202.251.144.0/20

AS23781 · Toyama University

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Summary

Country	Japan
Domain	u-toyama.ac.jp
ASN	AS23781
Registry	JPNIC
ID	TYA-NET-CIDR-BLK-JP

WHOIS Details

inetnum:        202.251.144.0 - 202.251.159.255
netname:        TYA-NET-CIDR-BLK-JP
descr:          National University Corporation, University of Toyama
country:        JP
admin-c:        NN1617JP
tech-c:         KO5433JP
tech-c:         NN1617JP
last-modified:  2014-12-23T04:41:05Z
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 202.251.0.0/16

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
202.251.184.0/21	AS2907	The Tohoku University of Art and Design	2,048
202.251.248.0/22	AS4686	BEKKOAME INTERNET ,Inc.	1,024
202.251.244.0/22	AS2907	National Fisheries University	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

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

IP Address	ASN	Details
202.251.144.65	AS23781 Toyama University	`6.08ms` from Osaka, JP
202.251.158.71	AS23781 Toyama University	`6.23ms` from Osaka, JP
202.251.146.90	AS23781 Toyama University	`6.39ms` 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
186.94.162.20	AS8048 CANTV Servicios, Venezuela	`1.99ms` from Caracas, VE
64.33.154.116	AS11796 Airstream Communications, LLC	`0.18ms` from Chicago, US
3.139.206.164	AS16509 Amazon.com, Inc.	`0.16ms` from Columbus, US
143.244.83.132	AS16509 Amazon.com, Inc.	`0.32ms` from Frankfurt am Main, DE
87.227.115.148	AS1257 Tele2 Sverige AB	`1.18ms` from Goeteborg, SE
195.149.8.20	AS13285 TalkTalk Communications Limited	`3.42ms` from London, GB
151.55.77.244	AS1267 WIND TRE S.P.A.	`4.64ms` from Milan, IT
45.80.64.68	AS12389 PJSC Rostelecom	`0.76ms` from Moscow, RU
50.89.119.84	AS33363 Charter Communications, Inc	`8.59ms` from Orlando, US
77.129.212.4	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`0.39ms` from Paris, FR
200.132.78.132	AS2716 Universidade Federal do Rio Grande do Sul	`5.23ms` from Porto Alegre, BR
211.193.50.228	AS4766 Korea Telecom	`0.93ms` from Seoul, KR
212.28.192.100	AS3301 Telia Company AB	`3.30ms` from Stockholm, SE
178.239.25.100	AS199081 Lancom Ltd.	`0.35ms` from Thessaloniki, GR
102.29.146.100	AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom)	`16.88ms` from Tunis, TN
198.74.178.52	AS4563 MUFG Bank Ltd.	`0.40ms` from Ashburn, US
112.73.202.20	AS9304 HGC Global Communications Limited	`0.20ms` from Ashburn, US
20.7.81.244	AS8075 Microsoft Corporation	`0.28ms` from Boydton, US
70.65.230.212	AS6327 Shaw Communications	`5.47ms` from Calgary, CA
171.213.3.180	AS4134 CHINANET-BACKBONE	`3.04ms` from Chengdu, CN
125.181.195.116	AS17858 LG POWERCOMM	`3.87ms` from Incheon, KR
175.194.184.164	AS4766 Korea Telecom	`1.56ms` from Incheon, KR
81.8.20.148	AS15924 Vodafone Net Iletisim Hizmetler AS	`2.83ms` from Istanbul, TR
182.32.248.100	AS4134 CHINANET-BACKBONE	`9.79ms` from Jinan, CN
114.114.118.116	AS21859 Zenlayer Inc	`0.21ms` from Los Angeles, US

Traceroute

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

traceroute -a -n -q1 -f5 -m13 202.251.153.173

traceroute to 202.251.153.173 (202.251.153.173): 13 hops max, 52 byte packets

5 [] 210.173.176.94 0.662 ms

6 [AS2907] 150.99.13.178 7.282 ms

7 [AS2907] 150.99.199.10 7.586 ms

8 [AS23781] 160.26.2.1 7.596 ms

9 [AS23781] 160.26.2.62 8.12 ms

10 [AS23781] 160.26.4.11 8.258 ms

11 *

12 *

13 *

Measurement taken from

IPinfo ProbeNet in Tokyo, JP

On February 7th 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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