Mobile carrier

AS17676 SoftBank Corp.ASN lookup: IP ranges, prefixes and network type

AS17676 is the autonomous system number (ASN) announced by SoftBank Corp.. It announces 194 prefixes, 35,909,886 IPv4 addresses in total. Every address inside those ranges is routed by this operator, which is what makes the number the shortest answer to who runs a given address.

AS17676 at a glance

Reference data for AS17676
OrganisationSoftBank Corp.
Autonomous systemAS17676
Network typeMobile carrier
IPv4 prefixes191
IPv6 prefixes3
IPv4 addresses35,909,886Summed across every announced prefix. IPv6 is not counted; the numbers are meaningless at that scale.
In known VPN ranges0 of 191 prefixes
In known datacenter ranges3 of 191 prefixes

The last two rows are a second opinion, counted against the X4BNet VPN and datacenter range lists rather than read off the operator name. A network with most of its prefixes in the VPN list is carrying anonymised traffic whatever it calls itself.

Sample prefixes

The largest ranges SoftBank Corp. announces, biggest first. These are a sample and not the full routing table: 194 prefixes do not fit on a page, and the ones worth showing are the ones most traffic comes from.

The largest prefixes announced by AS17676
PrefixFamilyAddresses
60.64.0.0/10IPv44,194,304
219.0.0.0/10IPv44,194,304
60.128.0.0/11IPv42,097,152
221.32.0.0/11IPv42,097,152
221.64.0.0/11IPv42,097,152
126.32.0.0/12IPv41,048,576
126.80.0.0/12IPv41,048,576
126.112.0.0/12IPv41,048,576
126.144.0.0/12IPv41,048,576
218.112.0.0/12IPv41,048,576
218.128.0.0/12IPv41,048,576
219.176.0.0/12IPv41,048,576
Live check

Look up an address on AS17676

The field is prefilled with 60.64.0.1, the first address of the largest range above. Change it for one from your own logs and you get the network, the operator and the verdict for that specific address.

What AS17676 means for detection

Addresses on SoftBank Corp. are mobile: phones and tablets behind carrier NAT. Our engine classifies them residential, with one caveat worth knowing. Carrier NAT puts thousands of subscribers behind one address, so an IP-level block here reaches far more people than intended, and rate limits keyed on the address will punish an entire city. Geolocation is coarse for the same reason.

The verdict for a single address is never settled by the ASN alone. It is the starting point, and IP Detection adds range membership, behaviour and history on top of it before it answers.

Related networks

Cite or call this

The same page as JSON

No key and no signup. This is the endpoint this page is rendered from, so anything you read here you can script against.

curl https://ipscanner.io/v1/asn/directory/AS17676

IPScanner. AS17676 SoftBank Corp., ASN directory. https://ipscanner.io/fr/asn/as17676. Derived from MaxMind GeoLite2.