158.208.0.0/16

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 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

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

IP Address	ASN	Details
158.208.128.244	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`23.01ms` from Tokyo, JP
158.208.194.1	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`23.02ms` from Tokyo, JP
158.208.192.1	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`23.03ms` from Tokyo, JP
158.208.129.157	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`23.15ms` 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
20.42.96.224	AS8075 Microsoft Corporation	`0.44ms` from Ashburn, US
20.49.62.176	AS8075 Microsoft Corporation	`0.91ms` from Boydton, US
97.83.125.192	AS20115 Charter Communications LLC	`11.84ms` from Chicago, US
50.82.222.48	AS30036 Mediacom Communications Corp	`5.37ms` from Chicago, US
82.192.183.160	AS31027 GlobalConnect A/S	`0.38ms` from Copenhagen, DK
20.107.136.144	AS8075 Microsoft Corporation	`0.15ms` from Dublin, IE
209.38.207.128	AS14061 DigitalOcean, LLC	`0.37ms` from Frankfurt am Main, DE
175.125.222.0	AS9318 SK Broadband Co Ltd	`1.74ms` from Incheon, KR
162.211.134.240	AS55263 UnitedLex Corporation	`2.15ms` from Lincoln, US
35.174.139.224	AS14618 Amazon.com, Inc.	`0.42ms` from Reston, US
169.213.167.208	AS4766 Korea Telecom	`6.40ms` from Seoul, KR
211.34.42.80	AS4766 Korea Telecom	`1.96ms` from Seoul, KR
39.171.52.240	AS56041 China Mobile communications corporation	`7.17ms` from Shanghai, CN
85.194.55.208	AS1257 Tele2 Sverige AB	`5.40ms` from Stockholm, SE
52.140.200.160	AS8075 Microsoft Corporation	`0.18ms` from Tokyo, JP
75.27.3.192	AS7018 AT&T Enterprises, LLC	`6.36ms` from Chicago, US
84.129.5.64	AS3320 Deutsche Telekom AG	`5.36ms` from Düsseldorf, DE
83.228.236.80	AS29222 Infomaniak Network SA	`0.81ms` from Geneve, CH
79.223.222.208	AS3320 Deutsche Telekom AG	`3.19ms` from Hamburg, DE
122.37.64.64	AS17858 LG POWERCOMM	`1.80ms` from Incheon, KR
151.67.121.128	AS1267 WIND TRE S.P.A.	`5.81ms` from Milan, IT
95.220.110.32	AS12714 PJSC MegaFon	`1.99ms` from Moscow, RU
187.0.47.208	AS270589 Marcio Henrique Malaquias Junior	`14.54ms` from Osasco, BR
4.233.89.96	AS8075 Microsoft Corporation	`0.36ms` from Paris, FR
2.38.222.0	AS30722 Fastweb SpA	`8.34ms` from Rome, IT

Traceroute

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

traceroute -a -n -q1 -m5 158.208.46.170

traceroute to 158.208.46.170 (158.208.46.170): 5 hops max, 52 byte packets

1 [AS15169] 66.249.95.81 143.217 ms

2 [AS15169] 216.239.59.32 145.724 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Ashburn, US

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.

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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