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AS54004
OPTIMUM-WIFI2

AS54004 announces 334,080 IPv4 addresses across 187 routed ranges, registered in US. Figures come from the public global routing table and are refreshed daily.

334K addressesIPv4 space announced
187Routed ranges
USRegistry country

Is AS54004 datacenter space?

Not according to the nine cloud and CDN providers whose published range lists we track. That is a statement about those specific lists, not proof the space is residential — plenty of hosting companies never publish machine-readable ranges, and this AS may well be one of them.

The reliable way to classify a specific address is to check it directly rather than to infer from the AS. The free lookup tool returns live tunnel and datacenter signals for any address.

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 187 announced ranges.

Range startRange endAddresses
13.141.152.013.141.255.25526,624
23.141.124.023.141.124.255256
23.141.132.023.141.132.255256
23.142.60.023.142.60.255256
23.142.76.023.142.76.255256
24.38.4.024.38.4.255256
24.38.74.024.38.74.255256
24.38.82.024.38.82.255256
24.38.93.024.38.93.255256
24.246.107.024.246.107.255256
24.246.114.024.246.114.255256
38.134.185.038.134.185.255256
38.147.219.038.147.219.255256
40.183.64.040.183.79.2554,096
40.183.216.040.183.223.2552,048
47.19.0.047.19.2.255768
47.19.3.047.19.18.2554,096
47.19.20.047.19.25.2551,536
47.19.27.047.19.33.2551,792
47.19.35.047.19.50.2554,096
47.19.52.047.19.71.2555,120
47.19.72.047.19.94.2555,888
47.19.96.047.19.98.255768
47.19.100.047.19.102.255768
47.19.104.047.19.106.255768
47.19.107.047.19.108.255512
47.19.110.047.19.117.2552,048
47.19.119.047.19.119.255256
47.19.121.047.19.126.2551,536
47.19.128.047.19.141.2553,584
47.19.142.047.19.142.255256
47.19.144.047.19.150.2551,792
47.19.153.047.19.155.255768
47.19.157.047.19.159.255768
47.19.160.047.19.190.2557,936
47.19.192.047.19.199.2552,048
47.19.200.047.19.205.2551,536
47.19.206.047.19.208.255768
47.19.210.047.19.218.2552,304
47.19.220.047.19.253.2558,704
47.19.255.047.19.255.255256
64.84.108.064.84.111.2551,024
65.51.0.065.51.9.2552,560
65.51.11.065.51.27.2554,352
65.51.32.065.51.33.255512
65.51.35.065.51.45.2552,816
65.51.46.065.51.57.2553,072
65.51.60.065.51.65.2551,536
65.51.67.065.51.80.2553,584
65.51.83.065.51.84.255512
65.51.86.065.51.94.2552,304
65.51.96.065.51.114.2554,864
65.51.116.065.51.123.2552,048
65.51.124.065.51.128.2551,280
65.51.130.065.51.132.255768
65.51.135.065.51.136.255512
65.51.137.065.51.143.2551,792
65.51.145.065.51.151.2551,792
65.51.154.065.51.167.2553,584
65.51.169.065.51.171.255768
65.51.174.065.51.194.2555,376
65.51.195.065.51.199.2551,280
65.51.202.065.51.202.255256
65.51.204.065.51.207.2551,024
65.51.209.065.51.217.2552,304
65.51.220.065.51.221.255512
65.51.223.065.51.230.2552,048
65.51.232.065.51.241.2552,560
65.51.243.065.51.246.2551,024
65.51.248.065.51.248.255256
65.51.250.065.51.250.255256
65.51.252.065.51.255.2551,024
65.87.16.065.87.23.2552,048
66.225.200.066.225.200.255256
67.200.100.067.200.101.255512
67.200.118.067.200.119.255512
68.182.64.068.182.67.2551,024
68.182.192.068.182.195.2551,024
68.182.220.068.182.223.2551,024
69.74.0.069.74.20.2555,376
69.74.22.069.74.23.255512
69.74.26.069.74.28.255768
69.74.29.069.74.40.2553,072
69.74.41.069.74.60.2555,120
69.74.62.069.74.89.2557,168
69.74.92.069.74.92.255256
69.74.96.069.74.130.2558,960
69.74.132.069.74.143.2553,072
69.74.146.069.74.167.2555,632
69.74.168.069.74.172.2551,280
69.74.174.069.74.178.2551,280
69.74.181.069.74.185.2551,280
69.74.187.069.74.195.2552,304
69.74.196.069.74.204.2552,304
69.74.205.069.74.215.2552,816
69.74.217.069.74.220.2551,024
69.74.223.069.74.234.2553,072
69.74.236.069.74.250.2553,840
69.74.252.069.74.253.255512
69.74.255.069.74.255.255256

Check a specific address

The AS tells you who announces a range. Whether one address inside it is currently a tunnel is a live question, answered per address — for example 13.141.152.0, the first address in this AS's announced space. The free lookup tool takes any address, and the IP intelligence hub explains what each signal means.

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