192.51.54.0/24

AS8220 · COLT Technology Services Group Limited

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Summary

Country	Japan
Domain	msi.co.jp
ASN	AS8220
Registry	APNIC
ID	MSINET

WHOIS Details

inetnum:        192.51.52.0 - 192.51.54.255
netname:        MSINET
country:        JP
descr:          NTT DATA Mathematical Systems Inc.
admin-c:        TI17-AP
tech-c:         TI17-AP
status:         ASSIGNED PORTABLE
notify:         adm@msi.co.jp
mnt-by:         MAINT-JPNIC
mnt-irt:        IRT-JPNIC-JP
changed:        hm-changed@apnic.net 20050216
changed:        ip-apnic@nic.ad.jp 20050406
changed:        ip-apnic@nic.ad.jp 20111214
changed:        ip-apnic@nic.ad.jp 20131003
source:         APNIC

irt:            IRT-JPNIC-JP
address:        Urbannet-Kanda Bldg 4F, 3-6-2 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047, Japan
e-mail:         hostmaster@nic.ad.jp
abuse-mailbox:  hostmaster@nic.ad.jp
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
auth:           # Filtered
mnt-by:         MAINT-JPNIC
changed:        abuse@apnic.net 20101108
changed:        hm-changed@apnic.net 20101111
changed:        ip-apnic@nic.ad.jp 20140702
source:         APNIC

person:         Takashi Ishikawa
address:        MATHEMATICAL SYSTEMS INSTITUTE INC. 10F FOURSEASON BLDG. 2-4-3 SHINJUKU, SHINJYUKU-KU TOKYO
country:        JP
phone:          +81333581701
fax-no:         +81333586686
e-mail:         ishikawa@msi.co.jp
nic-hdl:        TI17-AP
remarks:        ----------
remarks:        imported from ARIN object:
remarks:        
remarks:        poc-handle:  TI011JP-JP-ARIN
remarks:        is-role:     N
remarks:        last-name:   Ishikawa
remarks:        first-name:  Takashi
remarks:        street:      MATHEMATICAL SYSTEMS INSTITUTE INC. 10F FOURSEASON BLDG. 2-4-3 SHINJUKU, SHINJYUKU-KU TOKYO
remarks:        country:     JP
remarks:        mailbox:     ishikawa@msi.co.jp
remarks:        fax-phone:   +81333586686
remarks:        bus-phone:   +81333581701
remarks:        reg-date:    1994-07-11
remarks:        changed:     hostmaster@arin.poc 19960708
remarks:        source:      ARIN
remarks:        
remarks:        ----------
notify:         ishikawa@msi.co.jp
mnt-by:         MNT-ERX-MATHESYSTEINSTIINC-NON-JP
changed:        hm-changed@apnic.net 20041222
source:         APNIC

inetnum:        192.51.52.0 - 192.51.54.255
netname:        MSINET-CIDR-BLK-JP
descr:          NTT DATA Mathematical Systems Inc.
country:        JP
admin-c:        TI011JP
tech-c:         AY024JP
tech-c:         MM8997JP
tech-c:         TI011JP
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)
changed:        apnic-ftp@nic.ad.jp 19900322
changed:        apnic-ftp@nic.ad.jp 20131002
source:         JPNIC

Nearby Ranges

BGP prefixes that overlap with 192.51.0.0/16

Range	ASN	Company	Num of IPs
192.51.208.0/20	AS2501	University of Tokyo	4,096
192.51.144.0/21	AS17511	KEIHANNA INTERACTION PLAZA INC.	2,048
192.51.168.0/22	AS2907	Inter-University Research Institute Corporation, National Institutes for the Humanities, National Museum of Ethnology	1,024
192.51.194.0/23	AS2907	Hokusei Gakuen University	512
192.51.192.0/23	AS21976	University Hospital	512
192.51.5.0/24	AS2116	Kongsberg Defence & Aerospace AS, Tromso	256
192.51.43.0/24	AS2510	FUJITSU LIMITED	256
192.51.240.0/24	AS36974	MTN COTE D'IVOIRE S.A	256
192.51.55.0/24	AS10021	TOYOBO CO., LTD.	256
192.51.48.0/24	AS399651	The Bancorp Incorporated	256
192.51.175.0/24	AS141311	Netmatix Network Private Limited	256
192.51.174.0/24	AS154084	Affinity Global Advertising Pvt Ltd	256
192.51.39.0/24	AS17944	Japan Weather Association	256
192.51.188.0/24	AS205960	Zhengzhou, a Dream Computer Technology Limited	256

Hosted domains

There are 2 domain names hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
192.51.54.198	msi.jp	2

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

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

IP Address	ASN	Details
192.51.54.129	AS8220 COLT Technology Services Group Limited	`1.47ms` 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
73.250.42.136	AS7922 Comcast Cable Communications, LLC	`6.82ms` from Ashburn, US
186.98.66.56	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`2.62ms` from Bogota, CO
52.247.35.72	AS8075 Microsoft Corporation	`0.32ms` from Boydton, US
35.220.43.168	AS396982 Google LLC	`0.10ms` from Montreal, CA
77.220.187.232	AS42632 MnogoByte LLC	`1.04ms` from Moscow, RU
76.118.78.24	AS7922 Comcast Cable Communications, LLC	`12.57ms` from Providence, US
60.210.63.8	AS4837 CHINA UNICOM China169 Backbone	`7.24ms` from Qingdao, CN
72.38.202.24	AS7992 Cogeco Connexion Inc.	`5.60ms` from Toronto, CA
195.169.34.248	AS1103 SURF B.V.	`0.61ms` from Amsterdam, NL
84.85.97.120	AS1136 KPN B.V.	`2.64ms` from Amsterdam, NL
91.249.25.136	AS9145 EWE TEL GmbH	`4.42ms` from Amsterdam, NL
73.95.191.72	AS7922 Comcast Cable Communications, LLC	`4.99ms` from Denver, US
38.68.82.8	AS174 Cogent Communications, LLC	`6.55ms` from Detroit, US
120.26.124.56	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`4.86ms` from Hangzhou, CN
67.10.167.72	AS11427 Charter Communications Inc	`8.13ms` from Houston, US
91.199.13.8	AS44049 Public Joint-Stock Company "Pireus Bank MKB"	`0.77ms` from Kyiv, UA
51.148.94.248	AS13037 Zen Internet Ltd	`2.36ms` from London, GB
75.206.39.56	AS6167 Verizon Business	`15.49ms` from Miami, US
32.218.54.72	AS46690 Southern New England Telephone Company and SNET America, Inc.	`4.30ms` from New York City, US
24.22.65.40	AS7922 Comcast Cable Communications, LLC	`5.33ms` from Portland, US
97.136.151.152	AS6167 Verizon Business	`13.51ms` from San Jose, US
222.236.207.216	AS9318 SK Broadband Co Ltd	`5.54ms` from Seoul, KR
134.0.57.120	AS5576 Agjencia Kombetare Shoqerise se Informacionit	`10.45ms` from Sofia, BG
95.137.186.88	AS34797 System Net Ltd	`0.97ms` from Tbilisi, GE
35.73.58.120	AS16509 Amazon.com, Inc.	`0.25ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 192.51.54.129

traceroute to 192.51.54.129 (192.51.54.129): 64 hops max, 52 byte packets

1 [AS15169] 142.251.50.125 130.276 ms

2 *

3 *

4 [AS8220] 148.109.6.174 357.692 ms

5 [AS8220] 192.51.54.129 356.728 ms

Measurement taken from

IPinfo ProbeNet in Santiago de Querétaro, MX

On March 13th 2026

What are IP address ranges?

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