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:         [email protected]
mnt-by:         MAINT-JPNIC
mnt-irt:        IRT-JPNIC-JP
changed:        [email protected] 20050216
changed:        [email protected] 20050406
changed:        [email protected] 20111214
changed:        [email protected] 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:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
auth:           # Filtered
mnt-by:         MAINT-JPNIC
changed:        [email protected] 20101108
changed:        [email protected] 20101111
changed:        [email protected] 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:         [email protected]
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:     [email protected]
remarks:        fax-phone:   +81333586686
remarks:        bus-phone:   +81333581701
remarks:        reg-date:    1994-07-11
remarks:        changed:     [email protected] 19960708
remarks:        source:      ARIN
remarks:        
remarks:        ----------
notify:         [email protected]
mnt-by:         MNT-ERX-MATHESYSTEINSTIINC-NON-JP
changed:        [email protected] 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:        [email protected] 19900322
changed:        [email protected] 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.co.jp	2

Hosted domains API

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Useful for Cybersecurity

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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	`2.10ms` 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
128.136.254.88	AS13649 Flexential Colorado Corp.	`1.07ms` from Atlanta, US
84.47.98.232	AS6855 Slovak Telekom, a.s.	`4.18ms` from Bratislava, SK
79.122.63.72	AS5483 Magyar Telekom Plc.	`4.98ms` from Budapest, HU
190.93.178.200	AS262183 MULTI LINK S.A.	`9.01ms` from Chapeco, BR
132.232.135.232	AS45090 Shenzhen Tencent Computer Systems Company Limited	`0.82ms` from Chengdu, CN
50.72.126.8	AS6327 Shaw Communications	`18.25ms` from Chicago, US
54.170.120.152	AS16509 Amazon.com, Inc.	`0.29ms` from Dublin, IE
93.235.76.152	AS3320 Deutsche Telekom AG	`2.45ms` from Frankfurt am Main, DE
14.255.34.248	AS45899 VNPT Corp	`3.29ms` from Hanoi, VN
223.214.225.184	AS4134 CHINANET-BACKBONE	`10.29ms` from Huai'an, CN
64.226.33.248	AS397504 ecoLINK	`8.85ms` from Kansas City, US
79.79.16.152	AS13285 TalkTalk Communications Limited	`6.28ms` from London, GB
180.195.247.24	AS9299 Philippine Long Distance Telephone Company	`18.54ms` from Manila, PH
68.202.88.168	AS33363 Charter Communications, Inc	`10.89ms` from Miami, US
13.200.41.152	AS16509 Amazon.com, Inc.	`0.50ms` from Mumbai, IN
90.59.21.216	AS3215 Orange S.A.	`7.78ms` from Paris, FR
189.231.35.56	AS8151 UNINET	`15.20ms` from Phoenix, US
210.136.91.104	AS2514 NTT PC Communications, Inc.	`3.70ms` from Tokyo, JP
220.211.23.152	AS2527 Sony Network Communications Inc.	`8.69ms` from Tokyo, JP
44.214.232.56	AS14618 Amazon.com, Inc.	`0.54ms` from Ashburn, US
3.211.124.168	AS14618 Amazon.com, Inc.	`0.48ms` from Ashburn, US
222.211.84.104	AS38283 CHINANET SiChuan Telecom Internet Data Center	`1.81ms` from Chengdu, CN
95.153.74.184	AS1547 INTERDNESTRKOM, Sovmestnoe Zakrytoe Aktsionernoe Obshchestvo	`2.77ms` from Chisinau, MD
3.29.76.8	AS16509 Amazon.com, Inc.	`0.13ms` from Dubai, AE
91.5.106.184	AS3320 Deutsche Telekom AG	`4.14ms` from Duesseldorf, DE

Traceroute

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

traceroute -a -n -q1 -f2 192.51.54.129

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

2 [] 210.173.176.50 12.288 ms

3 *

4 [AS8220] 148.109.6.174 9.931 ms

5 [AS8220] 192.51.54.129 11.958 ms

Measurement taken from

IPinfo ProbeNet in Nagano, JP

On December 28th 2025

What are IP address ranges?

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