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AS17511

AS17511 is OPTAGE Inc..

Last updated 5 Oct 2026 from DB-IP ASN Lite (2026-10-01) and RIR statistics (26 Oct 2026)

Short answer

AS17511 belongs to OPTAGE Inc.. DB-IP Lite attributes 2,994,432 IPv4 addresses in 55 ranges and 1 IPv6 ranges to it, all or nearly all of the IPv4 space in Japan. The number is registered with APNIC in Japan on 12 Dec 2000.

Facts for AS17511
Operator (DB-IP)OPTAGE Inc.
IPv4 addresses2,994,432
IPv4 ranges55
IPv6 ranges1
RegistryAPNIC
Registered12 Dec 2000
Registry countryJapan (JP)

Does it publish a geofeed?

We haven’t checked this network’s registry records for a geofeed yet. The Truth Check looks for one live for any address you test.

Shared addresses (CGNAT)

OPTAGE Inc. hasn’t been documented as using carrier-grade NAT in a source we could check. To see whether your own connection is behind it, compare your router’s address on the CGNAT check.

IPv6

DB-IP lists 1 IPv6 ranges for AS17511, so customers can get IPv6 addresses, which databases place separately from IPv4.

Where its IPv4 space is used, according to DB-IP

JP100%

Share of the network’s IPv4 addresses by DB-IP Country Lite. IP Geolocation by DB-IP.

IP ranges

RangeAs CIDRAddresses
58.70.0.0 – 58.70.255.25558.70.0.0/1665,536
58.188.0.0 – 58.191.255.25558.188.0.0/14262,144
59.190.0.0 – 59.190.255.25559.190.0.0/1665,536
60.56.0.0 – 60.57.255.25560.56.0.0/15131,072
61.122.240.0 – 61.122.255.25561.122.240.0/204,096
61.195.96.0 – 61.195.127.25561.195.96.0/198,192
61.205.0.0 – 61.205.15.25561.205.0.0/204,096
61.205.80.0 – 61.205.127.25561.205.80.0/20, 61.205.96.0/1912,288
61.213.128.0 – 61.213.143.25561.213.128.0/204,096
101.140.0.0 – 101.143.255.255101.140.0.0/14262,144
103.65.208.0 – 103.65.211.255103.65.208.0/221,024
103.84.124.0 – 103.84.127.255103.84.124.0/221,024
103.95.206.0 – 103.95.206.255103.95.206.0/24256
103.97.232.0 – 103.97.239.255103.97.232.0/212,048
103.99.124.0 – 103.99.127.255103.99.124.0/221,024
103.112.180.0 – 103.112.183.255103.112.180.0/221,024
103.116.152.0 – 103.116.155.255103.116.152.0/221,024
103.124.200.0 – 103.124.203.255103.124.200.0/221,024
103.142.132.0 – 103.142.133.255103.142.132.0/23512
103.199.132.0 – 103.199.135.255103.199.132.0/221,024
112.68.0.0 – 112.71.255.255112.68.0.0/14262,144
119.228.0.0 – 119.231.255.255119.228.0.0/14262,144
121.80.0.0 – 121.87.255.255121.80.0.0/13524,288
122.100.24.0 – 122.100.31.255122.100.24.0/212,048
128.22.0.0 – 128.22.255.255128.22.0.0/1665,536
128.27.0.0 – 128.27.255.255128.27.0.0/1665,536
138.248.64.0 – 138.248.67.255138.248.64.0/221,024
150.57.0.0 – 150.57.255.255150.57.0.0/1665,536
150.66.0.0 – 150.66.255.255150.66.0.0/1665,536
158.198.0.0 – 158.198.255.255158.198.0.0/1665,536
160.25.92.0 – 160.25.93.255160.25.92.0/23512
160.233.0.0 – 160.233.255.255160.233.0.0/1665,536
180.144.0.0 – 180.147.255.255180.144.0.0/14262,144
182.164.0.0 – 182.167.255.255182.164.0.0/14262,144
192.51.144.0 – 192.51.151.255192.51.144.0/212,048
202.8.48.0 – 202.8.63.255202.8.48.0/204,096
202.19.159.0 – 202.19.159.255202.19.159.0/24256
202.26.228.0 – 202.26.231.255202.26.228.0/221,024
202.34.10.0 – 202.34.13.255202.34.10.0/23, 202.34.12.0/231,024
202.60.32.0 – 202.60.47.255202.60.32.0/204,096
202.62.253.0 – 202.62.253.255202.62.253.0/24256
202.216.48.0 – 202.216.63.255202.216.48.0/204,096
202.223.48.0 – 202.223.51.255202.223.48.0/221,024
202.244.138.0 – 202.244.139.255202.244.138.0/23512
203.140.64.0 – 203.140.95.255203.140.64.0/198,192
203.175.80.0 – 203.175.95.255203.175.80.0/204,096
210.199.80.0 – 210.199.95.255210.199.80.0/204,096
218.42.192.0 – 218.42.255.255218.42.192.0/1816,384
218.45.96.0 – 218.45.111.255218.45.96.0/204,096
218.228.128.0 – 218.228.255.255218.228.128.0/1732,768
2001:ce8:: – 2001:ce8:ffff:ffff:ffff:ffff:ffff:ffff2001:ce8::/32IPv6
Showing 50 of 55 IPv4 and 1 of 1 IPv6 ranges All ranges (CSV)

IP Geolocation by DB-IP, ASN Lite, CC BY 4.0.

Using an address from this network? See which sources agree on where it is.

Sources

  1. DB-IP IP to ASN Lite (CC BY 4.0) · checked 5 Oct 2026
  2. NRO RIR delegated-extended statistics · checked 27 Oct 2026