133.245.0.0/16

AS2497 · Internet Initiative Japan Inc.

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Summary

Country	Japan
Domain	nic.ad.jp
ASN	AS2497
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
133.236.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.167.0.0/16	AS9371	SAKURA Internet Inc.	65,536
133.237.0.0/16	AS23820	Rakuten Group, Inc.	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
133.159.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.18.0.0/16	AS24282	KAGOYA JAPAN Inc.	65,536
133.218.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.123.0.0/16	AS7522	STNet, Incorporated	65,536
133.175.0.0/16	AS2519	ARTERIA Networks Corporation	65,536
133.112.0.0/16	AS2522	Japan Network Information Center	65,536
133.163.0.0/16	AS2510	FUJITSU LIMITED	65,536
133.137.0.0/16	AS2497	Internet Initiative Japan Inc.	65,536
133.242.0.0/16	AS7684	SAKURA Internet Inc.	65,536
133.125.0.0/16	AS7684	SAKURA Internet Inc.	65,536
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
133.232.128.0/17	AS2514	NTT PC Communications,Inc.	32,768
133.186.128.0/17	AS45974	NHN Cloud Japan Corporation	32,768
133.155.0.0/17	AS7524	ITEC Hankyu Hanshin Co.,Ltd.	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
133.186.64.0/18	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
133.149.128.0/18	AS4677	Marubeni OKI Network Solutions Inc.	16,384
133.232.0.0/19	AS7682	DMG MORI Digital 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
133.232.64.0/19	AS2514	INTERLINK Co.,LTD	8,192
133.32.224.0/19	AS2519	ARTERIA Networks Corporation	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
133.149.80.0/20	AS9354	Himawari Network Inc.	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

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

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

IP Address	ASN	Details
133.245.216.1	AS2497 Internet Initiative Japan Inc.	`13.10ms` 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
24.99.57.224	AS7922 Comcast Cable Communications, LLC	`4.42ms` from Atlanta, US
8.141.30.80	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`0.63ms` from Beijing, CN
79.209.74.32	AS3320 Deutsche Telekom AG	`4.16ms` from Berlin, DE
186.158.75.0	AS19037 AMX Argentina S.A.	`10.38ms` from Buenos Aires, AR
197.36.137.144	AS8452 TE-AS	`7.36ms` from Cairo, EG
154.180.110.160	AS8452 TE-AS	`6.71ms` from Cairo, EG
119.42.58.0	AS132116 Ani Network Pvt Ltd	`1.34ms` from Delhi, IN
23.215.194.192	AS16625 Akamai Technologies, Inc.	`0.13ms` from Delhi, IN
180.126.154.224	AS4134 CHINANET-BACKBONE	`6.86ms` from Huai'an, CN
180.253.221.0	AS7713 PT Telekomunikasi Indonesia	`1.99ms` from Jakarta, ID
197.97.146.144	AS3741 Dimension Data	`0.63ms` from Johannesburg, ZA
185.112.238.144	AS204144 Comfort XXI Century Ltd.	`16.94ms` from Krasnodar, RU
188.166.158.32	AS14061 DigitalOcean, LLC	`0.28ms` from London, GB
18.130.142.144	AS16509 Amazon.com, Inc.	`0.19ms` from London, GB
36.150.179.64	AS56046 China Mobile communications corporation	`2.77ms` from Nanjing, CN
153.185.30.176	AS4713 NTT DOCOMO BUSINESS,Inc.	`5.36ms` from Osaka, JP
103.197.243.16	AS23673 Cogetel Online, Cambodia, ISP	`0.57ms` from Phnom Penh, KH
52.2.155.80	AS14618 Amazon.com, Inc.	`0.17ms` from Reston, US
44.203.18.144	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
84.202.201.192	AS2119 Telenor Norge AS	`10.36ms` from Sandefjord, NO
125.156.40.208	AS4766 Korea Telecom	`5.49ms` from Seoul, KR
128.173.213.160	AS1312 Virginia Polytechnic Institute and State Univ.	`6.66ms` from Ashburn, US
198.27.69.160	AS16276 OVH SAS	`0.10ms` from Beauharnois, CA
54.186.104.80	AS16509 Amazon.com, Inc.	`0.14ms` from Boardman, US
72.199.253.80	AS22773 Cox Communications Inc.	`8.85ms` from Los Angeles, US

Traceroute

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

traceroute -a -n -q1 -m10 133.245.98.25

traceroute to 133.245.98.25 (133.245.98.25): 10 hops max, 52 byte packets

1 [AS15169] 142.250.208.159 48.651 ms

2 *

3 [AS2497] 58.138.99.130 54.66 ms

4 [AS2497] 58.138.98.237 51.49 ms

5 [AS2497] 58.138.100.146 53.695 ms

6 [AS2497] 58.138.99.234 52.954 ms

7 [AS2497] 202.232.8.250 64.193 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Hong Kong, HK

On November 22nd 2025

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