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AS19108
SUDDENLINK-COMMUNICATIONS

AS19108 announces 2,840,320 IPv4 addresses across 306 routed ranges, registered in US. Figures come from the public global routing table and are refreshed daily.

2.8M addressesIPv4 space announced
306Routed ranges
USRegistry country

Is AS19108 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

First 100 of 306 ranges.

Range startRange endAddresses
24.31.17.024.31.17.255256
24.32.0.024.32.39.25510,240
24.32.40.024.32.71.2558,192
24.32.73.024.32.119.25512,032
24.32.120.024.32.130.2552,816
24.32.131.024.32.137.2551,792
24.32.138.024.32.147.2552,560
24.32.148.024.32.172.2556,400
24.32.173.024.32.231.25515,104
24.32.232.024.32.255.2556,144
24.49.194.024.49.194.255256
24.49.200.024.49.200.255256
24.54.114.024.54.114.255256
24.54.116.024.54.119.2551,024
24.72.175.024.72.175.255256
24.72.186.024.72.187.255512
24.75.113.024.75.113.255256
24.75.123.024.75.124.255512
24.75.126.024.75.126.255256
24.121.0.024.121.83.25521,504
24.121.84.024.121.88.2551,280
24.121.89.024.121.101.2553,328
24.121.103.024.121.111.2552,304
24.121.114.024.121.255.25536,352
24.156.0.024.156.15.2554,096
24.156.16.024.156.16.255256
24.156.18.024.156.23.2551,536
24.156.24.024.156.34.2552,816
24.156.35.024.156.127.25523,808
24.206.128.024.206.183.25514,336
24.206.184.024.206.197.2553,584
24.206.199.024.206.202.2551,024
24.206.203.024.206.219.2554,352
24.206.220.024.206.255.2559,216
24.213.120.024.213.120.255256
24.223.86.024.223.86.255256
24.224.36.024.224.37.255512
24.224.44.024.224.44.255256
24.224.55.024.224.56.255512
24.224.58.024.224.63.2551,536
24.245.68.024.245.69.255512
24.245.72.024.245.75.2551,024
47.208.0.047.209.95.25590,112
47.209.96.047.209.223.25532,768
47.209.224.047.211.159.255114,688
47.211.160.047.212.67.25541,984
47.212.68.047.212.127.25515,360
47.212.128.047.212.207.25520,480
47.212.208.047.213.95.25536,864
47.213.96.047.213.127.2558,192
47.213.128.047.213.215.25522,528
47.213.216.047.214.135.25545,056
47.214.136.047.214.231.25524,576
47.214.232.047.215.7.2558,192
47.215.8.047.215.71.25516,384
47.215.72.047.215.111.25510,240
47.215.112.047.215.171.25515,360
47.215.172.047.215.211.25510,240
47.215.212.047.216.111.25539,936
47.216.112.047.216.159.25512,288
47.216.160.047.219.3.255156,672
47.219.4.047.219.191.25548,128
47.219.192.047.220.175.25561,440
47.220.176.047.220.195.2555,120
47.220.196.047.221.43.25526,624
47.221.44.047.221.83.25510,240
47.221.84.047.221.91.2552,048
47.221.92.047.221.107.2554,096
47.221.108.047.221.119.2553,072
47.221.120.047.221.135.2554,096
47.221.136.047.222.7.25532,768
47.222.8.047.222.31.2556,144
47.222.32.047.222.67.2559,216
47.222.68.047.223.151.25587,040
47.223.152.047.223.187.2559,216
47.223.188.047.223.215.2557,168
47.223.216.047.223.255.25510,240
50.24.0.050.24.24.2556,400
50.24.25.050.24.71.25512,032
50.24.72.050.24.111.25510,240
50.24.112.050.24.151.25510,240
50.24.152.050.24.159.2552,048
50.24.160.050.24.207.25512,288
50.24.208.050.24.215.2552,048
50.24.216.050.25.115.25539,936
50.25.116.050.25.155.25510,240
50.25.156.050.25.223.25517,408
50.25.224.050.25.231.2552,048
50.25.232.050.25.247.2554,096
50.25.248.050.26.15.2556,144
50.26.16.050.26.59.25511,264
50.26.60.050.26.127.25517,408
50.26.128.050.26.211.25521,504
50.26.212.050.27.31.25519,456
50.27.32.050.27.71.25510,240
50.27.72.050.27.135.25516,384
50.27.136.050.27.148.2553,328
50.27.149.050.27.169.2555,376
50.27.170.050.27.171.255512
50.27.172.050.27.243.25518,432

Check a specific address

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