133.104.0.0/16

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
133.114.0.0/16	AS2527	Sony Network Communications Inc.	65,536
133.18.0.0/16	AS24282	KAGOYA 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
133.137.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.159.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.123.0.0/16	AS7522	STNet, Incorporated	65,536
133.218.0.0/16	AS2497	Internet Initiative 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
133.142.0.0/16	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
133.125.0.0/16	AS7684	SAKURA Internet Inc.	65,536
133.167.0.0/16	AS9371	SAKURA Internet Inc.	65,536
133.242.0.0/16	AS7684	SAKURA Internet Inc.	65,536
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
133.155.0.0/17	AS7524	ITEC Hankyu Hanshin Co.,Ltd.	32,768
133.155.128.0/17	AS7524	ITEC Hankyu Hanshin Co.,Ltd.	32,768
133.247.0.0/18	AS131918	SHONAN CABLE NETWORK	16,384
133.165.192.0/18	AS17534	NSK Co.,Ltd.	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
133.165.128.0/18	AS2527	Sony Network Communications Inc.	16,384
133.238.64.0/18	AS131958	TAMA CABLE NETWORK CO., LTD.	16,384
133.32.0.0/18	AS2519	ARTERIA Networks Corporation	16,384
133.149.128.0/18	AS4677	Marubeni OKI Network Solutions Inc.	16,384
133.226.96.0/19	AS9997	CTY Co.,Ltd.	8,192
133.232.0.0/19	AS7682	DMG MORI Digital Co., LTD.	8,192
133.232.64.0/19	AS2514	INTERLINK Co.,LTD	8,192
133.226.64.0/19	AS7524	ITEC Hankyu Hanshin Co.,Ltd.	8,192
133.238.32.0/19	AS2497	IIJ Internet	8,192
133.32.224.0/19	AS2519	ARTERIA Networks Corporation	8,192
133.238.16.0/20	AS2497	IIJ Internet	4,096
133.32.208.0/20	AS2519	ARTERIA Networks Corporation	4,096
133.186.0.0/20	AS10010	TOKAI Communications Corporation	4,096
133.247.144.0/20	AS131949	General Incorporated Foundation Aso Telework Center	4,096
133.226.0.0/20	AS131934	ICC Corporation	4,096
133.232.96.0/20	AS2514	INTERLINK Co.,LTD	4,096
133.226.144.0/20	AS24279	SENDAI CATV CO.,LTD.	4,096
133.32.80.0/20	AS131918	SHONAN CABLE NETWORK	4,096
133.232.112.0/20	AS2514	INTERLINK Co.,LTD	4,096
133.32.128.0/20	AS2519	ARTERIA Networks Corporation	4,096
133.226.16.0/20	AS23624	Chukai Television Co,.Ltd.	4,096
133.117.112.0/20	AS18283	Chupicom Inc.	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
133.247.240.0/20	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

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

IP Address	ASN	Details
133.104.9.80	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.27ms` from Tokyo, JP
133.104.8.30	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.63ms` from Tokyo, JP
133.104.73.30	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.50ms` from Tokyo, JP
133.104.28.30	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.59ms` from Tokyo, JP
133.104.129.30	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.59ms` from Tokyo, JP
133.104.82.30	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.63ms` from Tokyo, JP
133.104.4.1	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.45ms` from Tokyo, JP
133.104.5.41	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.53ms` from Tokyo, JP
133.104.3.11	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.48ms` from Tokyo, JP
133.104.64.30	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.62ms` from Tokyo, JP
133.104.6.30	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.75ms` from Tokyo, JP
133.104.2.1	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.40ms` from Tokyo, JP
133.104.1.12	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.38ms` 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
121.74.49.144	AS9500 One New Zealand Group Limited	`1.35ms` from Auckland, NZ
109.224.230.0	AS200325 BUNNYWAY, informacijske storitve d.o.o.	`0.10ms` from Chicago, US
216.45.30.32	AS32505 Conterra	`4.56ms` from Dallas, US
86.138.42.192	AS2856 British Telecommunications PLC	`4.73ms` from Erith, GB
81.51.229.32	AS3215 Orange S.A.	`7.77ms` from Frankfurt am Main, DE
149.202.86.16	AS16276 OVH SAS	`0.14ms` from Gravelines, FR
104.76.94.224	AS16625 Akamai Technologies, Inc.	`0.86ms` from Incheon, KR
151.101.26.80	AS54113 Fastly, Inc.	`0.06ms` from Lisbon, PT
31.54.206.112	AS2856 British Telecommunications PLC	`7.35ms` from London, GB
183.157.22.176	AS4134 CHINANET-BACKBONE	`5.54ms` from Ningbo, CN
62.209.121.96	AS2119 Telenor Norge AS	`11.80ms` from Oslo, NO
20.252.23.208	AS8075 Microsoft Corporation	`0.30ms` from Quincy, US
202.247.197.32	AS17955 Densan Co., Ltd.	`4.32ms` from Tokyo, JP
80.211.39.128	AS31034 Aruba S.p.A.	`0.40ms` from Arezzo, IT
76.24.250.208	AS7922 Comcast Cable Communications, LLC	`10.24ms` from Boston, US
91.179.30.208	AS5432 Proximus NV	`2.19ms` from Brussels, BE
171.234.219.64	AS7552 Viettel Group	`2.14ms` from Hanoi, VN
205.202.109.32	AS11714 Network Nebraska	`5.97ms` from Lincoln, US
90.199.212.112	AS5607 Sky UK Limited	`3.53ms` from London, GB
77.211.45.240	AS12430 VODAFONE ESPANA S.A.U.	`18.60ms` from Madrid, ES
151.29.138.0	AS1267 WIND TRE S.P.A.	`7.96ms` from Milan, IT
82.91.0.0	AS3269 Telecom Italia S.p.A.	`7.73ms` from Milan, IT
217.254.13.144	AS3320 Deutsche Telekom AG	`4.61ms` from Munich, DE
187.39.117.240	AS28573 Claro NXT Telecomunicacoes Ltda	`6.58ms` from Porto Alegre, BR
98.235.28.192	AS7922 Comcast Cable Communications, LLC	`18.08ms` from Reston, US

Traceroute

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

traceroute -a -n -q1 -f3 -m14 133.104.17.187

traceroute to 133.104.17.187 (133.104.17.187): 14 hops max, 52 byte packets

3 [AS6939] 184.104.191.164 34.207 ms

4 *

5 *

6 *

7 [] 101.203.89.206 232.14 ms

8 *

9 *

10 [AS2907] 133.104.1.12 303.559 ms

11 [AS2907] 133.104.4.2 303.912 ms

12 *

13 *

14 *

Measurement taken from

IPinfo ProbeNet in Hudiksvall, SE

On April 13th 2026

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