AS20289 — AS-ISGNOC
AS20289 announces 1 IPv4 prefixes covering 2,048 addresses and 0 IPv6 prefixes.
About this network
AS-ISGNOC is operated by ISG Technology.
What it's used for
- The address space carries network operations infrastructure, evidenced by the netname ISG-NOC-COLUMBIA and reverse DNS entries like 205-173-101-254.isgnoc.net.
- The AS announces 2048 IPv4 addresses across 1 prefix with 2 observed neighbours, a ratio consistent with a small, focused business or managed service provider rather than a large access or transit network.
Notable
- The registrant ISG Technology matches the AS holder, confirming consistent ownership of the announced space.
- The inventory consists of a single contiguous /21 block, indicating a compact and internally managed address estate without significant fragmentation or external leasing.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 205.173.96.0/21
Upstream networks
- AS62943 Missouri Network Alliance, LLC
- AS30029 Dobson Technologies - Transport and Telecom Solutions, LLC
Adjacent networks
BGP / ASN / CIDR
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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