209.176	AS6327 Shaw Communications	`7.75ms` from Seattle, US
112.170.46.176	AS4766 Korea Telecom	`1.97ms` from Seoul, KR
101.254.141.208	AS23724 IDC, China Telecommunications Corporation	`2.89ms` from Tianjin, CN
126.47.7.64	AS17676 SoftBank Corp.	`4.55ms` from Tokyo, JP
188.63.101.32	AS3303 Swisscom (Switzerland) Ltd	`0.78ms` from Zuerich, CH
172.212.25.80	AS8075 Microsoft Corporation	`0.33ms` from Ashburn, US
20.51.18.0	AS8075 Microsoft Corporation	`0.34ms` from Boydton, US
113.247.189.80	AS4134 CHINANET-BACKBONE	`2.11ms` from Changsha, CN
182.68.201.48	AS24560 Bharti Airtel Ltd., Telemedia Services	`6.81ms` from Delhi, IN
196.37.47.64	AS3741 Dimension Data	`1.47ms` from Johannesburg, ZA
85.57.126.96	AS12479 Orange Espagne SA	`2.39ms` from Madrid, ES
183.138.221.192	AS4134 CHINANET-BACKBONE	`8.12ms` from Ningbo, CN
153.229.115.32	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.52ms` from Osaka, JP
50.16.241.192	AS14618 Amazon.com, Inc.	`0.23ms` from Reston, US
13.51.98.32	AS16509 Amazon.com, Inc.	`0.13ms` from Stockholm, SE
178.157.29.240	AS196755 Sewan Belgium SA	`1.94ms` from Brussels, BE
173.22.43.96	AS30036 Mediacom Communications Corp	`16.94ms` from Chicago, US
172.2.191.144	AS7018 AT&T Enterprises, LLC	`11.79ms` from Chicago, US
3.133.247.96	AS16509 Amazon.com, Inc.	`0.15ms` from Columbus, US
171.250.52.16	AS7552 Viettel Group	`1.73ms` from Ho Chi Minh City, VN

Traceroute

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

traceroute -a -n -q1 -f4 -m8 163.140.238.36

traceroute to 163.140.238.36 (163.140.238.36): 8 hops max, 52 byte packets

4 [] 210.173.176.219 5.077 ms

5 [AS2497] 58.138.101.93 1.316 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Tokyo, JP

On December 6th 2025

What are IP address ranges?

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