133.55.0.0/16

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
133.237.0.0/16	AS23820	Rakuten Group, Inc.	65,536
133.125.0.0/16	AS7684	SAKURA Internet Inc.	65,536
133.123.0.0/16	AS7522	STNet, Incorporated	65,536
133.114.0.0/16	AS2527	Sony Network Communications Inc.	65,536
133.236.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.142.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.175.0.0/16	AS2519	ARTERIA Networks Corporation	65,536
133.242.0.0/16	AS7684	SAKURA Internet Inc.	65,536
133.163.0.0/16	AS2510	FUJITSU LIMITED	65,536
133.167.0.0/16	AS9371	SAKURA Internet Inc.	65,536
133.112.0.0/16	AS2522	Japan Network Information Center	65,536
133.218.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.159.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.137.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.110.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.18.0.0/16	AS24282	KAGOYA JAPAN Inc.	65,536
133.155.128.0/17	AS7524	ITEC Hankyu Hanshin Co.,Ltd.	32,768
133.130.128.0/17	AS2514	NTT PC Communications,Inc.	32,768
133.155.0.0/17	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
133.165.192.0/18	AS17534	NSK Co.,Ltd.	16,384
133.32.0.0/18	AS2519	ARTERIA Networks Corporation	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
133.226.96.0/19	AS9997	CTY 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
133.186.0.0/20	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 4 domain names hosted across 2 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
133.55.135.17	auple.in	3
133.55.66.33	zouku.cn	1

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
133.55.115.238	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.12ms` from Osaka, JP
133.55.130.88	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.20ms` from Osaka, JP
133.55.114.52	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.12ms` from Osaka, JP
133.55.2.5	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.17ms` from Osaka, JP
133.55.73.8	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.21ms` from Osaka, JP
133.55.24.19	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.12ms` from Osaka, JP
133.55.96.2	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.29ms` from Osaka, JP
133.55.48.10	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.07ms` from Osaka, JP
133.55.224.91	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.38ms` from Osaka, JP
133.55.72.21	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.21ms` from Osaka, JP
133.55.8.5	AS2907 Research Organization of Information and Systems, National Institute of Informatics	`6.09ms` 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
104.138.194.128	AS11426 Charter Communications Inc	`9.90ms` from Atlanta, US
175.23.172.64	AS4837 CHINA UNICOM China169 Backbone	`6.22ms` from Changchun, CN
172.232.112.48	AS63949 Akamai Connected Cloud	`0.69ms` from Chennai, IN
97.232.38.192	AS6167 Verizon Business	`18.39ms` from Dallas, US
54.155.142.128	AS16509 Amazon.com, Inc.	`0.20ms` from Dublin, IE
149.90.81.64	AS12353 Vodafone Portugal	`6.26ms` from Lisbon, PT
94.62.88.160	AS12353 Vodafone Portugal	`2.49ms` from Lisbon, PT
47.149.235.48	AS5650 Frontier Communications of America, Inc.	`4.82ms` from Los Angeles, US
83.48.37.96	AS3352 TELEFONICA DE ESPANA S.A.U.	`2.65ms` from Madrid, ES
203.123.111.32	AS38195 Superloop	`1.30ms` from Melbourne, AU
125.106.21.32	AS4134 CHINANET-BACKBONE	`7.45ms` from Ningbo, CN
83.172.168.96	AS25540 Alphalink SASU	`2.44ms` from Paris, FR
52.71.218.128	AS14618 Amazon.com, Inc.	`0.18ms` from Reston, US
81.191.165.112	AS2116 GLOBALCONNECT AS	`1.85ms` from Sandefjord, NO
179.241.71.208	AS22085 Claro S/A	`18.17ms` from Sao Paulo, BR
191.252.120.176	AS27715 Locaweb Serviços de Internet S/A	`0.88ms` from Sao Paulo, BR
84.95.86.144	AS12400 Partner Communications Ltd.	`1.54ms` from Tel Aviv, IL
18.177.212.192	AS16509 Amazon.com, Inc.	`0.22ms` from Tokyo, JP
52.177.35.160	AS8075 Microsoft Corporation	`0.22ms` from Boydton, US
120.88.121.160	AS4764 Aussie Broadband	`0.87ms` from Brisbane, AU
154.176.189.240	AS8452 TE-AS	`3.37ms` from Cairo, EG
104.5.140.240	AS7018 AT&T Enterprises, LLC	`18.01ms` from Chicago, US
27.70.7.80	AS7552 Viettel Group	`2.06ms` from Hanoi, VN
92.23.11.208	AS13285 TalkTalk Communications Limited	`3.17ms` from Manchester, GB
47.200.147.240	AS5650 Frontier Communications of America, Inc.	`5.63ms` from Miami, US

Traceroute

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

traceroute -a -n -q1 -m8 133.55.104.128

traceroute to 133.55.104.128 (133.55.104.128): 8 hops max, 52 byte packets

1 [AS15169] 66.249.95.81 156.916 ms

2 [AS15169] 216.239.59.32 155.74 ms

3 *

4 [AS2907] 150.99.13.178 185.229 ms

5 [AS2907] 150.99.189.190 185.671 ms

6 *

7 *

8 *

Measurement taken from

IPinfo ProbeNet in Moncks Corner, US

On December 14th 2025

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.

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