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Summary IP address summary information Name
JR TOKAI Information Systems Company Country
Website
Hosted domains
8 IPv4 addresses
2,560 IPv6 addresses
0 ASN type
Business Registry
JPNIC Updated
20 years ago on Jun 20, 2006
WHOIS
ASHandle: █████
OrgID: █████
ASName: ██████
ASNumber: AS█████
RegDate: ████-██-██
Updated: ████-██-██
TechHandle: ████-████
Source: ████
Powered by ASN to WHOIS data Important routers in AS37891
What is an ASN? Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.
The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS37891 at robtex .
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Pingable IPs 3 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more
Other Pingable IPs IP Address ASN Details 54.71.176.115 Ping AS16509 Amazon.com, Inc. #19 0.16ms from Boardman, US 104.192.252.3 Ping AS63149 ScienceLogic, Inc #66,140 1.10ms from Herndon, US 36.4.62.99 Ping AS4134 CHINANET BACKBONE #5 7.04ms from Huainan, CN 222.127.50.67 Ping AS132199 Globe Telecom Inc. #146 14.42ms from Manila, PH 188.170.39.179 Ping AS25159 PJSC MegaFon #888 13.24ms from Moscow, RU 54.79.120.163 Ping AS16509 Amazon.com, Inc. #19 0.15ms from Sydney, AU 2.184.175.35 Ping AS58224 Iran Telecommunication Company PJS #91 17.56ms from Tehran, IR 39.101.28.163 Ping AS37963 Hangzhou Alibaba Advertising Co.,Ltd. #895 0.11ms from Jining, CN 94.253.113.51 Ping AS21453 Flex Ltd. #1,148 1.95ms from Moscow, RU 18.205.168.115 Ping AS14618 Amazon.com, Inc. #71 0.21ms from Reston, US
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Traceroute Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more. Traceroute →
$ traceroute -a -n -q1 -f2 58.147.162.129
traceroute to 58.147.162.129 (58.147.162.129 ): 64 hops max, 52 byte packets
Measurement taken from IPinfo ProbeNet in Hiroshima, JP
On October 30, 2026
Netblock Company Num of IPs JR TOKAI Information Systems Company
2,048 JR TOKAI Information Systems Company
256 JR TOKAI Information Systems Company
256 JR TOKAI Information Systems Company
256 JR TOKAI Information Systems Company
256 JR TOKAI Information Systems Company
256 JR TOKAI Information Systems Company
256 JR TOKAI Information Systems Company
256
Powered by IP Ranges data
There are 3 peers for this ASN.
ASN Name Rank AS2497 Internet Initiative Japan Inc. #135 AS2516 KDDI CORPORATION #17 AS4713 NTT DOCOMO BUSINESS,Inc. #11
There are 3 upstreams for this ASN.
ASN Name Rank AS2497 Internet Initiative Japan Inc. #135 AS2516 KDDI CORPORATION #17 AS4713 NTT DOCOMO BUSINESS,Inc. #11
There are 0 downstreams for this ASN.
No downstreams found.
Important routers in AS37891 Share of IPv4 footprint per hexagon Less More
Held location over 90 days 80%
Held location over 1 year 80%
Median days between moves 52 days
Geolocation scope National How consistently this network's IPs hold their geolocation. Read relative to the network type, not as a quality score.
There are 8 domain names hosted across 3 IP addresses on this ASN.
Activity A pronounced day/night rhythm — the signature of a consumer/eyeball network whose users sleep at night.
Times shown in Japan local time (UTC+9). Less More
Peak hour 11:00–12:00
Active hours 12 hrs
Weekend vs weekday weekdays heavier
Busiest day Thu
Network type Business
Geography Japan 
