133.52.0.0/16

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

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Summary

Country	Japan
Domain	nic.ad.jp
ASN	AS2907
Registry	APNIC
ID	JPNIC-NET-JP-ERX

WHOIS Details

inetnum:        133.0.0.0 - 133.255.255.255
netname:        JPNIC-NET-JP-ERX
descr:          Japan Network Information Center
country:        JP
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
abuse-c:        AJ382-AP
remarks:        133/8 block is an ERX range which transfered from
remarks:        ARIN to APNIC on 2009-10-30
remarks:        The original allocation date was 1997-03-01
remarks:        Please search  whois.nic.ad.jp for more information
remarks:        about this range
remarks:        % whois -h whois.nic.ad.jp ***.***.***.***/e
status:         ALLOCATED PORTABLE
mnt-by:         APNIC-HM
mnt-lower:      MAINT-JPNIC
mnt-irt:        IRT-JPNIC-JP
last-modified:  2022-11-01T04:33:10Z
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:  2025-09-04T01:00:00Z
source:         APNIC

role:           ABUSE JPNICJP
country:        ZZ
address:        Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047, japan
phone:          +81-3-5297-2311
fax-no:         +81-3-5297-2312
e-mail:         hostmaster@nic.ad.jp
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
nic-hdl:        AJ382-AP
remarks:        Generated from irt object IRT-JPNIC-JP
remarks:        hostmaster@nic.ad.jp was validated on 2024-11-27
abuse-mailbox:  hostmaster@nic.ad.jp
mnt-by:         APNIC-ABUSE
last-modified:  2025-01-23T00:15:35Z
source:         APNIC

role:           Japan Network Information Center
address:        Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda
address:        Chiyoda-ku, Tokyo 101-0047, Japan
country:        JP
phone:          +81-3-5297-2311
fax-no:         +81-3-5297-2312
e-mail:         hostmaster@nic.ad.jp
admin-c:        JI13-AP
tech-c:         JE53-AP
nic-hdl:        JNIC1-AP
mnt-by:         MAINT-JPNIC
last-modified:  2022-01-05T03:04:02Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 133.0.0.0/8

Range	ASN	Company	Num of IPs
133.110.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.137.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.125.0.0/16	AS7684	SAKURA Internet Inc.	65,536
133.114.0.0/16	AS2527	Sony Network Communications Inc.	65,536
133.167.0.0/16	AS9371	SAKURA Internet Inc.	65,536
133.163.0.0/16	AS2510	FUJITSU LIMITED	65,536
133.237.0.0/16	AS23820	Rakuten Group, Inc.	65,536
133.242.0.0/16	AS7684	SAKURA Internet Inc.	65,536
133.142.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.159.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.218.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.18.0.0/16	AS24282	KAGOYA JAPAN Inc.	65,536
133.236.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.112.0.0/16	AS2522	Japan Network Information Center	65,536
133.175.0.0/16	AS2519	ARTERIA Networks Corporation	65,536
133.123.0.0/16	AS7522	STNet, Incorporated	65,536
133.186.128.0/17	AS45974	NHN Cloud Japan Corporation	32,768
133.155.128.0/17	AS7524	ITEC Hankyu Hanshin Co.,Ltd.	32,768
133.155.0.0/17	AS7524	ITEC Hankyu Hanshin Co.,Ltd.	32,768
133.130.128.0/17	AS2514	NTT PC Communications,Inc.	32,768
133.232.128.0/17	AS2514	NTT PC Communications,Inc.	32,768
133.165.128.0/18	AS2527	Sony Network Communications Inc.	16,384
133.247.0.0/18	AS131918	SHONAN CABLE NETWORK	16,384
133.165.192.0/18	AS17534	NSK Co.,Ltd.	16,384
133.238.64.0/18	AS131958	TAMA CABLE NETWORK CO., LTD.	16,384
133.149.128.0/18	AS4677	Marubeni OKI Network Solutions Inc.	16,384
133.186.64.0/18	AS131915	Hamamatsu Cable Television .Inc	16,384
133.149.192.0/18	AS2519	ARTERIA Networks Corporation	16,384
133.32.0.0/18	AS2519	ARTERIA Networks Corporation	16,384
133.32.224.0/19	AS2519	ARTERIA Networks Corporation	8,192
133.226.64.0/19	AS7524	ITEC Hankyu Hanshin Co.,Ltd.	8,192
133.232.64.0/19	AS2514	INTERLINK Co.,LTD	8,192
133.226.96.0/19	AS9997	CTY Co.,Ltd.	8,192
133.238.32.0/19	AS2497	IIJ Internet	8,192
133.232.0.0/19	AS7682	DMG MORI Digital Co., LTD.	8,192
133.186.0.0/20	AS10010	TOKAI Communications Corporation	4,096
133.32.80.0/20	AS131918	SHONAN CABLE NETWORK	4,096
133.247.144.0/20	AS131949	General Incorporated Foundation Aso Telework Center	4,096
133.232.96.0/20	AS2514	INTERLINK Co.,LTD	4,096
133.226.0.0/20	AS131934	ICC Corporation	4,096
133.238.16.0/20	AS2497	IIJ Internet	4,096
133.226.144.0/20	AS24279	SENDAI CATV CO.,LTD.	4,096
133.226.16.0/20	AS23624	Chukai Television Co,.Ltd.	4,096
133.88.48.0/20	AS23778	IMIZU CABLE NETWORK CO.,LTD.	4,096
133.88.32.0/20	AS18281	Chitahanto Cable Network Corp.	4,096
133.232.112.0/20	AS2514	INTERLINK Co.,LTD	4,096
133.247.240.0/20	AS131923	MCAT Ltd.	4,096
133.226.32.0/20	AS10003	Ogaki Cable Television Co.,Inc.	4,096
133.247.112.0/20	AS131952	Asahikawa Cable Television Co., Ltd.	4,096
133.117.64.0/20	AS58791	GMO Internet Group, Inc.	4,096

Hosted domains

There are 3 domain names hosted across 3 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
133.52.240.95	inrof.org	1
133.52.27.1	fukushima-u.ac.jp	1
133.52.134.229	buyerwinner.com	1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
133.52.1.244	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`5.15ms` from Tokyo, JP
133.52.240.108	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`5.78ms` from Tokyo, JP
133.52.131.156	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`5.73ms` from Tokyo, JP
133.52.10.53	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`5.66ms` from Tokyo, JP
133.52.166.31	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`5.92ms` from Tokyo, JP
133.52.12.26	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`5.75ms` from Tokyo, JP
133.52.62.14	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.10ms` 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
122.57.202.0	AS4771 Spark New Zealand Trading Ltd.	`1.10ms` from Auckland, NZ
54.218.4.80	AS16509 Amazon.com, Inc.	`0.16ms` from Boardman, US
129.206.220.16	AS553 BelWue-Koordination	`3.73ms` from Frankfurt am Main, DE
20.218.181.112	AS8075 Microsoft Corporation	`0.21ms` from Frankfurt am Main, DE
103.229.64.240	AS55720 Gigabit Hosting Sdn Bhd	`1.22ms` from Hong Kong, HK
62.105.74.0	AS5413 Wavenet Limited	`6.57ms` from London, GB
92.56.131.192	AS12479 Orange Espagne SA	`10.91ms` from Madrid, ES
76.26.20.144	AS7922 Comcast Cable Communications, LLC	`5.08ms` from Miami, US
82.90.69.0	AS3269 Telecom Italia S.p.A.	`4.70ms` from Milan, IT
41.90.13.192	AS37061 Safaricom Limited	`6.85ms` from Nairobi, KE
219.163.19.80	AS4713 NTT DOCOMO BUSINESS,Inc.	`7.12ms` from Osaka, JP
124.131.68.208	AS4837 CHINA UNICOM China169 Backbone	`10.50ms` from Qingdao, CN
27.218.140.96	AS4837 CHINA UNICOM China169 Backbone	`4.56ms` from Qingdao, CN
8.213.80.240	AS45102 Alibaba (US) Technology Co., Ltd.	`1.08ms` from Riyadh, SA
179.217.135.80	AS28573 Claro NXT Telecomunicacoes Ltda	`11.51ms` from Sao Paulo, BR
43.134.60.144	AS132203 Tencent Building, Kejizhongyi Avenue	`0.63ms` from Singapore, SG
114.18.255.64	AS2516 KDDI CORPORATION	`11.44ms` from Tokyo, JP
93.140.162.16	AS5391 Hrvatski Telekom d.d.	`6.88ms` from Zagreb, HR
131.96.120.144	AS10631 Georgia State University	`0.24ms` from Atlanta, US
3.129.85.64	AS16509 Amazon.com, Inc.	`0.15ms` from Columbus, US
201.54.188.128	AS271137 diego fernando sales feitosa	`0.73ms` from Fortaleza, BR
140.240.151.80	AS4134 CHINANET-BACKBONE	`5.04ms` from Haikou, CN
81.134.44.32	AS2856 British Telecommunications PLC	`2.96ms` from London, GB
81.130.130.160	AS2856 British Telecommunications PLC	`2.42ms` from London, GB
83.106.124.128	AS5378 Vodafone Limited	`8.01ms` from London, GB

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 133.52.57.41

traceroute to 133.52.57.41 (133.52.57.41): 11 hops max, 52 byte packets

2 [AS49770] 95.143.207.229 5.765 ms

3 *

4 *

5 *

6 *

7 [] 210.173.176.94 233.271 ms

8 [AS2907] 150.99.6.202 237.714 ms

9 *

10 *

11 *

Measurement taken from

IPinfo ProbeNet in Hudiksvall, SE

On December 6th 2025

What are IP address ranges?

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