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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 AS17516 at robtex .
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Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more. Traceroute →
$ traceroute -a -n -q1 -f3 -m13 163.137.141.200
traceroute to 163.137.141.200 (163.137.141.200 ): 13 hops max, 52 byte packets
Measurement taken from IPinfo ProbeNet in London, GB
On November 5, 2026
There are 2 peers for this ASN.
ASN Name Rank AS2497 Internet Initiative Japan Inc. #137 AS2914 NTT America, Inc. #43
There are 2 upstreams for this ASN.
ASN Name Rank AS2497 Internet Initiative Japan Inc. #137 AS2914 NTT America, Inc. #43
There are 0 downstreams for this ASN.
No downstreams found.
Important routers in AS17516 Share of IPv4 footprint per hexagon Less More
Held location over 90 days 84%
Held location over 1 year 92%
Median days between moves 51 days
Geolocation scope City How consistently this network's IPs hold their geolocation. Read relative to the network type, not as a quality score.
There are 88 domain names hosted across 65 IP addresses on this ASN.
18 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more
IP Address ASN Details 163.137.225.34 Ping AS17516 NTT COMWARE CORPORATION #39,208 0.92ms from Tokyo, JP 163.137.196.222 Ping AS17516 NTT COMWARE CORPORATION #39,208 1.77ms from Tokyo, JP 163.137.220.14 Ping AS17516 NTT COMWARE CORPORATION #39,208 0.78ms from Tokyo, JP 163.137.217.30 Ping AS17516 NTT COMWARE CORPORATION #39,208 0.80ms from Tokyo, JP 163.137.206.78 Ping AS17516 NTT COMWARE CORPORATION #39,208 0.79ms from Tokyo, JP 2403:2d00:8001:193::6 Ping AS17516 NTT COMWARE CORPORATION #39,208 1.27ms from Tokyo, JP 2403:2d00:8000:2::2 Ping AS17516 NTT COMWARE CORPORATION #39,208 0.82ms from Tokyo, JP 163.137.207.62 Ping AS17516 NTT COMWARE CORPORATION #39,208 0.78ms from Tokyo, JP 163.137.197.150 Ping AS17516 NTT COMWARE CORPORATION #39,208 0.84ms from Tokyo, JP 163.137.232.201 Ping AS17516 NTT COMWARE CORPORATION #39,208 1.49ms from Tokyo, JP
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Too few observations to describe this network's daily rhythm with confidence.
Neighbours by global rank Log scale. The dashed line marks this network.
Netblock Company Num of IPs NTT COMWARE CORPORATION
8,192 NTT COMWARE CORPORATION
2,048 NTT COMWARE CORPORATION
1,024 NTT COMWARE CORPORATION
512 NTT COMWARE CORPORATION
512 NTT COMWARE CORPORATION
512 NTT COMWARE CORPORATION
512 NTT COMWARE CORPORATION
512 NTT COMWARE CORPORATION
512 NTT COMWARE CORPORATION
512
Show more IP Ranges
Times shown in Japan local time (UTC+9). Less More
Peak hour 09:00–10:00
Active hours 14 hrs
Weekend vs weekday weekdays heavier
Busiest day Thu
Network type Business
Geography Japan
