Mobile carrier
AS9605 NTT DOCOMO, INC.ASN lookup: IP ranges, prefixes and network type
AS9605 is the autonomous system number (ASN) announced by NTT DOCOMO, INC.. It announces 383 prefixes, 2,569,216 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.
AS9605 at a glance
| Organisation | NTT DOCOMO, INC. |
|---|---|
| Autonomous system | AS9605 |
| Network type | Mobile carrier |
| IPv4 prefixes | 319 |
| IPv6 prefixes | 64 |
| IPv4 addresses | 2,569,216Summed across every announced prefix. IPv6 is not counted; the numbers are meaningless at that scale. |
| In known VPN ranges | 0 of 319 prefixes |
| In known datacenter ranges | 0 of 319 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 NTT DOCOMO, INC. announces, biggest first. These are a sample and not the full routing table: 383 prefixes do not fit on a page, and the ones worth showing are the ones most traffic comes from.
| Prefix | Family | Addresses |
|---|---|---|
| 27.228.0.0/15 | IPv4 | 131,072 |
| 1.72.0.0/16 | IPv4 | 65,536 |
| 1.77.0.0/16 | IPv4 | 65,536 |
| 27.231.0.0/16 | IPv4 | 65,536 |
| 49.99.0.0/16 | IPv4 | 65,536 |
| 49.101.0.0/16 | IPv4 | 65,536 |
| 49.111.0.0/16 | IPv4 | 65,536 |
| 110.160.0.0/16 | IPv4 | 65,536 |
| 146.99.0.0/16 | IPv4 | 65,536 |
| 146.160.0.0/16 | IPv4 | 65,536 |
| 148.67.0.0/16 | IPv4 | 65,536 |
| 148.68.0.0/16 | IPv4 | 65,536 |
Look up an address on AS9605
The field is prefilled with 27.228.0.1, 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 AS9605 means for detection
Addresses on NTT DOCOMO, INC. 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
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/AS9605
IPScanner. AS9605 NTT DOCOMO, INC., ASN directory. https://ipscanner.io/zh_cn/asn/as9605. Derived from MaxMind GeoLite2.