147.157.128.0/17

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

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Summary

Country	Japan
Domain	tsukuba-tech.ac.jp
ASN	AS2907
Registry	APNIC
ID	TCNET

WHOIS Details

inetnum:        147.157.0.0 - 147.157.255.255
netname:        TCNET
descr:          Tsukuba College of Technology
country:        JP
admin-c:        TCoT1-AP
tech-c:         TCoT1-AP
status:         ALLOCATED PORTABLE
mnt-by:         MAINT-JPNIC
mnt-irt:        IRT-JPNIC-JP
last-modified:  2015-12-01T22:24:38Z
source:         APNIC

irt:            IRT-JPNIC-JP
address:        Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047, japan
e-mail:         hostmaster@nic.ad.jp
abuse-mailbox:  hostmaster@nic.ad.jp
phone:          +81-3-5297-2311
fax-no:         +81-3-5297-2312
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
auth:           # Filtered
remarks:        hostmaster@nic.ad.jp was validated on 2024-11-27
mnt-by:         MAINT-JPNIC
last-modified:  2025-04-10T11:04:13Z
source:         APNIC

person:         Tsukuba College of Technology
address:        4-12-7 Kasuga Tsukuba, 3050821
country:        JP
phone:          +81-298-52-2890
e-mail:         masaji@k.tsukuba-tech.ac.jp
nic-hdl:        TCoT1-AP
remarks:        ----------
remarks:        imported from ARIN object:
remarks:        
remarks:        poc-handle:  ZT23-ARIN
remarks:        is-role:     Y
remarks:        last-name:   Tsukuba College of Technology
remarks:        street:      4-12-7 Kasuga Tsukuba, 3050821
remarks:        country:     JP
remarks:        mailbox:     masaji@k.tsukuba-tech.ac.jp
remarks:        bus-phone:   +81-298-52-2890
remarks:        reg-date:    2000-04-13
remarks:        changed:     hostmaster@arin.poc 20000413
remarks:        source:      ARIN
remarks:        
remarks:        ----------
notify:         masaji@k.tsukuba-tech.ac.jp
mnt-by:         MNT-ERX-TSUKUBACOLTECH-NON-JP
last-modified:  2008-09-04T07:29:34Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 147.157.0.0/16

Range	ASN	Company	Num of IPs
147.157.0.0/17	AS2907	Tsukuba College of Technology	32,768
147.157.85.0/24	AS2907	Tsukuba College of Technology	256

Hosted domains

There is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
147.157.168.255	wyyl.com.cn	1

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
147.157.220.175	AS2907 Research Organization of Information and Systems, National Institute of Informatics	2.78ms from Tokyo, JP
147.157.217.223	AS2907 Research Organization of Information and Systems, National Institute of Informatics	2.56ms from Tokyo, JP
147.157.167.247	AS2907 Research Organization of Information and Systems, National Institute of Informatics	2.62ms from Tokyo, JP
147.157.226.232	AS2907 Research Organization of Information and Systems, National Institute of Informatics	2.54ms from Tokyo, JP
147.157.254.158	AS2907 Research Organization of Information and Systems, National Institute of Informatics	2.64ms from Tokyo, JP
147.157.216.144	AS2907 Research Organization of Information and Systems, National Institute of Informatics	2.65ms 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
31.160.247.1	AS1136 KPN B.V.	0.83ms from Amsterdam, NL
46.19.217.17	AS20559 Fundaments B.V.	2.19ms from Amsterdam, NL
82.217.194.1	AS33915 Vodafone Libertel B.V.	3.74ms from Amsterdam, NL
91.86.156.1	AS47377 Orange Belgium SA	6.24ms from Amsterdam, NL
107.9.120.33	AS7843 Charter Communications Inc	9.38ms from Ashburn, US
50.210.153.161	AS7922 Comcast Cable Communications, LLC	6.75ms from Ashburn, US
217.228.57.17	AS3320 Deutsche Telekom AG	1.67ms from Berlin, DE
2.82.134.1	AS3243 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	1.31ms from Braga, PT
93.224.201.81	AS3320 Deutsche Telekom AG	3.57ms from Frankfurt am Main, DE
192.194.207.241	AS1759 Telia Finland Oyj	17.61ms from Helsinki, FI
73.21.194.1	AS7922 Comcast Cable Communications, LLC	10.07ms from Miami, US
38.129.56.1	AS33028 VEXXHOST, Inc.	0.98ms from Montreal, CA
108.191.101.129	AS33363 Charter Communications, Inc	8.52ms from Orlando, US
39.68.136.1	AS4837 CHINA UNICOM China169 Backbone	7.73ms from Qingdao, CN
180.154.44.1	AS4812 China Telecom (Group)	2.34ms from Shanghai, CN
116.229.148.1	AS4812 China Telecom (Group)	4.41ms from Shanghai, CN
126.112.169.177	AS17676 SoftBank Corp.	5.12ms from Tokyo, JP
66.222.68.33	AS4181 TDS TELECOM	14.81ms from Atlanta, US
69.254.190.1	AS7922 Comcast Cable Communications, LLC	9.93ms from Atlanta, US
183.217.120.129	AS9808 China Mobile Communications Group Co., Ltd.	10.96ms from Changsha, CN
98.100.46.145	AS10796 Charter Communications Inc	5.28ms from Columbus, US
77.247.76.209	AS31590 Rackhosting.com ApS	0.89ms from Copenhagen, DK
78.165.25.1	AS9121 Turk Telekomunikasyon Anonim Sirketi	13.48ms from Denizli, TR
65.38.130.1	AS393436 San Luis Valley Rural Electric Cooperative, Inc.	8.88ms from Denver, US
73.187.198.1	AS7922 Comcast Cable Communications, LLC	18.92ms from Detroit, US

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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