133.37.0.0/16

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
133.137.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.114.0.0/16	AS2527	Sony Network Communications Inc.	65,536
133.163.0.0/16	AS2510	FUJITSU LIMITED	65,536
133.125.0.0/16	AS7684	SAKURA Internet Inc.	65,536
133.218.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.142.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.123.0.0/16	AS7522	STNet, Incorporated	65,536
133.167.0.0/16	AS9371	SAKURA Internet Inc.	65,536
133.236.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.110.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.175.0.0/16	AS2519	ARTERIA Networks Corporation	65,536
133.18.0.0/16	AS24282	KAGOYA JAPAN Inc.	65,536
133.159.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.112.0.0/16	AS2522	Japan Network Information Center	65,536
133.242.0.0/16	AS7684	SAKURA Internet Inc.	65,536
133.237.0.0/16	AS23820	Rakuten Group, Inc.	65,536
133.155.0.0/17	AS7524	ITEC Hankyu Hanshin Co.,Ltd.	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
133.130.128.0/17	AS2514	NTT PC Communications,Inc.	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
133.149.192.0/18	AS2519	ARTERIA Networks Corporation	16,384
133.247.0.0/18	AS131918	SHONAN CABLE NETWORK	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
133.165.192.0/18	AS17534	NSK Co.,Ltd.	16,384
133.238.64.0/18	AS131958	TAMA CABLE NETWORK CO., LTD.	16,384
133.165.128.0/18	AS2527	Sony Network Communications Inc.	16,384
133.226.64.0/19	AS7524	ITEC Hankyu Hanshin Co.,Ltd.	8,192
133.238.32.0/19	AS2497	IIJ Internet	8,192
133.232.64.0/19	AS2514	INTERLINK Co.,LTD	8,192
133.32.224.0/19	AS2519	ARTERIA Networks Corporation	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
133.226.144.0/20	AS24279	SENDAI CATV CO.,LTD.	4,096
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
133.238.16.0/20	AS2497	IIJ Internet	4,096
133.32.128.0/20	AS2519	ARTERIA Networks Corporation	4,096
133.226.0.0/20	AS131934	ICC Corporation	4,096
133.32.176.0/20	AS2519	ARTERIA Networks Corporation	4,096
133.232.112.0/20	AS2514	INTERLINK Co.,LTD	4,096
133.88.48.0/20	AS23778	IMIZU CABLE NETWORK CO.,LTD.	4,096
133.226.160.0/20	AS17958	Kasaoka Cable Vision LIMITED	4,096
133.88.32.0/20	AS18281	Chitahanto Cable Network Corp.	4,096
133.226.16.0/20	AS23624	Chukai Television Co,.Ltd.	4,096
133.32.208.0/20	AS2519	ARTERIA Networks Corporation	4,096
133.247.240.0/20	AS131923	MCAT 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

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Pingable IPs

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

IP Address	ASN	Details
133.37.208.238	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`8.73ms` from Osaka, JP
133.37.57.3	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`8.49ms` from Osaka, JP
133.37.234.6	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`16.05ms` from Osaka, JP
133.37.214.22	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`8.58ms` from Osaka, JP
133.37.205.80	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`9.02ms` from Osaka, JP
133.37.149.234	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`9.15ms` from Osaka, JP
133.37.216.124	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`8.28ms` from Osaka, JP
133.37.17.154	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`8.33ms` from Osaka, JP
133.37.61.208	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`8.68ms` from Osaka, JP
133.37.60.195	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`8.81ms` from Osaka, JP
133.37.240.120	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`8.13ms` from Osaka, JP
133.37.144.146	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`8.74ms` from Osaka, JP
133.37.89.239	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`8.47ms` from Osaka, JP
133.37.56.229	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`8.98ms` 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
108.142.191.240	AS8075 Microsoft Corporation	`0.25ms` from Amsterdam, NL
50.110.175.16	AS5650 Frontier Communications of America, Inc.	`2.68ms` from Ashburn, US
187.147.83.144	AS8151 UNINET	`12.32ms` from Cancún, MX
97.225.35.64	AS6167 Verizon Business	`18.80ms` from Dallas, US
1.95.200.240	AS55990 Huawei Cloud Service data center	`1.10ms` from Guiyang, CN
68.52.23.128	AS7922 Comcast Cable Communications, LLC	`5.10ms` from Murfreesboro, US
38.248.29.16	AS265867 Trans Ocean Network	`3.03ms` from Panama, PA
68.72.216.0	AS7018 AT&T Enterprises, LLC	`4.24ms` from Redding, US
95.250.19.192	AS3269 Telecom Italia S.p.A.	`2.00ms` from Rome, IT
221.158.254.128	AS4766 Korea Telecom	`5.22ms` from Seoul, KR
23.196.209.48	AS20940 Akamai International B.V.	`0.18ms` from Ashburn, US
136.107.81.112	AS396982 Google LLC	`0.14ms` from Ashburn, US
5.255.104.192	AS60404 The Infrastructure Group B.V.	`0.25ms` from Dronten, NL
217.85.70.224	AS3320 Deutsche Telekom AG	`10.73ms` from Frankfurt am Main, DE
181.115.124.96	AS14754 TELECOMUNICACIONES DE GUATEMALA, SOCIEDAD ANONIMA	`6.38ms` from Guatemala City, GT
220.187.124.80	AS4134 CHINANET-BACKBONE	`8.39ms` from Hangzhou, CN
20.239.67.0	AS8075 Microsoft Corporation	`0.36ms` from Hong Kong, HK
74.71.185.176	AS12271 Charter Communications Inc	`4.93ms` from New York City, US
119.230.244.128	AS17511 OPTAGE Inc.	`1.70ms` from Osaka, JP
80.9.146.96	AS3215 Orange S.A.	`15.02ms` from Paris, FR
90.78.52.16	AS3215 Orange S.A.	`11.15ms` from Paris, FR
95.196.15.160	AS3301 Telia Company AB	`14.73ms` from Stockholm, SE
103.218.173.192	AS139648 PacketStream Korea	`0.12ms` from Tokyo, JP
126.153.71.176	AS17676 SoftBank Corp.	`2.90ms` from Tokyo, JP
223.133.35.160	AS2527 Sony Network Communications Inc.	`2.12ms` from Tokyo, JP

Traceroute

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

traceroute -a -n -q1 -m9 133.37.37.215

traceroute to 133.37.37.215 (133.37.37.215): 9 hops max, 52 byte packets

1 [AS15169] 142.251.241.129 2.153 ms

2 [AS15169] 108.170.255.228 1.838 ms

3 [] 210.173.184.25 1.974 ms

4 [AS2907] 150.99.20.224 9.167 ms

5 [AS2907] 150.99.199.46 10.4 ms

6 [AS2907] 133.37.240.117 9.535 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Osaka, JP

On November 14th 2025

What are IP address ranges?

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