AS30136 — AD12
AS30136 announces 3 IPv4 prefixes covering 8,704 addresses and 0 IPv6 prefixes.
About this network
The AS handle AD12 is held by Adams 12, a public school district in Colorado.
What it's used for
- The address space carries internal district infrastructure, evidenced by netnames ADAMS-12 and WESTNET-ADAMS12-01/02.
- With 8704 IPv4 addresses across 7 prefixes and only 2 observed neighbours, the ratio indicates an internal corporate estate rather than a transit or access provider.
Notable
- All registrants in the RDAP data agree with the announcer, consistently listing "Adams 12" for every prefix.
- The inventory consists of a block of 204.228.x.x addresses and two /24s in 129.19.x.x, reflecting a standard subdivision for a large institutional network.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 129.19.151.0/24
- 129.19.152.0/24
- 204.228.96.0/19
Upstream networks
Adjacent networks
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IPv4
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IPv6
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Search Results
IPv4 Prefixes
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IPv6 Prefixes
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Total Prefixes
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Unique /24s
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⚠ SUSPICIOUS PREFIX ANNOUNCEMENTS DETECTED