Consumer ISP

AS9121 Turk TelekomASN lookup: IP ranges, prefixes and network type

AS9121 is the autonomous system number (ASN) announced by Turk Telekom. It announces 691 prefixes, 1,628,416 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.

AS9121 at a glance

Reference data for AS9121
OrganisationTurk Telekom
Autonomous systemAS9121
Network typeConsumer ISP
IPv4 prefixes614
IPv6 prefixes77
IPv4 addresses1,628,416Summed across every announced prefix. IPv6 is not counted; the numbers are meaningless at that scale.
In known VPN ranges0 of 614 prefixes
In known datacenter ranges1 of 614 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 Turk Telekom announces, biggest first. These are a sample and not the full routing table: 691 prefixes do not fit on a page, and the ones worth showing are the ones most traffic comes from.

The largest prefixes announced by AS9121
PrefixFamilyAddresses
95.2.0.0/15IPv4131,072
195.174.0.0/15IPv4131,072
81.212.0.0/16IPv465,536
85.111.0.0/16IPv465,536
88.239.0.0/16IPv465,536
88.255.0.0/16IPv465,536
95.1.0.0/16IPv465,536
95.4.0.0/16IPv465,536
95.11.0.0/16IPv465,536
212.175.0.0/16IPv465,536
62.248.0.0/17IPv432,768
95.0.0.0/17IPv432,768
Live check

Look up an address on AS9121

The field is prefilled with 95.2.0.1, 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 AS9121 means for detection

Addresses on Turk Telekom 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/AS9121

IPScanner. AS9121 Turk Telekom, ASN directory. https://ipscanner.io/nl/asn/as9121. Derived from MaxMind GeoLite2.