157.63.0.0/16

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

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Summary

Country	Japan
Domain	ntu.ac.jp
ASN	AS2907
Registry	APNIC
ID	TUST-NET

WHOIS Details

inetnum:        157.63.0.0 - 157.63.255.255
netname:        TUST-NET
descr:          Teikyo University of Science
country:        JP
admin-c:        KH57-AP
tech-c:         KH57-AP
status:         ALLOCATED PORTABLE
mnt-irt:        IRT-JPNIC-JP
mnt-by:         MAINT-JPNIC
last-modified:  2013-06-19T01:40:01Z
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:         [email protected]
abuse-mailbox:  [email protected]
phone:          +81-3-5297-2311
fax-no:         +81-3-5297-2312
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2024-11-27
mnt-by:         MAINT-JPNIC
last-modified:  2025-09-04T01:00:00Z
source:         APNIC

person:         Kimiyasu Hagiwara
address:        The Nisi-Tokyo University Yassawa 2525, Uenohara-machi, Kitaturu-gun Yamanashi 409-01,
country:        JP
phone:          +81-554-63-4411 2723
e-mail:         [email protected]
nic-hdl:        KH57-AP
remarks:        ----------
remarks:        imported from ARIN object:
remarks:        
remarks:        poc-handle:  KH320-ARIN
remarks:        is-role:     N
remarks:        last-name:   Hagiwara
remarks:        first-name:  Kimiyasu
remarks:        street:      The Nisi-Tokyo University Yassawa 2525, Uenohara-machi, Kitaturu-gun Yamanashi 409-01,
remarks:        country:     JP
remarks:        mailbox:     [email protected]
remarks:        bus-phone:   +81-554-63-4411 2723
remarks:        reg-date:    1995-09-06
remarks:        changed:     [email protected] 19971018
remarks:        source:      ARIN
remarks:        
remarks:        ----------
notify:         [email protected]
mnt-by:         MNT-ERX-NISHITOKYOUNI-NON-JP
last-modified:  2008-09-04T07:29:35Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 157.0.0.0/8

Range	ASN	Company	Num of IPs
157.32.0.0/12	AS55836	Reliance Jio Infocomm Limited	1,048,576
157.48.0.0/14	AS55836	Reliance Jio Infocomm Limited	262,144
157.28.0.0/15	AS8968	Mediaset Com	131,072
157.80.0.0/16	AS2907	Ibaraki University	65,536
157.16.0.0/16	AS2907	University Public Corporation Osaka	65,536
157.6.0.0/16	AS2907	Fukui Prefectural University	65,536
157.102.0.0/16	AS2907	Teikyo University	65,536
157.105.0.0/16	AS2907	National University Corporation Tokyo Gakugei University	65,536
157.114.0.0/16	AS2907	Institue National Colleges of Technology, Japan	65,536
157.19.0.0/16	AS2907	National University Corporation Muroran Institute of Technology	65,536
157.90.0.0/16	AS24940	Hetzner Online GmbH	65,536
157.79.0.0/16	AS2514	TOSHIBA INFORMATION SYSTEMS(JAPAN) CORPORATION	65,536
157.159.0.0/16	AS2263	SCES COMMUNS IMT BUSINESS SCHOOL TELECOM SUD PARIS	65,536
157.122.0.0/16	AS17816	China Unicom Guangdong province network	65,536
157.61.0.0/16	AS17622	China Unicom Guangdong province network	65,536
157.255.0.0/16	AS17816	China Unicom Guangdong province network	65,536
157.233.0.0/16	AS20001	Val Verde Unified School District	65,536
157.175.0.0/16	AS16509	Amazon Data Services Bahrain	65,536
157.139.0.0/16	AS20252	Joan and Sanford I. Weill Medical College and Graduate School of Medical Sciences of Cornell University	65,536
157.82.0.0/16	AS2501	University of Tokyo	65,536
157.111.0.0/16	AS2907	National Institutes for Quantum and Radiological Science and Technology	65,536
157.1.0.0/16	AS2907	Research Organization of Information and Systems, National Institute of Informatics	65,536
157.148.0.0/16	AS17622	China Unicom Guangdong province network	65,536
157.142.0.0/16	AS16922	University of Oklahoma HSC	65,536
157.136.0.0/16	AS2200	Centre National de la Recherche Scientifique	65,536
157.249.0.0/16	AS224	Meteorologisk institutt, Oslo	65,536
157.188.0.0/16	AS22252	The City of New York	65,536
157.122.0.0/16	AS17622	China Unicom Guangdong province network	65,536
157.205.0.0/16	AS17514	Otsuka Corporation	65,536
157.210.0.0/16	AS16509	Amazon.com, Inc.	65,536
157.122.0.0/16	AS17623	China Unicom Guangdong province network	65,536
157.61.0.0/16	AS17623	China Unicom Guangdong province network	65,536
157.91.0.0/16	AS1767	Indiana Higher Education Telecommunication System (IHETS)	65,536
157.156.0.0/16	AS17816	China Unicom Guangdong province network	65,536
157.18.0.0/16	AS17816	China Unicom Guangdong province network	65,536
157.61.0.0/16	AS17816	China Unicom Guangdong province network	65,536
157.233.0.0/16	AS20001	Val Verde Unified School District	65,536
157.178.0.0/16	AS15337	William Rainey Harper College	65,536
157.94.0.0/16	AS16086	Elenia Oy	65,536
157.200.0.0/16	AS16086	Finnair Oy	65,536
157.181.0.0/16	AS2012	Eotvos Lorand University of Sciences	65,536
157.12.0.0/16	AS24275	TOTO LTD.	65,536
157.123.0.0/16	AS16509	Amazon.com, Inc.	65,536
157.135.0.0/16	AS16509	Amazon.com, Inc.	65,536
157.152.0.0/16	AS16509	Amazon.com, Inc.	65,536
157.243.0.0/16	AS16509	Amazon.com, Inc.	65,536
157.241.0.0/16	AS16509	Amazon Data Services Bahrain	65,536
157.24.0.0/16	AS1741	Computing Centre	65,536
157.148.0.0/16	AS17816	China Unicom Guangdong province network	65,536

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
157.63.178.8	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`1.89ms` from Tokyo, JP
157.63.182.21	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`2.53ms` from Tokyo, JP
157.63.180.30	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`2.22ms` 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
130.109.78.224	AS668 United States Department of Defense (DoD)	`0.59ms` from Atlanta, US
94.21.223.48	AS20845 DIGI Tavkozlesi es Szolgaltato Kft.	`0.81ms` from Budapest, HU
206.127.8.80	AS23005 SWITCH, LTD	`4.87ms` from Dallas, US
81.129.11.240	AS2856 British Telecommunications PLC	`1.70ms` from Erith, GB
217.230.166.48	AS3320 Deutsche Telekom AG	`1.06ms` from Frankfurt am Main, DE
24.205.14.48	AS20115 Charter Communications LLC	`5.11ms` from Los Angeles, US
173.84.149.160	AS5650 Frontier Communications of America, Inc.	`14.55ms` from Los Angeles, US
185.223.243.0	AS199952 AVATEL TELECOM, SA	`9.02ms` from Madrid, ES
91.16.64.80	AS3320 Deutsche Telekom AG	`3.31ms` from Nuernberg, DE
65.35.34.192	AS33363 Charter Communications, Inc	`8.80ms` from Orlando, US
187.90.172.32	AS26599 TELEFÔNICA BRASIL S.A	`4.46ms` from Osasco, BR
34.155.110.112	AS396982 Google LLC	`0.10ms` from Paris, FR
181.72.66.112	AS6535 Telmex Servicios Empresariales S.A.	`17.75ms` from Santiago, CL
1.233.96.16	AS9318 SK Broadband Co Ltd	`1.71ms` from Seoul, KR
211.49.108.208	AS9318 SK Broadband Co Ltd	`7.10ms` from Seoul, KR
71.128.2.240	AS7018 AT&T Enterprises, LLC	`2.36ms` from Dallas, US
180.131.146.224	AS395374 Cyber Sainik	`0.38ms` from Frankfurt am Main, DE
113.163.171.144	AS45899 VNPT Corp	`5.21ms` from Ho Chi Minh City, VN
49.144.120.208	AS9299 Philippine Long Distance Telephone Company	`1.61ms` from Manila, PH
112.203.116.0	AS9299 Philippine Long Distance Telephone Company	`1.24ms` from Manila, PH
176.214.222.144	AS50498 JSC "ER-Telecom Holding"	`7.19ms` from Moscow, RU
140.238.249.144	AS31898 Oracle Corporation	`0.16ms` from Mumbai, IN
153.221.172.160	AS4713 NTT DOCOMO BUSINESS,Inc.	`11.13ms` from Osaka, JP
128.79.2.192	AS5410 Bouygues Telecom SA	`9.32ms` from Paris, FR
89.10.94.48	AS15659 NextGenTel AS	`2.03ms` from Sandefjord, NO

Traceroute

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

traceroute -a -n -q1 -f4 -m14 157.63.60.22

traceroute to 157.63.60.22 (157.63.60.22): 14 hops max, 52 byte packets

4 [AS6939] 184.104.189.67 8.275 ms

5 *

6 *

7 *

8 *

9 [] 101.203.89.206 280.239 ms

10 [AS2907] 150.99.9.124 324.387 ms

11 [AS2907] 150.99.186.110 287.976 ms

12 *

13 *

14 *

Measurement taken from

IPinfo ProbeNet in Bucharest, RO

On December 14th 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.

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