Consumer ISP

AS3320 Deutsche Telekom AGASN lookup: IP ranges, prefixes and network type

AS3320 is the autonomous system number (ASN) announced by Deutsche Telekom AG. It announces 1,688 prefixes, 34,062,068 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.

AS3320 at a glance

Reference data for AS3320
OrganisationDeutsche Telekom AG
Autonomous systemAS3320
Network typeConsumer ISP
IPv4 prefixes800
IPv6 prefixes888
IPv4 addresses34,062,068Summed across every announced prefix. IPv6 is not counted; the numbers are meaningless at that scale.
In known VPN ranges7 of 800 prefixes
In known datacenter ranges20 of 800 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 Deutsche Telekom AG announces, biggest first. These are a sample and not the full routing table: 1,688 prefixes do not fit on a page, and the ones worth showing are the ones most traffic comes from.

The largest prefixes announced by AS3320
PrefixFamilyAddresses
31.224.0.0/11IPv42,097,152
79.224.0.0/11IPv42,097,152
84.160.0.0/11IPv42,097,152
87.160.0.0/11IPv42,097,152
91.0.0.0/11IPv42,097,152
93.224.0.0/11IPv42,097,152
2.160.0.0/12IPv41,048,576
37.80.0.0/12IPv41,048,576
46.80.0.0/12IPv41,048,576
79.208.0.0/12IPv41,048,576
84.128.0.0/12IPv41,048,576
91.32.0.0/12IPv41,048,576
Live check

Look up an address on AS3320

The field is prefilled with 31.224.0.1, 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 AS3320 means for detection

Addresses on Deutsche Telekom AG are consumer connections: households and small businesses on a fixed line. Our engine classifies them residential, which is the class most likely to be a real customer, and the class fraud tools are least likely to flag. The catch is the residential proxy. An address here can be rented out by whoever holds the connection, and when that happens the ownership data on this page still reads as clean. That is a behavioural signal, not an ownership one.

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/AS3320

IPScanner. AS3320 Deutsche Telekom AG, ASN directory. https://ipscanner.io/zh_cn/asn/as3320. Derived from MaxMind GeoLite2.