202.251.203.0/24

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

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Summary

Country	Japan
Domain	kitasato-u.ac.jp
ASN	AS2907
Parent Range	202.251.200.0/22
Registry	JPNIC
ID	KUNET-1-CIDR-BLK-JP

WHOIS Details

inetnum:        202.251.200.0 - 202.251.203.255
netname:        KUNET-1-CIDR-BLK-JP
descr:          Kitasato University
country:        JP
admin-c:        YK70746JP
tech-c:         HA11879JP
tech-c:         KD511JP
last-modified:  2024-08-29T01:41:02Z
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)
source:         JPNIC

Overlapping Ranges

BGP prefixes that contain 202.251.203.0/24

Range	ASN	Company	Num of IPs
202.251.200.0/22	AS2907	Kitasato University	1,024

Nearby Ranges

BGP prefixes that overlap with 202.251.0.0/16

Range	ASN	Company	Num of IPs
202.251.0.0/19	AS2497	CTI Engineering Co.Ltd.	8,192
202.251.224.0/20	AS2907	Fukushima Medical University	4,096
202.251.144.0/20	AS23781	National University Corporation, University of Toyama	4,096
202.251.184.0/21	AS2907	The Tohoku University of Art and Design	2,048
202.251.200.0/22	AS2907	Kitasato University	1,024
202.251.88.0/22	AS2907	National Institute of Technology, Japan	1,024
202.251.248.0/22	AS4686	BEKKOAME INTERNET ,Inc.	1,024
202.251.244.0/22	AS2907	National Fisheries University	1,024
202.251.180.0/22	AS2907	University Of Fukui	1,024
202.251.32.0/22	AS2907	National Institute of Technology, Japan	1,024
202.251.177.0/24	AS3488	Information Systems Department, Japan Aerospace Exploration Agency	256

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

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

IP Address	ASN	Details
202.251.203.192	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`1.50ms` 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
128.63.26.88	AS13 Headquarters, USAISC	`0.25ms` from Ashburn, US
193.160.80.232	AS6079 RCN	`0.34ms` from Boston, US
16.78.85.136	AS16509 Amazon.com, Inc.	`0.12ms` from Jakarta, ID
48.45.53.104	AS7922 Comcast Cable Communications, LLC	`0.60ms` from New York City, US
116.222.207.120	AS9824 JCOM Co., Ltd.	`8.31ms` from Osaka, JP
179.116.59.216	AS26599 TELEFÔNICA BRASIL S.A	`1.92ms` from Osasco, BR
189.236.112.168	AS8151 UNINET	`3.99ms` from Santiago de Queretaro, MX
43.212.176.184	AS16509 Amazon.com, Inc.	`0.34ms` from Taipei, TW
126.114.112.168	AS17676 SoftBank Corp.	`2.65ms` from Tokyo, JP
114.145.210.56	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.40ms` from Tokyo, JP
153.168.58.216	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.36ms` from Tokyo, JP
66.103.49.152	AS11260 EastLink	`14.47ms` from Toronto, CA
83.179.114.104	AS1257 Tele2 Sverige AB	`13.99ms` from Vilnius, LT
120.155.137.88	AS1221 Telstra Limited	`2.31ms` from Brisbane, AU
167.127.121.40	AS11520 Allstate Insurance Company	`6.75ms` from Columbus, US
113.165.196.136	AS45899 VNPT Corp	`7.14ms` from Da Nang, VN
188.136.115.216	AS12355 HeLi NET Telekommunikation GmbH & Co.	`2.87ms` from Duesseldorf, DE
113.191.142.24	AS45899 VNPT Corp	`3.84ms` from Hanoi, VN
113.173.179.200	AS45899 VNPT Corp	`1.57ms` from Ho Chi Minh City, VN
116.98.76.120	AS7552 Viettel Group	`12.86ms` from Ho Chi Minh City, VN
37.76.200.232	AS51407 Mada Al-Arab General Services Company	`1.88ms` from Ramallah, PS
3.95.84.88	AS14618 Amazon.com, Inc.	`0.15ms` from Reston, US
188.127.115.40	AS42560 Telemach BH d.o.o. Sarajevo	`6.41ms` from Sarajevo, BA
125.244.181.40	AS9316 DACOM-PUBNETPLUS	`6.48ms` from Seoul, KR
52.195.251.152	AS16509 Amazon.com, Inc.	`0.17ms` 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 -f3 202.251.203.237

traceroute to 202.251.203.237 (202.251.203.237): 64 hops max, 52 byte packets

3 [] 210.173.176.94 0.815 ms

4 [AS2907] 150.99.10.186 1.397 ms

5 [AS2907] 150.99.178.110 1.995 ms

6 [AS2907] 210.146.70.14 1.613 ms

7 [AS2907] 202.251.203.237 1.719 ms

Measurement taken from

IPinfo ProbeNet in Tokyo, JP

On April 4th 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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