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AS63949
AKAMAI-LINODE-AP Akamai Connected Cloud

AS63949 announces 1,317,664 IPv4 addresses across 77 routed ranges, registered in SG. Figures come from the public global routing table and are refreshed daily.

1.3M addressesIPv4 space announced
77Routed ranges
SGRegistry country

Is AS63949 datacenter space?

Yes, at least in part. Address space announced by AS63949 appears in Linode/Akamai's own published IP ranges, which means the provider documents this space as its infrastructure. Traffic from it carries the dch signal in Sentinel's verdict, worth 40 points toward the 0–100 risk score — enough to reach the review band on its own, never enough to block.

See Linode/Akamai IP ranges for the full published footprint.

What an AS number does and does not tell you

An autonomous system number identifies who announces a block of addresses to the internet's routing table. It is an organisational fact, and a durable one — useful for attributing traffic to a hosting company, a carrier, or a university.

It is not a risk signal. A residential ISP's AS carries the household traffic of millions of ordinary customers and, at the same time, whatever residential proxy exits have been installed on those customers' devices. A hosting AS carries scrapers and legitimate server-to-server integrations in the same ranges. Scoring an address on the reputation of its AS produces exactly the false positives that make fraud tooling untrustworthy.

Sentinel does not feed AS names or routing data into its risk score. Tunnel detection comes from live network intelligence, and the dch signal comes from provider-published ranges. This directory exists to answer "who announces this address," which is a different and genuinely useful question.

Announced IPv4 ranges

All 77 announced ranges.

Range startRange endAddresses
23.44.129.19223.44.129.22332
23.92.16.023.92.31.2554,096
23.239.0.023.239.31.2558,192
45.33.0.045.33.127.25532,768
45.56.64.045.56.127.25516,384
45.79.0.045.79.118.25530,464
45.79.120.045.79.231.25528,672
45.79.236.045.79.255.2555,120
45.118.132.045.118.135.2551,024
50.116.0.050.116.63.25516,384
66.175.208.066.175.223.2554,096
66.228.32.066.228.63.2558,192
66.246.75.066.246.75.255256
69.164.192.069.164.223.2558,192
72.14.176.072.14.191.2554,096
74.207.224.074.207.255.2558,192
80.85.84.080.85.87.2551,024
85.90.244.085.90.247.2551,024
85.159.208.085.159.215.2552,048
88.80.184.088.80.191.2552,048
96.126.96.096.126.127.2558,192
97.107.128.097.107.143.2554,096
103.3.60.0103.3.63.2551,024
103.29.68.0103.29.71.2551,024
104.64.0.0104.64.223.25557,344
104.66.160.0104.66.191.2558,192
104.105.0.0104.105.223.25557,344
104.200.16.0104.200.31.2554,096
104.237.128.0104.237.159.2558,192
109.74.192.0109.74.207.2554,096
109.237.24.0109.237.27.2551,024
139.144.0.0139.144.79.25520,480
139.144.96.0139.144.135.25510,240
139.144.144.0139.144.255.25528,672
139.162.0.0139.162.255.25565,536
139.177.176.0139.177.207.2558,192
143.42.0.0143.42.79.25520,480
143.42.96.0143.42.255.25540,960
151.236.216.0151.236.223.2552,048
162.216.16.0162.216.19.2551,024
170.187.128.0170.187.129.255512
170.187.131.0170.187.132.255512
170.187.134.0170.187.255.25531,232
172.104.4.0172.104.199.25550,176
172.104.202.0172.104.203.255512
172.104.205.0172.105.141.25549,408
172.105.146.0172.105.255.25528,160
172.232.0.0172.232.87.25522,528
172.232.96.0172.235.63.255188,416
172.235.96.0172.235.99.2551,024
172.235.102.0172.235.102.255256
172.235.104.0172.235.108.2551,280
172.235.110.0172.235.114.2551,280
172.235.116.0172.235.125.2552,560
172.235.128.0172.239.255.255294,912
173.230.128.0173.230.159.2558,192
173.255.192.0173.255.255.25516,384
176.58.96.0176.58.127.2558,192
178.79.128.0178.79.191.25516,384
185.3.92.0185.3.95.2551,024
192.46.208.0192.46.239.2558,192
192.53.112.0192.53.127.2554,096
192.53.160.0192.53.175.2554,096
192.81.128.0192.81.135.2552,048
192.155.80.0192.155.95.2554,096
194.195.112.0194.195.127.2554,096
194.195.208.0194.195.223.2554,096
194.195.240.0194.195.255.2554,096
194.233.160.0194.233.175.2554,096
198.58.96.0198.58.127.2558,192
198.74.48.0198.74.63.2554,096
212.71.232.0212.71.239.2552,048
212.71.244.0212.71.255.2553,072
212.111.40.0212.111.43.2551,024
213.52.128.0213.52.130.255768
213.168.248.0213.168.251.2551,024
213.219.36.0213.219.39.2551,024

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