202.255.200.0/22

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

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Summary

Country	Japan
Domain
ASN	AS2907
Registry	JPNIC
ID	REKIHAKU-CIDR-BLK-JP

WHOIS Details

inetnum:        202.255.200.0 - 202.255.203.255
netname:        REKIHAKU-CIDR-BLK-JP
descr:          Inter-University Research Institute Corporation, National Institutes for the Humanities, National Museum of Japanese History
country:        JP
admin-c:        WO1861JP
tech-c:         WO1861JP
last-modified:  2025-06-02T23:08:05Z
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

Nearby Ranges

BGP prefixes that overlap with 202.255.0.0/16

Range	ASN	Company	Num of IPs
202.255.192.0/21	AS2907	Hokkaido University of Science	2,048
202.255.16.0/21	AS7522	STNet, Incorporated	2,048
202.255.184.0/22	AS2907	Jobu University	1,024
202.255.244.0/22	AS2907	National Institute of Technology, Japan	1,024
202.255.56.0/22	AS4713	MARUZEN-YUSHODO Company,Limited	1,024
202.255.44.0/22	AS7667	KDDI R&D Laboratories Inc.	1,024
202.255.28.0/23	AS4713	MITANI SANGYO Co.,LTD.	512
202.255.27.0/24	AS4713	ITOKI CO,LTD	256
202.255.60.0/24	AS4713	MARUZEN-YUSHODO Company,Limited	256
202.255.24.0/24	AS2907	Toyama College	256
202.255.229.0/24	AS2907	Kyoto Women's University	256
202.255.63.0/24	AS7677	Dai Nippon Printing Co., Ltd.	256
202.255.237.0/24	AS9371	SAKURA Internet Inc.	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

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

IP Address	ASN	Details
202.255.200.9	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`1.51ms` from Tokyo, JP
202.255.203.2	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`1.54ms` 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
125.25.156.198	AS23969 TOT Public Company Limited	`6.62ms` from Bangkok, TH
81.70.228.150	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.78ms` from Beijing, CN
4.153.18.54	AS8075 Microsoft Corporation	`0.20ms` from Boydton, US
5.186.213.230	AS44869 FIBIA P/S	`0.59ms` from Copenhagen, DK
98.157.55.134	AS10796 Charter Communications Inc	`15.51ms` from Flint, US
186.3.202.38	AS27947 Telconet S.A	`2.15ms` from Guayaquil, EC
146.185.11.22	AS12552 GlobalConnect AB	`0.79ms` from Helsinki, FI
183.164.242.150	AS4134 CHINANET-BACKBONE	`12.77ms` from Huai'an, CN
2.120.202.70	AS5607 Sky UK Limited	`5.71ms` from London, GB
32.140.252.70	AS7018 AT&T Enterprises, LLC	`5.79ms` from Miami, US
104.177.157.6	AS7018 AT&T Enterprises, LLC	`9.47ms` from Miami, US
104.119.44.22	AS20940 Akamai International B.V.	`6.29ms` from Osasco, BR
186.33.22.38	AS52468 UFINET PANAMA S.A.	`4.72ms` from San Pedro Sula, HN
175.233.225.246	AS4766 Korea Telecom	`1.98ms` from Seoul, KR
122.201.185.86	AS9676 SaveCom Internation Inc.	`2.77ms` from Taipei, TW
153.161.215.150	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.21ms` from Tokyo, JP
62.25.252.230	AS6660 VODAFONE ENTERPRISE EQUIPMENT LIMITED	`0.24ms` from Tokyo, JP
61.54.5.134	AS4837 CHINA UNICOM China169 Backbone	`7.87ms` from Zhengzhou, CN
50.168.155.6	AS7922 Comcast Cable Communications, LLC	`0.97ms` from Atlanta, US
93.113.54.54	AS203053 CLAUS WEB srl	`0.29ms` from Bucharest, RO
173.29.123.134	AS30036 Mediacom Communications Corp	`11.23ms` from Chicago, US
52.14.147.166	AS16509 Amazon.com, Inc.	`0.14ms` from Columbus, US
45.152.173.54	AS34244 Teleservice Bredband Skane AB	`2.36ms` from Copenhagen, DK
51.112.9.182	AS16509 Amazon.com, Inc.	`0.14ms` from Dubai, AE
83.77.138.6	AS3303 Swisscom (Switzerland) Ltd	`0.74ms` from Geneve, CH

Traceroute

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

traceroute -a -n -q1 -f5 202.255.203.129

traceroute to 202.255.203.129 (202.255.203.129): 64 hops max, 52 byte packets

5 [AS5580] 203.190.230.207 0.752 ms

6 [AS2907] 150.99.9.232 1.408 ms

7 [AS2907] 202.255.203.129 417.088 ms

Measurement taken from

IPinfo ProbeNet in Tokyo, JP

On December 29th 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.

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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