158.203.0.0/16

AS2907 · Research Organization of Information and Systems, National Institute of Informatics

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Summary

Country	Japan
Domain	nic.ad.jp
ASN	AS2907
Registry	APNIC
ID	JPNIC-NET-JP-ERX

WHOIS Details

inetnum:        158.198.0.0 - 158.215.255.255
netname:        JPNIC-NET-JP-ERX
descr:          Japan Network Information Center
country:        JP
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
abuse-c:        AJ382-AP
status:         ALLOCATED PORTABLE
remarks:        JPNIC Allocation Block
remarks:        Authoritative information regarding assignments and
remarks:        allocations made from within this block can also be
remarks:        queried at whois.nic.ad.jp. To obtain an English
remarks:        output query whois -h whois.nic.ad.jp x.x.x.x/e
mnt-by:         APNIC-HM
mnt-lower:      MAINT-JPNIC
mnt-irt:        IRT-JPNIC-JP
last-modified:  2020-07-23T04:25:29Z
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 2024-11-27
mnt-by:         MAINT-JPNIC
last-modified:  2025-09-04T01:00:00Z
source:         APNIC

role:           ABUSE JPNICJP
country:        ZZ
address:        Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047, japan
phone:          +81-3-5297-2311
fax-no:         +81-3-5297-2312
e-mail:         hostmaster@nic.ad.jp
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
nic-hdl:        AJ382-AP
remarks:        Generated from irt object IRT-JPNIC-JP
remarks:        hostmaster@nic.ad.jp was validated on 2024-11-27
abuse-mailbox:  hostmaster@nic.ad.jp
mnt-by:         APNIC-ABUSE
last-modified:  2025-01-23T00:15:35Z
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

Nearby Ranges

BGP prefixes that overlap with 158.0.0.0/8

Range	ASN	Company	Num of IPs
158.36.0.0/14	AS224	Academic and research institutions,	262,144
158.252.0.0/15	AS16509	Amazon Data Services UAE	131,072
158.93.0.0/16	AS398060	Augusta University	65,536
158.145.0.0/16	AS3724	State of Alaska	65,536
158.70.0.0/16	AS26810	U.S. Dept. of Health and Human Services	65,536
158.154.0.0/16	AS270	National Aeronautics and Space Administration	65,536
158.72.0.0/16	AS26810	U.S. Dept. of Health and Human Services	65,536
158.141.0.0/16	AS16509	Amazon Technologies Inc.	65,536
158.149.0.0/16	AS2119	Oppland Fylkeskommune	65,536
158.142.0.0/16	AS36691	Colorado State University	65,536
158.67.0.0/16	AS21286	European Data Center	65,536
158.200.0.0/16	AS2522	Japan Network Information Center	65,536
158.91.0.0/16	AS210	Provo School District	65,536
158.74.0.0/16	AS26810	U.S. Dept. of Health and Human Services	65,536
158.110.0.0/16	AS137	Universita' degli Studi di Udine	65,536
158.109.0.0/16	AS13041	Xarxa Informatica de la	65,536
158.73.0.0/16	AS19050	U.S. Dept. of Health and Human Services	65,536
158.74.0.0/16	AS19050	U.S. Dept. of Health and Human Services	65,536
158.160.0.0/16	AS200350	Yandex.Cloud LLC	65,536
158.138.0.0/16	AS16509	Amazon.com, Inc.	65,536
158.65.0.0/16	AS29917	University System of New Hampshire	65,536
158.103.0.0/16	AS33170	Morgan State University	65,536
158.66.0.0/16	AS21111	Departament Gospodarki Cyfrowej	65,536
158.217.0.0/16	AS18276	Japan Network Information Center	65,536
158.147.0.0/16	AS243	L3Harris Technologies, Inc.	65,536
158.69.0.0/16	AS16276	OVH Hosting, Inc.	65,536
158.148.0.0/16	AS16232	Telecom Italia S.p.A.	65,536
158.161.0.0/16	AS133875	Brunei Shell Petroleum Company Sendirian Berhad	65,536
158.227.0.0/16	AS15488	Universidad del Pais Vasco / Euskal Herriko Unibertsitatea	65,536
158.64.0.0/16	AS2602	Reseau Teleinformatique de l'Education Nationale	65,536
158.114.0.0/16	AS1906	Northrop Grumman Corp.	65,536
158.150.0.0/16	AS2119	Kristiansand Kommune	65,536
158.52.0.0/16	AS11757	Whirlpool Corporation	65,536
158.6.0.0/16	AS1540	Headquarters, USAISC	65,536
158.221.0.0/16	AS16509	Amazon Technologies Inc.	65,536
158.100.0.0/16	AS16509	Amazon.com, Inc.	65,536
158.40.0.0/16	AS141468	Department of the Prime Minister and Cabinet	65,536
158.136.0.0/16	AS27405	University System of New Hampshire	65,536
158.89.0.0/16	AS38327	Woodside Energy Ltd	65,536
158.17.0.0/16	AS1540	Headquarters, USAISC	65,536
158.96.0.0/16	AS1226	California Department of Technology	65,536
158.151.0.0/16	AS16509	Amazon.com, Inc.	65,536
158.121.0.0/16	AS1968	University of Massachusetts at Boston	65,536
158.57.0.0/16	AS1932	Consolidated Edison Co. of New York, Inc.	65,536
158.251.0.0/16	AS16742	Universidad Catolica de Valparaiso	65,536
158.56.0.0/16	AS16509	Amazon.com, Inc.	65,536
158.7.0.0/16	AS1540	Headquarters, USAISC	65,536
158.16.0.0/16	AS1540	Headquarters, USAISC	65,536
158.111.0.0/16	AS13611	U.S. Center For Disease Control and Prevention	65,536
158.182.0.0/16	AS4605	Hong Kong Baptist University	65,536

Hosted domains

There are 7 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
158.203.31.145	ecom-plat.jp	6
158.203.31.242	info-bosai.jp	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

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Pingable IPs

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

IP Address	ASN	Details
158.203.29.18	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`2.67ms` from Tokyo, JP
158.203.1.254	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`2.62ms` from Tokyo, JP
158.203.31.97	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`2.60ms` from Tokyo, JP
158.203.12.250	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`2.63ms` from Tokyo, JP
158.203.239.254	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`2.55ms` from Tokyo, JP
158.203.2.254	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`2.48ms` 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
178.40.187.192	AS6855 Slovak Telekom, a.s.	`1.76ms` from Bratislava, SK
5.196.128.48	AS16276 OVH SAS	`0.07ms` from Gravelines, FR
43.135.63.176	AS132203 Tencent Building, Kejizhongyi Avenue	`0.47ms` from Hong Kong, HK
43.205.229.160	AS16509 Amazon.com, Inc.	`0.15ms` from Mumbai, IN
46.128.91.112	AS35244 Tele Columbus AG	`1.83ms` from Munich, DE
179.249.54.0	AS26615 TIM S/A	`1.37ms` from Novo Hamburgo, BR
122.197.89.224	AS9617 JCOM Co., Ltd.	`6.33ms` from Osaka, JP
187.94.172.144	AS28649 Desktop Sigmanet Comunicação Multimídia SA	`2.42ms` from Osasco, BR
80.212.129.16	AS2119 Telenor Norge AS	`10.41ms` from Oslo, NO
86.247.179.160	AS3215 Orange S.A.	`1.64ms` from Paris, FR
44.10.4.64	AS209864 Naive Network	`0.27ms` from Piscataway, US
188.142.82.240	AS1136 KPN B.V.	`5.75ms` from Amsterdam, NL
162.239.241.160	AS7018 AT&T Enterprises, LLC	`15.62ms` from Atlanta, US
35.162.95.240	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
135.224.38.0	AS8075 Microsoft Corporation	`0.48ms` from Chicago, US
27.12.244.224	AS4837 CHINA UNICOM China169 Backbone	`3.35ms` from Chongqing, CN
67.213.239.128	AS30432 STRATA NETWORKS	`6.58ms` from Denver, US
175.233.4.240	AS4766 Korea Telecom	`1.96ms` from Incheon, KR
125.112.7.128	AS4134 CHINANET-BACKBONE	`7.27ms` from Ningbo, CN
123.114.255.0	AS4808 China Unicom Beijing Province Network	`6.15ms` from Beijing, CN
2.245.12.128	AS6805 Telefonica Germany GmbH & Co.OHG	`4.33ms` from Berlin, DE
201.159.91.16	AS264927 Abenet Provedora de Acesso a Internet LTDA	`12.77ms` from Brasilia, BR
209.42.169.32	AS25645 Momentum Telecom, Inc.	`0.27ms` from Chicago, US
181.96.142.48	AS7303 Telecom Argentina S.A.	`1.31ms` from Cordoba, AR
94.9.100.224	AS5607 Sky UK Limited	`5.27ms` from Erith, GB

Traceroute

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

traceroute -a -n -q1 -m7 158.203.28.167

traceroute to 158.203.28.167 (158.203.28.167): 7 hops max, 52 byte packets

1 [AS15169] 142.251.241.125 131.976 ms

2 [AS15169] 108.170.231.102 130.748 ms

3 [] 210.173.176.94 131.855 ms

4 [AS2907] 150.99.8.44 133.559 ms

5 *

6 *

7 *

Measurement taken from

IPinfo ProbeNet in Mumbai, IN

On April 13th 2026

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.

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