133.78.0.0/16

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:         [email protected]
abuse-mailbox:  [email protected]
phone:          +81-3-5297-2311
fax-no:         +81-3-5297-2312
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
auth:           # Filtered
remarks:        [email protected] 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:         [email protected]
admin-c:        JNIC1-AP
tech-c:         JNIC1-AP
nic-hdl:        AJ382-AP
remarks:        Generated from irt object IRT-JPNIC-JP
remarks:        [email protected] was validated on 2024-11-27
abuse-mailbox:  [email protected]
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:         [email protected]
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
133.218.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.175.0.0/16	AS2519	ARTERIA Networks Corporation	65,536
133.110.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.167.0.0/16	AS9371	SAKURA Internet Inc.	65,536
133.137.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.123.0.0/16	AS7522	STNet, Incorporated	65,536
133.236.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.18.0.0/16	AS24282	KAGOYA JAPAN Inc.	65,536
133.142.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.114.0.0/16	AS2527	Sony Network Communications Inc.	65,536
133.159.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.163.0.0/16	AS2510	FUJITSU LIMITED	65,536
133.237.0.0/16	AS23820	Rakuten Group, Inc.	65,536
133.112.0.0/16	AS2522	Japan Network Information Center	65,536
133.125.0.0/16	AS7684	SAKURA Internet Inc.	65,536
133.242.0.0/16	AS7684	SAKURA Internet Inc.	65,536
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
133.155.128.0/17	AS7524	ITEC Hankyu Hanshin Co.,Ltd.	32,768
133.186.128.0/17	AS45974	NHN Cloud Japan Corporation	32,768
133.232.128.0/17	AS2514	NTT PC Communications,Inc.	32,768
133.32.0.0/18	AS2519	ARTERIA Networks Corporation	16,384
133.165.192.0/18	AS17534	NSK Co.,Ltd.	16,384
133.247.0.0/18	AS131918	SHONAN CABLE NETWORK	16,384
133.165.128.0/18	AS2527	Sony Network Communications Inc.	16,384
133.149.192.0/18	AS2519	ARTERIA Networks Corporation	16,384
133.186.64.0/18	AS131915	Hamamatsu Cable Television .Inc	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
133.232.64.0/19	AS2514	INTERLINK Co.,LTD	8,192
133.32.224.0/19	AS2519	ARTERIA Networks Corporation	8,192
133.238.32.0/19	AS2497	IIJ Internet	8,192
133.226.64.0/19	AS7524	ITEC Hankyu Hanshin Co.,Ltd.	8,192
133.232.0.0/19	AS7682	DMG MORI Digital Co., LTD.	8,192
133.226.96.0/19	AS9997	CTY 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
133.32.128.0/20	AS2519	ARTERIA Networks Corporation	4,096
133.226.144.0/20	AS24279	SENDAI CATV CO.,LTD.	4,096
133.117.64.0/20	AS58791	GMO Internet Group, Inc.	4,096
133.226.16.0/20	AS23624	Chukai Television Co,.Ltd.	4,096
133.226.160.0/20	AS17958	Kasaoka Cable Vision LIMITED	4,096
133.117.80.0/20	AS18094	Tokyo Cable Network.,Inc.	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

Hosted domains

There are no domains currently hosted on this ASN.

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

Read more

Pingable IPs

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

IP Address	ASN	Details
133.78.33.7	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`4.49ms` from Tokyo, JP
133.78.219.1	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`3.58ms` from Tokyo, JP
133.78.112.28	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`3.18ms` from Tokyo, JP
133.78.111.2	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`3.22ms` from Tokyo, JP
133.78.98.1	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`10.57ms` from Tokyo, JP
133.78.72.1	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`2.37ms` from Tokyo, JP
133.78.200.74	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`5.63ms` from Tokyo, JP
133.78.28.211	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`3.64ms` from Tokyo, JP
133.78.190.16	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`4.01ms` from Tokyo, JP
133.78.45.17	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`3.95ms` from Tokyo, JP
133.78.36.239	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`3.64ms` from Tokyo, JP
133.78.202.6	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`3.86ms` from Tokyo, JP
133.78.203.9	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`3.66ms` from Tokyo, JP
133.78.124.23	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`3.38ms` from Tokyo, JP
133.78.184.77	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`3.66ms` from Tokyo, JP
133.78.71.7	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`2.30ms` 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
138.123.96.240	AS46887 Crown Castle Fiber LLC	`8.51ms` from Ashburn, US
180.76.163.208	AS38365 Beijing Baidu Netcom Science and Technology Co., Ltd.	`3.47ms` from Beijing, CN
47.86.180.224	AS45102 Alibaba (US) Technology Co., Ltd.	`0.60ms` from Hong Kong, HK
70.124.38.240	AS11427 Charter Communications Inc	`12.78ms` from Houston, US
221.154.172.240	AS4766 Korea Telecom	`0.77ms` from Incheon, KR
99.163.18.192	AS7018 AT&T Enterprises, LLC	`3.92ms` from Kansas City, US
91.38.173.240	AS3320 Deutsche Telekom AG	`6.09ms` from Nuernberg, DE
185.223.164.80	AS3170 VeloxServ Communications Ltd	`1.06ms` from Redditch, GB
163.176.160.48	AS31898 Oracle Corporation	`0.33ms` from Sao Paulo, BR
125.139.39.64	AS4766 Korea Telecom	`5.06ms` from Seoul, KR
101.88.99.224	AS4812 China Telecom (Group)	`1.75ms` from Shanghai, CN
126.235.44.112	AS17676 SoftBank Corp.	`3.00ms` from Tokyo, JP
198.11.46.112	AS20115 Charter Communications LLC	`0.89ms` from Ashburn, US
104.4.113.16	AS7018 AT&T Enterprises, LLC	`3.16ms` from Atlanta, US
101.108.97.16	AS23969 TOT Public Company Limited	`0.98ms` from Bangkok, TH
34.222.145.96	AS16509 Amazon.com, Inc.	`0.11ms` from Boardman, US
122.141.197.192	AS4837 CHINA UNICOM China169 Backbone	`7.11ms` from Changchun, CN
184.80.120.208	AS7029 Windstream Communications LLC	`0.38ms` from Dallas, US
40.192.78.32	AS16509 Amazon.com, Inc.	`1.28ms` from Hyderabad, IN
182.19.51.0	AS55410 Vodafone Idea Ltd	`2.21ms` from Hyderabad, IN
62.253.92.0	AS5089 Virgin Media Limited	`8.09ms` from London, GB
90.14.96.32	AS3215 Orange S.A.	`4.24ms` from Marseille, FR
73.62.84.48	AS7922 Comcast Cable Communications, LLC	`7.02ms` from Miami, US
117.182.194.64	AS9808 China Mobile Communications Group Co., Ltd.	`5.08ms` from Nanning, CN
88.187.161.96	AS12322 Free SAS	`9.00ms` from Paris, FR

Traceroute

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

traceroute -a -n -q1 -f2 -m13 133.78.237.153

traceroute to 133.78.237.153 (133.78.237.153): 13 hops max, 52 byte packets

2 [AS7106] 209.173.160.81 3.782 ms

3 [AS7106] 209.143.25.37 6.282 ms

4 *

5 *

6 *

7 *

8 [AS6939] 184.105.213.118 136.873 ms

9 [AS5580] 203.190.230.207 137.211 ms

10 [AS2907] 150.99.12.70 138.438 ms

11 *

12 *

13 *

Measurement taken from

IPinfo ProbeNet in Ottoville, US

On January 30th 2026

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