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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Pingable IPs

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

IP Address	ASN	Details
202.251.144.129	AS23781 Toyama University	`6.15ms` 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
73.148.109.52	AS7922 Comcast Cable Communications, LLC	`9.14ms` from Ashburn, US
48.194.53.132	AS8075 Microsoft Corporation	`0.61ms` from Ashburn, US
188.36.227.36	AS5483 Magyar Telekom Plc.	`3.62ms` from Budapest, HU
41.238.2.116	AS8452 TE-AS	`3.66ms` from Cairo, EG
178.202.122.100	AS3209 Vodafone GmbH	`6.39ms` from Frankfurt am Main, DE
91.4.176.196	AS3320 Deutsche Telekom AG	`7.16ms` from Hamburg, DE
115.211.219.52	AS4134 CHINANET-BACKBONE	`8.83ms` from Hangzhou, CN
143.92.128.84	AS25019 Saudi Telecom Company JSC	`3.96ms` from Manama, BH
106.216.91.84	AS45609 Bharti Airtel Ltd. AS for GPRS Service	`11.63ms` from Mumbai, IN
87.162.193.20	AS3320 Deutsche Telekom AG	`3.55ms` from Nuernberg, DE
126.109.161.196	AS17676 SoftBank Corp.	`6.13ms` from Osaka, JP
206.0.29.132	AS208690 JeskeSolutions LTDA	`0.33ms` from Osasco, BR
217.144.121.20	AS31180 ELLISPHERE S.A.	`0.47ms` from Paris, FR
68.228.43.148	AS22773 Cox Communications Inc.	`5.76ms` from Phoenix, US
45.39.91.132	AS18779 EGIHosting	`0.16ms` from Santa Clara, US
211.3.97.36	AS4725 SoftBank Corp.	`4.51ms` from Tokyo, JP
104.45.173.180	AS8075 Microsoft Corporation	`0.36ms` from Ashburn, US
108.67.210.52	AS7018 AT&T Enterprises, LLC	`7.22ms` from Atlanta, US
114.254.255.4	AS4808 China Unicom Beijing Province Network	`4.79ms` from Beijing, CN
52.36.193.116	AS16509 Amazon.com, Inc.	`0.18ms` from Boardman, US
52.24.23.68	AS16509 Amazon.com, Inc.	`0.18ms` from Boardman, US
18.252.35.132	AS8987 Amazon Data Services Ireland Ltd	`1.10ms` from Columbus, US
46.41.20.20	AS15987 Portunity GmbH	`2.25ms` from Duesseldorf, DE
78.163.229.212	AS9121 Turk Telekomunikasyon Anonim Sirketi	`8.98ms` from Istanbul, TR
95.13.181.228	AS9121 Turk Telekomunikasyon Anonim Sirketi	`18.18ms` from Istanbul, TR

Traceroute

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

traceroute -a -n -q1 -f2 -m11 202.251.151.205

traceroute to 202.251.151.205 (202.251.151.205): 11 hops max, 52 byte packets

2 [AS15169] 108.170.248.252 247.132 ms

3 [] 210.173.176.94 256.303 ms

4 [AS2907] 150.99.13.178 275.951 ms

5 [AS2907] 150.99.199.10 306.971 ms

6 [AS23781] 160.26.2.1 275.369 ms

7 [AS23781] 160.26.2.62 277.272 ms

8 [AS23781] 160.26.4.11 267.782 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Hamina, FI

On December 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.

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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