202.251.184.0/21

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

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Summary

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

WHOIS Details

inetnum:        202.251.184.0 - 202.251.191.255
netname:        TUAD-NET-CIDR-BLK-JP
descr:          The Tohoku University of Art and Design
country:        JP
admin-c:        AK2015JP
tech-c:         AK2015JP
last-modified:  2008-07-17T00:38:33Z
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
202.251.144.0/20	AS23781	National University Corporation, University of Toyama	4,096
202.251.88.0/22	AS2907	National Institute of Technology, Japan	1,024
202.251.180.0/22	AS2907	University Of Fukui	1,024
202.251.200.0/22	AS2497	Kitasato University	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
202.251.137.0/24	AS17676	Nippon Medical School	256
202.251.136.0/24	AS17676	Nippon Medical School	256
202.251.177.0/24	AS3488	Information Systems Department, Japan Aerospace Exploration Agency	256
202.251.141.0/24	AS17676	Nippon Medical School	256
202.251.142.0/24	AS17676	Nippon Medical School	256
202.251.140.0/24	AS2907	Nippon Medical School	256
202.251.139.0/24	AS17676	Nippon Medical School	256
202.251.143.0/24	AS17676	Nippon Medical School	256
202.251.138.0/24	AS17676	Nippon Medical School	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Pingable IPs

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

IP Address	ASN	Details
202.251.184.107	AS2907 Research Organization of Information and Systems, National Institute of Informatics	8.39ms from Tokyo, JP
202.251.186.1	AS2907 Research Organization of Information and Systems, National Institute of Informatics	8.32ms 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
104.239.237.53	AS27357 Rackspace Hosting	0.59ms from Ashburn, US
73.180.238.117	AS7922 Comcast Cable Communications, LLC	8.23ms from Ashburn, US
35.94.200.149	AS16509 Amazon.com, Inc.	0.52ms from Boardman, US
137.165.126.5	AS11399 Williams College	6.75ms from Boston, US
209.183.168.53	AS22346 Newroads Telecom	14.67ms from Dallas, US
79.218.106.245	AS3320 Deutsche Telekom AG	2.45ms from Frankfurt am Main, DE
84.187.128.149	AS3320 Deutsche Telekom AG	8.22ms from Frankfurt am Main, DE
176.49.246.37	AS12389 PJSC Rostelecom	0.88ms from Krasnoyarsk, RU
3.108.174.213	AS16509 Amazon.com, Inc.	0.14ms from Mumbai, IN
78.197.3.85	AS12322 Free SAS	10.64ms from Paris, FR
91.188.65.229	AS8304 Ecritel SASU	0.61ms from Paris, FR
72.202.220.149	AS22773 Cox Communications Inc.	0.77ms from Phoenix, US
79.189.148.37	AS5617 Orange Polska Spolka Akcyjna	2.33ms from Poznan, PL
213.216.44.245	AS30764 PODA a.s.	4.67ms from Prague, CZ
27.216.53.117	AS4837 CHINA UNICOM China169 Backbone	10.44ms from Qingdao, CN
4.78.248.133	AS3356 Level 3 Parent, LLC	0.84ms from San Jose, US
70.116.183.149	AS11427 Charter Communications Inc	1.54ms from Schertz, US
61.97.223.37	AS17839 LG HelloVision Corp.	1.90ms from Seoul, KR
182.209.171.181	AS17858 LG POWERCOMM	4.14ms from Seoul, KR
71.86.61.245	AS20115 Charter Communications LLC	5.15ms from St. Louis, US
112.4.93.149	AS56046 China Mobile communications corporation	2.32ms from Suzhou, CN
51.83.182.197	AS16276 OVH SAS	0.12ms from Warsaw, PL
72.203.198.245	AS22773 Cox Communications Inc.	0.28ms from Atlanta, US
221.216.53.213	AS4808 China Unicom Beijing Province Network	3.66ms from Beijing, CN
197.146.134.181	AS36884 Wana Corporate	3.31ms from Casablanca, MA

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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