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AS367
DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD)

AS367 announces 811,776 IPv4 addresses across 155 routed ranges, registered in US. Figures come from the public global routing table and are refreshed daily.

812K addressesIPv4 space announced
155Routed ranges
USRegistry country

Is AS367 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 checks any address against the Tor exit list and the published cloud-provider ranges. VPN and proxy verdicts need a live visit: they come from a /v1/evaluate call with the browser token, not from a bare 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.

Maskbreak 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 155 announced ranges.

Range startRange endAddresses
6.16.108.06.16.109.255512
6.48.80.06.48.95.2554,096
6.48.144.06.48.151.2552,048
6.48.160.06.48.175.2554,096
6.49.0.06.49.7.2552,048
6.49.32.06.49.63.2558,192
6.49.96.06.49.111.2554,096
6.49.120.06.49.127.2552,048
6.49.144.06.49.159.2554,096
6.50.28.06.50.35.2552,048
6.50.192.06.50.223.2558,192
6.52.16.06.52.17.255512
6.64.148.06.64.148.255256
6.64.150.06.64.150.255256
6.66.160.06.66.183.2556,144
6.66.186.06.66.191.2551,536
6.72.128.06.72.169.25510,752
6.72.172.06.72.175.2551,024
6.131.144.06.131.145.255512
6.131.156.06.131.159.2551,024
132.11.6.0132.11.6.255256
132.11.10.0132.11.10.255256
132.11.18.0132.11.22.2551,280
132.11.24.0132.11.30.2551,792
132.11.40.0132.11.42.255768
132.11.44.0132.11.49.2551,536
132.11.61.0132.11.62.255512
132.11.64.0132.11.69.2551,536
132.11.72.0132.11.72.255256
132.11.116.0132.11.116.255256
132.11.121.0132.11.122.255512
132.11.127.0132.11.127.255256
132.11.135.0132.11.135.255256
132.11.141.0132.11.142.255512
132.11.161.0132.11.162.255512
132.11.170.0132.11.172.255768
132.11.199.0132.11.201.255768
132.11.203.0132.11.203.255256
132.11.210.0132.11.211.255512
132.11.213.0132.11.213.255256
132.11.215.0132.11.218.2551,024
132.11.220.0132.11.221.255512
132.11.223.0132.11.231.2552,304
132.11.239.0132.11.239.255256
132.140.178.0132.140.178.255256
137.95.0.0137.95.1.255512
137.95.2.0137.95.3.255512
137.95.4.0137.95.21.2554,608
137.95.22.0137.95.31.2552,560
137.95.32.0137.95.39.2552,048
137.95.40.0137.95.46.2551,792
137.95.47.0137.95.203.25540,192
137.95.204.0137.95.213.2552,560
137.95.214.0137.95.255.25510,752
143.69.8.0143.69.13.2551,536
143.84.6.0143.84.6.255256
143.84.67.0143.84.67.255256
143.84.84.0143.84.84.255256
143.84.164.0143.84.164.255256
143.84.173.0143.84.173.255256
143.194.98.0143.194.101.2551,024
143.194.103.0143.194.109.2551,792
143.194.110.0143.194.127.2554,608
143.194.240.0143.194.255.2554,096
144.101.152.0144.101.154.255768
144.101.155.0144.101.159.2551,280
144.105.176.0144.105.191.2554,096
147.130.0.0147.130.207.25553,248
147.130.214.0147.130.233.2555,120
147.131.24.0147.131.35.2553,072
147.131.37.0147.131.37.255256
147.131.40.0147.131.63.2556,144
147.131.66.0147.131.67.255512
147.165.0.0147.165.255.25565,536
147.169.0.0147.169.66.25517,152
147.169.68.0147.169.255.25548,128
150.196.232.0150.196.235.2551,024
150.226.0.0150.226.255.25565,536
155.20.67.0155.20.67.255256
155.20.79.0155.20.79.255256
155.21.148.0155.21.149.255512
155.26.160.0155.26.175.2554,096
155.29.88.0155.29.91.2551,024
155.29.105.0155.29.107.255768
155.29.130.0155.29.131.255512
155.29.136.0155.29.139.2551,024
155.29.250.0155.29.250.255256
155.147.0.0155.147.255.25565,536
155.213.248.0155.213.251.2551,024
158.9.100.0158.9.101.255512
158.9.247.0158.9.247.255256
158.14.62.0158.14.62.255256
158.20.20.0158.20.20.255256
158.20.32.0158.20.32.255256
158.20.48.0158.20.64.2554,352
158.20.66.0158.20.67.255512
158.20.69.0158.20.70.255512
158.20.80.0158.20.81.255512
158.20.88.0158.20.88.255256
158.20.124.0158.20.251.25532,768

Check a specific address

The AS tells you who announces a range. An address check answers whether one address inside it is a Tor exit or sits in a published cloud range — for example 6.16.108.0, the first address in this AS's announced space; whether a visitor is on a VPN or proxy needs a live visit. The free lookup tool takes any address, and the IP intelligence hub explains what each signal means.

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