202.251.244.0/22

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

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Summary

Country	Japan
Domain	fish-u.ac.jp
ASN	AS2907
Registry	JPNIC
ID	FISH-U-NET-CIDR-BLK-JP

WHOIS Details

inetnum:        202.251.244.0 - 202.251.247.255
netname:        FISH-U-NET-CIDR-BLK-JP
descr:          National Fisheries University
country:        JP
admin-c:        SU010JP
tech-c:         KA090JP
tech-c:         SU010JP
last-modified:  2005-03-02T20:59:02Z
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

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
202.251.144.0/20	AS23781	National University Corporation, University of Toyama	4,096
202.251.224.0/20	AS2907	Fukushima Medical University	4,096
202.251.184.0/21	AS2907	The Tohoku University of Art and Design	2,048
202.251.248.0/22	AS4686	BEKKOAME INTERNET ,Inc.	1,024
202.251.32.0/22	AS2907	National Institute of Technology, Japan	1,024
202.251.88.0/22	AS2907	National Institute of Technology, Japan	1,024
202.251.200.0/22	AS2497	Kitasato University	1,024
202.251.180.0/22	AS2907	University Of Fukui	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

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

IP Address	ASN	Details
202.251.246.22	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`9.91ms` from Osaka, JP
202.251.244.82	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`10.57ms` from Osaka, JP
202.251.245.71	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`10.71ms` from Osaka, 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
85.145.248.86	AS50266 Odido Netherlands B.V.	`3.69ms` from Amsterdam, NL
62.38.7.102	AS3329 VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA	`12.25ms` from Athens, GR
66.111.73.214	AS22646 Hargray Communications Group, Inc.	`9.25ms` from Atlanta, US
44.250.31.214	AS16509 Amazon.com, Inc.	`0.53ms` from Boardman, US
172.200.161.86	AS8075 Microsoft Corporation	`0.43ms` from Boydton, US
181.47.130.86	AS27747 Telecentro S.A.	`1.44ms` from Buenos Aires, AR
24.35.166.214	AS11976 Fidelity Communication International Inc.	`9.34ms` from Dallas, US
212.126.48.38	AS31122 Digiweb ltd	`0.21ms` from Dublin, IE
107.196.48.198	AS7018 AT&T Enterprises, LLC	`3.32ms` from Houston, US
184.177.125.38	AS22773 Cox Communications Inc.	`11.25ms` from Kansas City, US
31.49.18.86	AS2856 British Telecommunications PLC	`5.71ms` from London, GB
90.210.225.54	AS5607 Sky UK Limited	`3.48ms` from London, GB
2.154.49.134	AS6739 VODAFONE ONO, S.A.	`10.51ms` from Madrid, ES
187.226.35.166	AS8151 UNINET	`2.48ms` from Mexico City, MX
92.203.46.198	AS2527 Sony Network Communications Inc.	`9.95ms` from Osaka, JP
44.218.20.182	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
119.213.163.54	AS4766 Korea Telecom	`1.71ms` from Seoul, KR
180.65.120.214	AS9318 SK Broadband Co Ltd	`7.29ms` from Seoul, KR
118.219.178.214	AS9318 SK Broadband Co Ltd	`6.81ms` from Seoul, KR
83.227.93.246	AS8434 Telenor Sverige AB	`5.92ms` from Stockholm, SE
146.85.99.214	AS400186 Singing River Connect, LLC	`14.28ms` from Atlanta, US
217.160.148.134	AS8560 IONOS SE	`0.71ms` from Berlin, DE
75.243.12.134	AS6167 Verizon Business	`15.70ms` from Chicago, US
73.120.228.198	AS7922 Comcast Cable Communications, LLC	`4.32ms` from Chicago, US
94.203.29.118	AS15802 Emirates Integrated Telecommunications Company PJSC	`3.37ms` from Dubai, AE

Traceroute

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

traceroute -a -n -q1 -f3 -m13 202.251.247.143

traceroute to 202.251.247.143 (202.251.247.143): 13 hops max, 52 byte packets

3 [AS64050] 182.54.128.98 30.363 ms

4 [] 101.203.89.206 33.764 ms

5 [AS2907] 150.99.19.228 42.172 ms

6 [AS2907] 150.99.188.6 51.198 ms

7 [AS2907] 133.62.1.42 42.19 ms

8 [AS2907] 133.62.2.2 42.577 ms

9 [AS2907] 133.62.2.174 47.17 ms

10 [AS2907] 133.62.2.177 45.376 ms

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12 *

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Measurement taken from

IPinfo ProbeNet in Seoul, KR

On November 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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