Hosting and cloud

AS36183 Akamai Technologies, Inc. ASN lookup: IP ranges, prefixes and network type

AS36183 is the autonomous system number (ASN) announced by Akamai Technologies, Inc. It announces 1,523 prefixes, 125,696 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.

Recommended: blockServers, not people: traffic from here is mostly automated

155 of its 233 IPv4 ranges are on VPN lists and 233 on datacenter lists.

AS36183 at a glance

Reference data for AS36183
OrganisationAkamai Technologies, Inc.
Autonomous systemAS36183
Network typeHosting and cloud
IPv4 prefixes233
IPv6 prefixes1,290
IPv4 addresses125,696Summed across every announced prefix. IPv6 is not counted; the numbers are meaningless at that scale.
In known VPN ranges155 of 233 prefixes
In known datacenter ranges233 of 233 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 Akamai Technologies, Inc. announces, biggest first. These are a sample and not the full routing table: 1,523 prefixes do not fit on a page, and the ones worth showing are the ones most traffic comes from.

The largest prefixes announced by AS36183
PrefixFamilyAddresses
172.225.224.0/19IPv48,192
172.225.64.0/20IPv44,096
172.225.208.0/20IPv44,096
172.224.200.0/21IPv42,048
172.225.24.0/21IPv42,048
172.225.160.0/21IPv42,048
172.225.184.0/21IPv42,048
172.225.192.0/21IPv42,048
172.226.192.0/21IPv42,048
172.224.0.0/22IPv41,024
172.224.8.0/22IPv41,024
172.224.16.0/22IPv41,024

Live check

Look up an address on AS36183

The field is prefilled with 172.225.224.1, 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.

ASN Data
Try

What AS36183 means for detection

Addresses on Akamai Technologies, Inc. are infrastructure: servers, containers and managed services, not people at home. Our engine classifies them datacenter or hosting and never as VPN, because renting a machine is not running a VPN service. It does set anonymized, since a person browsing from a rented server is usually behind a self-hosted VPN, unless the address is known infrastructure such as a public resolver. That distinction matters for what you do next. A signup from here is worth a second look because automation lives on networks like this one, but blocking the range outright also blocks every monitoring service, payment webhook and corporate proxy that runs on it.

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.

The same answer for any IP, from the API

One call returns the ASN, the operator and the network type (hosting, VPN, mobile, ISP) for any address. 7 days of Starter, then a free plan, no card.